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stop_machine: Move local variable closer to the usage site in cpu_stop_cpu_callback()

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This addresses the following compiler warning:

 kernel/stop_machine.c: In function 'cpu_stop_cpu_callback':
 kernel/stop_machine.c:297: warning: unused variable 'work'

Cc: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <tip-3fc1f1e27a5b807791d72e5d992aa33b668a6626@git.kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2010-05-18 00:17:44 +02:00
parent a93d2f1744
commit 9c6f7e43b4
1 changed files with 4 additions and 1 deletions
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5
kernel/stop_machine.c
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@ -294,7 +294,6 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb,
struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 }; struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 };
unsigned int cpu = (unsigned long)hcpu; unsigned int cpu = (unsigned long)hcpu;
struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu); struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu);
struct cpu_stop_work *work;
struct task_struct *p; struct task_struct *p;
switch (action & ~CPU_TASKS_FROZEN) { switch (action & ~CPU_TASKS_FROZEN) {
@ -323,6 +322,9 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb,
#ifdef CONFIG_HOTPLUG_CPU #ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED: case CPU_UP_CANCELED:
case CPU_DEAD: case CPU_DEAD:
{
struct cpu_stop_work *work;
/* kill the stopper */ /* kill the stopper */
kthread_stop(stopper->thread); kthread_stop(stopper->thread);
/* drain remaining works */ /* drain remaining works */
@ -335,6 +337,7 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb,
put_task_struct(stopper->thread); put_task_struct(stopper->thread);
stopper->thread = NULL; stopper->thread = NULL;
break; break;
}
#endif #endif
} }