From: Yangtao Li <tiny.windzz@gmail.com>
Date: Sun, 4 Nov 2018 02:31:04 +0000 (-0400)
Subject: clockevents: Remove unnecessary unlikely()
X-Git-Tag: v5.0-rc1~168^2~14
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7d9df98be66fec64349f9f1c9d3e896293fe7b45;p=thirdparty%2Fkernel%2Flinux.git

clockevents: Remove unnecessary unlikely()

WARN_ON() and WARN_ON_ONCE() already contains an unlikely(), so it's not
necessary to use unlikely.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20181104023104.2572-1-tiny.windzz@gmail.com
---

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 8c0e4092f6618..af58898d9ebf1 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -39,10 +39,8 @@ static u64 cev_delta2ns(unsigned long latch, struct clock_event_device *evt,
 	u64 clc = (u64) latch << evt->shift;
 	u64 rnd;
 
-	if (unlikely(!evt->mult)) {
+	if (WARN_ON(!evt->mult))
 		evt->mult = 1;
-		WARN_ON(1);
-	}
 	rnd = (u64) evt->mult - 1;
 
 	/*
@@ -164,10 +162,8 @@ void clockevents_switch_state(struct clock_event_device *dev,
 		 * on it, so fix it up and emit a warning:
 		 */
 		if (clockevent_state_oneshot(dev)) {
-			if (unlikely(!dev->mult)) {
+			if (WARN_ON(!dev->mult))
 				dev->mult = 1;
-				WARN_ON(1);
-			}
 		}
 	}
 }
@@ -315,10 +311,8 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
 	int64_t delta;
 	int rc;
 
-	if (unlikely(expires < 0)) {
-		WARN_ON_ONCE(1);
+	if (WARN_ON_ONCE(expires < 0))
 		return -ETIME;
-	}
 
 	dev->next_event = expires;