From: Peng Hao <peng.hao2@zte.com.cn>
Date: Tue, 9 Oct 2018 15:43:35 +0000 (-0400)
Subject: tick/sched : Remove redundant cpu_online() check
X-Git-Tag: v5.4-rc1~2377^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d59e0ba19481c0046d2ea2bd0e5344eeaf45aace;p=platform%2Fkernel%2Flinux-rpi.git

tick/sched : Remove redundant cpu_online() check

can_stop_idle_tick() checks cpu_online() twice. The first check leaves the
function when the CPU is not online, so the second check it
redundant. Remove it.

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fweisbec@gmail.com
Link: https://lkml.kernel.org/r/1539099815-2943-1-git-send-email-penghao122@sina.com.cn
---

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 5b33e2f..69e673b 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -885,7 +885,7 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
 	if (need_resched())
 		return false;
 
-	if (unlikely(local_softirq_pending() && cpu_online(cpu))) {
+	if (unlikely(local_softirq_pending())) {
 		static int ratelimit;
 
 		if (ratelimit < 10 &&