From b8fb03785d4de097507d0cf45873525e0ac4d2b2 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Thu, 1 Sep 2016 11:39:33 -0700 Subject: [PATCH] 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 Acked-by: Borislav Petkov Cc: Peter Zijlstra Cc: Dan Williams Cc: Linus Torvalds Link: http://lkml.kernel.org/r/816881cf85bd3cf13385d212882618f38a3b5d33.1472754711.git.tony.luck@intel.com Signed-off-by: Thomas Gleixner --- 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 661af564fae8..595fb46213fc 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) \ -- 2.20.1