linux-kernel - [PATCH] sched: Fix a GCC compiled warning.

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Date:   Fri, 14 Sep 2018 22:49:09 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <mingo@...hat.com>, <peterz@...radead.org>
CC:     <linux-kernel@...r.kernel.org>
Subject: [PATCH] sched: Fix a GCC compiled warning.

Fix the following compile warning:

kernel/sched/core.c: In function update_rq_clock_task:
kernel/sched/core.c:139:6: warning: unused variable steal [-Wunused-variable]
  s64 steal = 0, irq_delta = 0;

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7577ce4..1003c1d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -136,7 +136,7 @@ static void update_rq_clock_task(struct rq *rq, s64 delta)
  * to sched_rt_avg_update. But I don't trust it...
  */
 #if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
-	s64 steal = 0, irq_delta = 0;
+	s64 __maybe_unused steal = 0, irq_delta = 0;
 #endif
 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
 	irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time;
-- 
1.7.12.4