mfd: Add support for TWL4030/5030 dynamic power switching

[cascardo/linux.git] / include / linux / wait.h

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 6788e1a..cf3c2f5 100644 (file)
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -77,7 +77,14 @@ struct task_struct;
 #define __WAIT_BIT_KEY_INITIALIZER(word, bit)                          \
        { .flags = word, .bit_nr = bit, }
 
-extern void init_waitqueue_head(wait_queue_head_t *q);
+extern void __init_waitqueue_head(wait_queue_head_t *q, struct lock_class_key *);
+
+#define init_waitqueue_head(q)                         \
+       do {                                            \
+               static struct lock_class_key __key;     \
+                                                       \
+               __init_waitqueue_head((q), &__key);     \
+       } while (0)
 
 #ifdef CONFIG_LOCKDEP
 # define __WAIT_QUEUE_HEAD_INIT_ONSTACK(name) \