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Subject[PATCH v2] kcov: remove pointless current != NULL check
Date
__sanitizer_cov_trace_pc() is a hot code, so it's worth
to remove pointless '!current' check. Current is never NULL.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---

Changes since v1:
- Collect acks and drop other patches.

kernel/kcov.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index 3f693a0f6f3e..d9a4ee1f3423 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -61,7 +61,7 @@ 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) {
--
2.13.6
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