From 48eb2bc60c2504cd2bcb5a67a5bcc50af693eec8 Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <aryabinin@virtuozzo.com>
Date: Fri, 17 Nov 2017 15:30:42 -0800
Subject: UPSTREAM: 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>

Bug: 64145065
(cherry-picked from fcf4edac049a8bca41658970292e2dfdbc9d5f62)
Change-Id: Ia76e8c6cc0dc3fb796d8e8b92430fcf659b52eee
Signed-off-by: Paul Lawrence <paullawrence@google.com>
---
 kernel/kcov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel')

diff --git a/kernel/kcov.c b/kernel/kcov.c
index f348bcbea7d2..9b909cce4deb 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) {
-- 
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