[PATCH 1/4] rcu: Provide a static initializer for hlist_nulls_head.

[Sebastian Andrzej Siewior]

Provide a static initializer for hlist_nulls_head so that it can be used
in statically defined data structures.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 include/linux/list_nulls.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/list_nulls.h b/include/linux/list_nulls.h
index fa6e8471bd227..248db9b77ee24 100644
--- a/include/linux/list_nulls.h
+++ b/include/linux/list_nulls.h
@@ -28,6 +28,7 @@ struct hlist_nulls_node {
 #define NULLS_MARKER(value) (1UL | (((long)value) << 1))
 #define INIT_HLIST_NULLS_HEAD(ptr, nulls) \
 	((ptr)->first = (struct hlist_nulls_node *) NULLS_MARKER(nulls))
+#define HLIST_NULLS_HEAD_INIT(nulls) {.first = (struct hlist_nulls_node *)NULLS_MARKER(nulls)}
 
 #define hlist_nulls_entry(ptr, type, member) container_of(ptr,type,member)
 
-- 
2.47.2