Commit fcf4edac authored by Andrey Ryabinin's avatar Andrey Ryabinin Committed by Linus Torvalds
Browse files

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: default avatarAndrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: default avatarDmitry Vyukov <dvyukov@google.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4efb442c
...@@ -62,7 +62,7 @@ void notrace __sanitizer_cov_trace_pc(void) ...@@ -62,7 +62,7 @@ void notrace __sanitizer_cov_trace_pc(void)
* We are interested in code coverage as a function of a syscall inputs, * We are interested in code coverage as a function of a syscall inputs,
* so we ignore code executed in interrupts. * so we ignore code executed in interrupts.
*/ */
if (!t || !in_task()) if (!in_task())
return; return;
mode = READ_ONCE(t->kcov_mode); mode = READ_ONCE(t->kcov_mode);
if (mode == KCOV_MODE_TRACE) { if (mode == KCOV_MODE_TRACE) {
......
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