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/[email protected] Signed-off-by: Andrey Ryabinin <[email protected]> Acked-by: Dmitry Vyukov <[email protected]> Acked-by: Mark Rutland <[email protected]> Cc: Andrey Konovalov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Nov 18, 2017 · fcf4eda · fcf4eda
1 parent 4efb442
commit fcf4eda
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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) {