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UPSTREAM: kcov: remove pointless current != NULL check

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(Upstream commit fcf4edac049a8bca41658970292e2dfdbc9d5f62.)

__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>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Bug: 147413187
Change-Id: I2c07ed1a805ff2e9e569adc5aa59386e47f5bb23
This commit is contained in:
Andrey Ryabinin 2017-11-17 15:30:42 -08:00 committed by Alistair Delva
parent d2905c6a0e
commit ac137d538b
1 changed files with 1 additions and 1 deletions
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kernel/kcov.c
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@ -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) {