[PATCH 1/2] klist: implement KLIST_INIT() and DEFINE_KLIST()

[Tejun Heo <htejun@gmail.com>]

klist is missing static initializers and definition helper.  Add them.

Signed-off-by: Tejun Heo <htejun@gmail.com>
---
I can't tell who's in charge of this code, so I'm including last two
people who made changes and Andrew :-) This will be used by later USB
mode switch support, so I'm cc'ing USB people too.

Thanks.

 include/linux/klist.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/klist.h b/include/linux/klist.h
index 7407125..c6b697c 100644
--- a/include/linux/klist.h
+++ b/include/linux/klist.h
@@ -25,6 +25,14 @@ struct klist {
 	void			(*put)(struct klist_node *);
 };
 
+#define KLIST_INIT(_name, _get, _put)					\
+	{ .k_lock	= __SPIN_LOCK_UNLOCKED(klist.k_lock),		\
+	  .k_list	= LIST_HEAD_INIT(_name.k_list),			\
+	  .get		= _get,						\
+	  .put		= _put, }
+
+#define DEFINE_KLIST(_name, _get, _put)					\
+	struct klist _name = KLIST_INIT(_name, _get, _put)
 
 extern void klist_init(struct klist * k, void (*get)(struct klist_node *),
 		       void (*put)(struct klist_node *));
-- 
1.5.2.4