Commit-ID: b8fb03785d4de097507d0cf45873525e0ac4d2b2
Gitweb: http://git.kernel.org/tip/b8fb03785d4de097507d0cf45873525e0ac4d2b2
Author: Tony Luck <tony.l...@intel.com>
AuthorDate: Thu, 1 Sep 2016 11:39:33 -0700
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate: Mon, 5 Sep 2016 11:47:31 +0200
locking/static_keys: Provide DECLARE and well as DEFINE macros
We will need to provide declarations of static keys in header
files. Provide DECLARE_STATIC_KEY_{TRUE,FALSE} macros.
Signed-off-by: Tony Luck <tony.l...@intel.com>
Acked-by: Borislav Petkov <b...@suse.de>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Link:
http://lkml.kernel.org/r/816881cf85bd3cf13385d212882618f38a3b5d33.1472754711.git.tony.l...@intel.com
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
include/linux/jump_label.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 661af56..595fb46 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -267,9 +267,15 @@ struct static_key_false {
#define DEFINE_STATIC_KEY_TRUE(name) \
struct static_key_true name = STATIC_KEY_TRUE_INIT
+#define DECLARE_STATIC_KEY_TRUE(name) \
+ extern struct static_key_true name
+
#define DEFINE_STATIC_KEY_FALSE(name) \
struct static_key_false name = STATIC_KEY_FALSE_INIT
+#define DECLARE_STATIC_KEY_FALSE(name) \
+ extern struct static_key_false name
+
extern bool ____wrong_branch_error(void);
#define static_key_enabled(x)
\
