Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes from the latest perf-tools pull request from Namhyung
and get perf-tools-next in line with thinngs in other areas it uses,
like tools/lib/bpf, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>