kernel/notifier.c: simplify expression

NOTIFY_STOP_MASK (0x8000) has only one bit set and there is no need to
compare output of "ret & NOTIFY_STOP_MASK" to NOTIFY_STOP_MASK.  We just
need to make sure the output is non-zero, that's it.

Link: http://lkml.kernel.org/r/88ee58264a2bfab1c97ffc8ac753e25f55f57c10.1483593065.git.viresh.kumar@linaro.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/notifier.c b/kernel/notifier.c
index fd2c9ac..6196af8 100644 (file)
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -95,7 +95,7 @@ static int notifier_call_chain(struct notifier_block **nl,
                if (nr_calls)
                        (*nr_calls)++;
 
-               if ((ret & NOTIFY_STOP_MASK) == NOTIFY_STOP_MASK)
+               if (ret & NOTIFY_STOP_MASK)
                        break;
                nb = next_nb;
                nr_to_call--;