375 #define __classhashfn(key)	hash_long((unsigned long)key, CLASSHASH_BITS)  argument
376 #define classhashentry(key)	(classhash_table + __classhashfn((key)))  argument
412 static inline u64 iterate_chain_key(u64 key, u32 idx)  in iterate_chain_key()  argument
414 	u32 k0 = key, k1 = key >> 32;  in iterate_chain_key()
631 const char *__get_key_name(const struct lockdep_subclass_key *key, char *str)  in __get_key_name()  argument
633 	return kallsyms_lookup((unsigned long)key, NULL, NULL, NULL, str);  in __get_key_name()
687 		name = __get_key_name(class->key, str);  in __print_lock_name()
718 		name = __get_key_name(lock->key->subkeys, str);  in print_lockdep_cache()
833 		if (new_class->key - new_class->subclass == class->key)  in count_matching_names()
846 	struct lockdep_subclass_key *key;  in look_up_lock_class()  local
866 	if (unlikely(!lock->key))  in look_up_lock_class()
878 	key = lock->key->subkeys + subclass;  in look_up_lock_class()
880 	hash_head = classhashentry(key);  in look_up_lock_class()
889 		if (class->key == key) {  in look_up_lock_class()
895 				     lock->key != &__lockdep_no_validate__);  in look_up_lock_class()
924 		lock->key = (void *)can_addr;  in assign_lock_key()
926 		lock->key = (void *)can_addr;  in assign_lock_key()
928 		lock->key = (void *)lock;  in assign_lock_key()
1164 static inline struct hlist_head *keyhashentry(const struct lock_class_key *key)  in keyhashentry()  argument
1166 	unsigned long hash = hash_long((uintptr_t)key, KEYHASH_BITS);  in keyhashentry()
1172 void lockdep_register_key(struct lock_class_key *key)  in lockdep_register_key()  argument
1178 	if (WARN_ON_ONCE(static_obj(key)))  in lockdep_register_key()
1180 	hash_head = keyhashentry(key);  in lockdep_register_key()
1186 		if (WARN_ON_ONCE(k == key))  in lockdep_register_key()
1189 	hlist_add_head_rcu(&key->hash_entry, hash_head);  in lockdep_register_key()
1198 static bool is_dynamic_key(const struct lock_class_key *key)  in is_dynamic_key()  argument
1204 	if (WARN_ON_ONCE(static_obj(key)))  in is_dynamic_key()
1215 	hash_head = keyhashentry(key);  in is_dynamic_key()
1219 		if (k == key) {  in is_dynamic_key()
1237 	struct lockdep_subclass_key *key;  in register_lock_class()  local
1248 	if (!lock->key) {  in register_lock_class()
1251 	} else if (!static_obj(lock->key) && !is_dynamic_key(lock->key)) {  in register_lock_class()
1255 	key = lock->key->subkeys + subclass;  in register_lock_class()
1256 	hash_head = classhashentry(key);  in register_lock_class()
1266 		if (class->key == key)  in register_lock_class()
1287 	class->key = key;  in register_lock_class()
1313 		printk("\nnew class %px: %s", class->key, class->name);  in register_lock_class()
2299 		depth, "", class->key, class->key);  in print_lock_class_header()
2960 	if (!hlock_class(prev)->key || !hlock_class(next)->key) {  in check_prev_add()
2967 		WARN_ONCE(!debug_locks_silent && !hlock_class(prev)->key,  in check_prev_add()
2971 		WARN_ONCE(!debug_locks_silent && !hlock_class(next)->key,  in check_prev_add()
3653 					class->key, class->name);  in lookup_chain_cache_add()
3661 			(unsigned long long)chain_key, class->key, class->name);  in lookup_chain_cache_add()
4703 			    struct lock_class_key *key, int subclass,  in lockdep_init_map_type()  argument
4732 	if (DEBUG_LOCKS_WARN_ON(!key))  in lockdep_init_map_type()
4738 	if (!static_obj(key) && !is_dynamic_key(key)) {  in lockdep_init_map_type()
4740 			printk(KERN_ERR "BUG: key %px has not been registered!\n", key);  in lockdep_init_map_type()
4744 	lock->key = key;  in lockdep_init_map_type()
4825 	if (!prove_locking || lock->key == &__lockdep_no_validate__)  in __lock_acquire()
4842 		printk("\nacquire class [%px] %s", class->key, class->name);  in __lock_acquire()
4951 		WARN_ON_ONCE(depth && !hlock_class(hlock - 1)->key);  in __lock_acquire()
4952 		WARN_ON_ONCE(!hlock_class(hlock)->key);  in __lock_acquire()
5117 		 struct lock_class_key *key, unsigned int subclass,  in __lock_set_class()  argument
5143 	lockdep_init_map_type(lock, name, key, 0,  in __lock_set_class()
5440 		    struct lock_class_key *key, unsigned int subclass,  in lock_set_class()  argument
5451 	if (__lock_set_class(lock, name, key, subclass, ip))  in lock_set_class()
5904 	WARN_ON_ONCE(!class->key);  in zap_class()
5922 		WRITE_ONCE(class->key, NULL);  in zap_class()
5940 	const unsigned int offset = offsetof(struct lock_class, key);  in reinit_class()
6052 			if (!within(class->key, start, size) &&  in __lockdep_free_key_range()
6225 void lockdep_unregister_key(struct lock_class_key *key)  in lockdep_unregister_key()  argument
6227 	struct hlist_head *hash_head = keyhashentry(key);  in lockdep_unregister_key()
6235 	if (WARN_ON_ONCE(static_obj(key)))  in lockdep_unregister_key()
6242 		if (k == key) {  in lockdep_unregister_key()
6251 		__lockdep_free_key_range(pf, key, 1);  in lockdep_unregister_key()