From: Andrew Morton <akpm@linux-foundation.org>

kernel/softirq.c: In function 'cpu_callback':
kernel/softirq.c:593: warning: unused variable 'param'

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/softirq.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff -puN kernel/softirq.c~cpu-hotplug-fix-ksoftirqd-termination-on-cpu-hotplug-with-naughty-realtime-process-fix kernel/softirq.c
--- a/kernel/softirq.c~cpu-hotplug-fix-ksoftirqd-termination-on-cpu-hotplug-with-naughty-realtime-process-fix
+++ a/kernel/softirq.c
@@ -590,7 +590,6 @@ static int __cpuinit cpu_callback(struct
 {
 	int hotcpu = (unsigned long)hcpu;
 	struct task_struct *p;
-	struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
 
 	switch (action) {
 	case CPU_UP_PREPARE:
@@ -616,13 +615,16 @@ static int __cpuinit cpu_callback(struct
 		kthread_bind(per_cpu(ksoftirqd, hotcpu),
 			     any_online_cpu(cpu_online_map));
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
+	case CPU_DEAD_FROZEN: {
+		struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
+
 		p = per_cpu(ksoftirqd, hotcpu);
 		per_cpu(ksoftirqd, hotcpu) = NULL;
 		sched_setscheduler(p, SCHED_FIFO, &param);
 		kthread_stop(p);
 		takeover_tasklets(hotcpu);
 		break;
+	}
 #endif /* CONFIG_HOTPLUG_CPU */
  	}
 	return NOTIFY_OK;
_