[PATCH] time: silence warning in tick_nohz_init().

[PATCH] time: silence warning in tick_nohz_init().

[majianpeng]

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Fix those warning message when compile:
>kernel/time/tick-sched.c: In function ¡®tick_nohz_init¡¯:
>kernel/time/tick-sched.c:346:6: warning: unused variable ¡®cpu¡¯ [-Wunused-variable]

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
---
 kernel/time/tick-sched.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 6960172..ca1d6e3 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -343,8 +343,6 @@ static int tick_nohz_init_all(void)
 
 void __init tick_nohz_init(void)
 {
-	int cpu;
-
 	if (!have_nohz_full_mask) {
 		if (tick_nohz_init_all() < 0)
 			return;
-- 
1.8.3.rc1.44.gb387c77
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