diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index a0384a4..0a9141e 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -410,7 +410,6 @@
 #define __raise_softirq_irqoff(nr) do { or_softirq_pending(1UL << (nr)); } while (0)
 extern void raise_softirq_irqoff(unsigned int nr);
 extern void raise_softirq(unsigned int nr);
-extern void wakeup_softirqd(void);
 
 /* This is the worklist that queues up per-cpu softirq work.
  *
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 07b4f1b..80f6e3b 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -67,7 +67,7 @@
  * to the pending events, so lets the scheduler to balance
  * the softirq load for us.
  */
-void wakeup_softirqd(void)
+static void wakeup_softirqd(void)
 {
 	/* Interrupts are disabled: no need to stop preemption */
 	struct task_struct *tsk = __get_cpu_var(ksoftirqd);