Merge 3.18.52 into android-3.18

Changes in 3.18.52:
	f2fs: do more integrity verification for superblock
	xc2028: unlock on error in xc2028_set_config()
	ext4: check if in-inode xattr is corrupted in ext4_expand_extra_isize_ea()
	md:raid1: fix a dead loop when read from a WriteMostly disk
	MIPS: Fix crash registers on non-crashing CPUs
	RDS: Fix the atomicity for congestion map update
	usb: gadget: f_midi: Fixed a bug when buflen was smaller than wMaxPacketSize
	xen/x86: don't lose event interrupts
	sparc64: kern_addr_valid regression
	sparc64: Fix kernel panic due to erroneous #ifdef surrounding pmd_write()
	net: neigh: guard against NULL solicit() method
	net: phy: handle state correctly in phy_stop_machine
	l2tp: purge socket queues in the .destruct() callback
	net/packet: fix overflow in check for tp_frame_nr
	net/packet: fix overflow in check for tp_reserve
	sctp: listen on the sock only when it's state is listening or closed
	netpoll: Check for skb->queue_mapping
	ip6mr: fix notification device destruction
	ALSA: seq: Don't break snd_use_lock_sync() loop by timeout
	MIPS: KGDB: Use kernel context for sleeping threads
	p9_client_readdir() fix
	Input: i8042 - add Clevo P650RS to the i8042 reset list
	nfsd: check for oversized NFSv2/v3 arguments
	ftrace/x86: Fix triple fault with graph tracing and suspend-to-ram
	powerpc/ptrace: Fix out of bounds array access warning
	drbd: avoid redefinition of BITS_PER_PAGE
	IB/iser: Fix sparse warnings
	mtd: avoid stack overflow in MTD CFI code
	mlx5: avoid build warnings on 32-bit
	PCI: xilinx: Fix harmless format string warning
	ALSA: ppc/awacs: shut up maybe-uninitialized warning
	cred/userns: define current_user_ns() as a function
	net: tg3: avoid uninitialized variable warning
	timerfd: Protect the might cancel mechanism proper
	Handle mismatched open calls
	ALSA: pcm : Call kill_fasync() in stream lock
	regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
	perf: Tighten (and fix) the grouping condition
	posix_acl: Clear SGID bit when setting file permissions
	l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
	net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
	mm: avoid setting up anonymous pages into file mapping
	ARM: cns3xxx: shut up frame size warning
	arm64: Provide a namespace to NCAPS
	staging: vt6655: fix overly large stack usage
	staging: imx-drm: fix indentation warning
	staging: bcm: add 32-bit host dependency
	IB/qib: rename BITS_PER_PAGE to RVT_BITS_PER_PAGE
	IB/ehca: fix maybe-uninitialized warnings
	tty/isicom: fix big-endian compile warning
	infiniband: mlx5: avoid a compile-time warning
	ips: remove pointless #warning
	mISDN: avoid arch specific __builtin_return_address call
	arm64: build vdso without libgcov
	mm/cma: silence warnings due to max() usage
	MIPS: jz4740: fix build error in irq.h
	MIPS: elf2ecoff: Ignore PT_MIPS_ABIFLAGS program headers.
	MIPS: elf2ecoff: Fix warning due to dead code.
	staging: unisys: correctly handle return value from queue_delayed_work()
	i2o: hide unsafe ioctl on 64-bit
	scsi: advansys: remove #warning message
	modpost: expand pattern matching to support substring matches
	modpost: don't emit section mismatch warnings for compiler optimizations
	cpumask_set_cpu_local_first => cpumask_local_spread, lament
	e1000e: fix call to do_div() to use u64 arg
	gfs2: remove IS_ERR_VALUE abuse
	kbuild: mergeconfig: fix "jobserver unavailable" warning
	dm ioctl: prevent stack leak in dm ioctl call
	Linux 3.18.52

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>