[PATCH] sched: idle: Change the cpu_idle_poll() return type to void

[Frank Lee]

From: Yangtao Li <frank@xxxxxxxxxxxxxxxxx>

No one cares about the return value of this function, which only
increases the time spent in idle loop. Let's drop it.

Signed-off-by: Yangtao Li <frank@xxxxxxxxxxxxxxxxx>

---
 kernel/sched/idle.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 6bf34986f45c..5250a7c466e6 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -52,7 +52,7 @@ static int __init cpu_idle_nopoll_setup(char *__unused)
 __setup("hlt", cpu_idle_nopoll_setup);
 #endif
 
-static noinline int __cpuidle cpu_idle_poll(void)
+static noinline void __cpuidle cpu_idle_poll(void)
 {
 	rcu_idle_enter();
 	trace_cpu_idle_rcuidle(0, smp_processor_id());
@@ -65,8 +65,6 @@ static noinline int __cpuidle cpu_idle_poll(void)
 	start_critical_timings();
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
 	rcu_idle_exit();
-
-	return 1;
 }
 
 /* Weak implementations for optional arch specific functions */
-- 
2.28.0