85 #define STATIC_KEY_CHECK_USE(key) WARN(!static_key_initialized,		      \  argument
87 				    __func__, (key))
140 static __always_inline bool static_key_false(struct static_key *key)  in static_key_false()  argument
142 	return arch_static_branch(key, false);  in static_key_false()
145 static __always_inline bool static_key_true(struct static_key *key)  in static_key_true()  argument
147 	return !arch_static_branch(key, true);  in static_key_true()
162 extern void static_key_slow_inc(struct static_key *key);
163 extern void static_key_slow_dec(struct static_key *key);
164 extern void static_key_slow_inc_cpuslocked(struct static_key *key);
165 extern void static_key_slow_dec_cpuslocked(struct static_key *key);
167 extern int static_key_count(struct static_key *key);
168 extern void static_key_enable(struct static_key *key);
169 extern void static_key_disable(struct static_key *key);
170 extern void static_key_enable_cpuslocked(struct static_key *key);
171 extern void static_key_disable_cpuslocked(struct static_key *key);
192 static inline int static_key_count(struct static_key *key)  in static_key_count()  argument
194 	return atomic_read(&key->enabled);  in static_key_count()
204 static __always_inline bool static_key_false(struct static_key *key)  in static_key_false()  argument
206 	if (unlikely(static_key_count(key) > 0))  in static_key_false()
211 static __always_inline bool static_key_true(struct static_key *key)  in static_key_true()  argument
213 	if (likely(static_key_count(key) > 0))  in static_key_true()
218 static inline void static_key_slow_inc(struct static_key *key)  in static_key_slow_inc()  argument
220 	STATIC_KEY_CHECK_USE(key);  in static_key_slow_inc()
221 	atomic_inc(&key->enabled);  in static_key_slow_inc()
224 static inline void static_key_slow_dec(struct static_key *key)  in static_key_slow_dec()  argument
226 	STATIC_KEY_CHECK_USE(key);  in static_key_slow_dec()
227 	atomic_dec(&key->enabled);  in static_key_slow_dec()
230 #define static_key_slow_inc_cpuslocked(key) static_key_slow_inc(key)  argument
231 #define static_key_slow_dec_cpuslocked(key) static_key_slow_dec(key)  argument
246 static inline void static_key_enable(struct static_key *key)  in static_key_enable()  argument
248 	STATIC_KEY_CHECK_USE(key);  in static_key_enable()
250 	if (atomic_read(&key->enabled) != 0) {  in static_key_enable()
251 		WARN_ON_ONCE(atomic_read(&key->enabled) != 1);  in static_key_enable()
254 	atomic_set(&key->enabled, 1);  in static_key_enable()
257 static inline void static_key_disable(struct static_key *key)  in static_key_disable()  argument
259 	STATIC_KEY_CHECK_USE(key);  in static_key_disable()
261 	if (atomic_read(&key->enabled) != 1) {  in static_key_disable()
262 		WARN_ON_ONCE(atomic_read(&key->enabled) != 0);  in static_key_disable()
265 	atomic_set(&key->enabled, 0);  in static_key_disable()
289 	struct static_key key;  member
293 	struct static_key key;  member
296 #define STATIC_KEY_TRUE_INIT  (struct static_key_true) { .key = STATIC_KEY_INIT_TRUE,  }
297 #define STATIC_KEY_FALSE_INIT (struct static_key_false){ .key = STATIC_KEY_INIT_FALSE, }
400 		branch = !arch_static_branch(&(x)->key, true);			\
402 		branch = !arch_static_branch_jump(&(x)->key, true);		\
412 		branch = arch_static_branch_jump(&(x)->key, false);		\
414 		branch = arch_static_branch(&(x)->key, false);			\
422 #define static_branch_likely(x)		likely(static_key_enabled(&(x)->key))
423 #define static_branch_unlikely(x)	unlikely(static_key_enabled(&(x)->key))
431 #define static_branch_inc(x)		static_key_slow_inc(&(x)->key)
432 #define static_branch_dec(x)		static_key_slow_dec(&(x)->key)
433 #define static_branch_inc_cpuslocked(x)	static_key_slow_inc_cpuslocked(&(x)->key)
434 #define static_branch_dec_cpuslocked(x)	static_key_slow_dec_cpuslocked(&(x)->key)
440 #define static_branch_enable(x)			static_key_enable(&(x)->key)
441 #define static_branch_disable(x)		static_key_disable(&(x)->key)
442 #define static_branch_enable_cpuslocked(x)	static_key_enable_cpuslocked(&(x)->key)
443 #define static_branch_disable_cpuslocked(x)	static_key_disable_cpuslocked(&(x)->key)