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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2017-11-17 15:30:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 16:10:04 -0800 |
| commit | fcf4edac049a8bca41658970292e2dfdbc9d5f62 (patch) | |
| tree | a8745b419a9e85949417c3d7a42b39ddbfe4b697 | |
| parent | 4efb442cc12eb66535b7c7ed06005fd7889c1d77 (diff) | |
| download | linux-fcf4edac049a8bca41658970292e2dfdbc9d5f62.tar.gz linux-fcf4edac049a8bca41658970292e2dfdbc9d5f62.tar.bz2 linux-fcf4edac049a8bca41658970292e2dfdbc9d5f62.zip | |
kcov: remove pointless current != NULL check
__sanitizer_cov_trace_pc() is a hot code, so it's worth to remove
pointless '!current' check. Current is never NULL.
Link: http://lkml.kernel.org/r/20170929162221.32500-1-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | kernel/kcov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kcov.c b/kernel/kcov.c index fc6af9e1308b..d9f9fa9cacc6 100644 --- a/kernel/kcov.c +++ b/kernel/kcov.c @@ -62,7 +62,7 @@ void notrace __sanitizer_cov_trace_pc(void) * We are interested in code coverage as a function of a syscall inputs, * so we ignore code executed in interrupts. */ - if (!t || !in_task()) + if (!in_task()) return; mode = READ_ONCE(t->kcov_mode); if (mode == KCOV_MODE_TRACE) { |