diff --git a/include/linux/wait.h b/include/linux/wait.h
index 794be7af58aeff2191059ab350b1b258ea597a03..b3b9048421d8489568d27f41ff1303e09ab51f37 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -77,17 +77,7 @@ struct task_struct;
 #define __WAIT_BIT_KEY_INITIALIZER(word, bit)				\
 	{ .flags = word, .bit_nr = bit, }
 
-/*
- * lockdep: we want one lock-class for all waitqueue locks.
- */
-extern struct lock_class_key waitqueue_lock_key;
-
-static inline void init_waitqueue_head(wait_queue_head_t *q)
-{
-	spin_lock_init(&q->lock);
-	lockdep_set_class(&q->lock, &waitqueue_lock_key);
-	INIT_LIST_HEAD(&q->task_list);
-}
+extern void init_waitqueue_head(wait_queue_head_t *q);
 
 static inline void init_waitqueue_entry(wait_queue_t *q, struct task_struct *p)
 {
diff --git a/kernel/wait.c b/kernel/wait.c
index a1d57aeb7f7543fe2eeedb4aa8d8899f5abf3242..59a82f63275df037dd5bfb1062cffe317a698383 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -10,9 +10,13 @@
 #include <linux/wait.h>
 #include <linux/hash.h>
 
-struct lock_class_key waitqueue_lock_key;
+void init_waitqueue_head(wait_queue_head_t *q)
+{
+	spin_lock_init(&q->lock);
+	INIT_LIST_HEAD(&q->task_list);
+}
 
-EXPORT_SYMBOL(waitqueue_lock_key);
+EXPORT_SYMBOL(init_waitqueue_head);
 
 void fastcall add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
 {