136 void __kasan_unpoison_new_object(struct kmem_cache *cache, void *object);
138  * kasan_unpoison_new_object - Temporarily unpoison a new slab object.
139  * @cache: Cache the object belong to.
140  * @object: Pointer to the object.
143  * temporarily unpoisons an object from a newly allocated slab without doing
144  * anything else. The object must later be repoisoned by
148 							void *object)  in kasan_unpoison_new_object()  argument
151 		__kasan_unpoison_new_object(cache, object);  in kasan_unpoison_new_object()
154 void __kasan_poison_new_object(struct kmem_cache *cache, void *object);
156  * kasan_poison_new_object - Repoison a new slab object.
157  * @cache: Cache the object belong to.
158  * @object: Pointer to the object.
161  * repoisons an object that was previously unpoisoned by
165 							void *object)  in kasan_poison_new_object()  argument
168 		__kasan_poison_new_object(cache, object);  in kasan_poison_new_object()
172 					  const void *object);
174 				struct kmem_cache *cache, const void *object)  in kasan_init_slab_obj()  argument
177 		return __kasan_init_slab_obj(cache, object);  in kasan_init_slab_obj()
178 	return (void *)object;  in kasan_init_slab_obj()
181 bool __kasan_slab_pre_free(struct kmem_cache *s, void *object,
184  * kasan_slab_pre_free - Check whether freeing a slab object is safe.
185  * @object: Object to be freed.
187  * This function checks whether freeing the given object is safe. It may
192  * @Return true if freeing the object is unsafe; false otherwise.
195 						void *object)  in kasan_slab_pre_free()  argument
198 		return __kasan_slab_pre_free(s, object, _RET_IP_);  in kasan_slab_pre_free()
202 bool __kasan_slab_free(struct kmem_cache *s, void *object, bool init,
205  * kasan_slab_free - Poison, initialize, and quarantine a slab object.
206  * @object: Object to be freed.
207  * @init: Whether to initialize the object.
208  * @still_accessible: Whether the object contents are still accessible.
210  * This function informs that a slab object has been freed and is not
212  * (indicating that the object is in a SLAB_TYPESAFE_BY_RCU cache and an RCU
217  * the object's memory. For other modes, the @init argument is ignored.
219  * This function might also take ownership of the object to quarantine it.
220  * When this happens, KASAN will defer freeing the object to a later
222  * whether KASAN took ownership of the object.
226  * @Return true if KASAN took ownership of the object; false otherwise.
229 						void *object, bool init,  in kasan_slab_free()  argument
233 		return __kasan_slab_free(s, object, init, still_accessible);  in kasan_slab_free()
245 				       void *object, gfp_t flags, bool init);
247 		struct kmem_cache *s, void *object, gfp_t flags, bool init)  in kasan_slab_alloc()  argument
250 		return __kasan_slab_alloc(s, object, flags, init);  in kasan_slab_alloc()
251 	return object;  in kasan_slab_alloc()
254 void * __must_check __kasan_kmalloc(struct kmem_cache *s, const void *object,
257 				const void *object, size_t size, gfp_t flags)  in kasan_kmalloc()  argument
260 		return __kasan_kmalloc(s, object, size, flags);  in kasan_kmalloc()
261 	return (void *)object;  in kasan_kmalloc()
274 void * __must_check __kasan_krealloc(const void *object,
276 static __always_inline void * __must_check kasan_krealloc(const void *object,  in kasan_krealloc()  argument
280 		return __kasan_krealloc(object, new_size, flags);  in kasan_krealloc()
281 	return (void *)object;  in kasan_krealloc()
415 					void *object) {}  in kasan_unpoison_new_object()  argument
417 					void *object) {}  in kasan_poison_new_object()  argument
419 				const void *object)  in kasan_init_slab_obj()  argument
421 	return (void *)object;  in kasan_init_slab_obj()
424 static inline bool kasan_slab_pre_free(struct kmem_cache *s, void *object)  in kasan_slab_pre_free()  argument
429 static inline bool kasan_slab_free(struct kmem_cache *s, void *object,  in kasan_slab_free()  argument
435 static inline void *kasan_slab_alloc(struct kmem_cache *s, void *object,  in kasan_slab_alloc()  argument
438 	return object;  in kasan_slab_alloc()
440 static inline void *kasan_kmalloc(struct kmem_cache *s, const void *object,  in kasan_kmalloc()  argument
443 	return (void *)object;  in kasan_kmalloc()
449 static inline void *kasan_krealloc(const void *object, size_t new_size,  in kasan_krealloc()  argument
452 	return (void *)object;  in kasan_krealloc()
497 /* Tag-based KASAN modes do not use per-object metadata. */