diff options
| author | Tony Luck <tony.luck@intel.com> | 2016-09-01 11:39:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 19:45:07 +0200 |
| commit | 5ec6421c21c6818c91509672c3f1c8b2e8bdb78d (patch) | |
| tree | 809a4a192347fa778ba50daf0aaae4b3e63bd2ed /include/linux | |
| parent | 40f6c72df9d81eec9de47742c937a288945d5b82 (diff) | |
locking/static_keys: Provide DECLARE and well as DEFINE macros
commit b8fb03785d4de097507d0cf45873525e0ac4d2b2 upstream.
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.luck@intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/816881cf85bd3cf13385d212882618f38a3b5d33.1472754711.git.tony.luck@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/jump_label.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 68904469fba1..2209eb0740b0 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) \ |