diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8a8252e9e0c797384df08e7cade3366923aa82e6..c30705c3e5532121d024591cd4b9c6b27eecdfaf 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1003,8 +1003,6 @@ extern void wake_q_add(struct wake_q_head *head,
 		       struct task_struct *task);
 extern void wake_up_q(struct wake_q_head *head);
 
-extern void wake_up_if_idle(int cpu);
-
 struct io_context;			/* See blkdev.h */
 
 
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 6aabc9968cba7048898e9b77c2357d74ce281773..72b6b6ab6354734d9056fcdde15404c15a04f5c3 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -10,4 +10,6 @@ enum cpu_idle_type {
 	CPU_MAX_IDLE_TYPES
 };
 
+extern void wake_up_if_idle(int cpu);
+
 #endif /* _LINUX_SCHED_IDLE_H */