diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kasan.h | 43 | ||||
| -rw-r--r-- | include/linux/slab.h | 4 |
2 files changed, 31 insertions, 16 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 46aae129917c..52c86a568a4e 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -51,16 +51,16 @@ void kasan_cache_shutdown(struct kmem_cache *cache); void kasan_poison_slab(struct page *page); void kasan_unpoison_object_data(struct kmem_cache *cache, void *object); void kasan_poison_object_data(struct kmem_cache *cache, void *object); -void kasan_init_slab_obj(struct kmem_cache *cache, const void *object); +void *kasan_init_slab_obj(struct kmem_cache *cache, const void *object); -void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags); +void *kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags); void kasan_kfree_large(void *ptr, unsigned long ip); void kasan_poison_kfree(void *ptr, unsigned long ip); -void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size, +void *kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size, gfp_t flags); -void kasan_krealloc(const void *object, size_t new_size, gfp_t flags); +void *kasan_krealloc(const void *object, size_t new_size, gfp_t flags); -void kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags); +void *kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags); bool kasan_slab_free(struct kmem_cache *s, void *object, unsigned long ip); struct kasan_cache { @@ -105,19 +105,34 @@ static inline void kasan_unpoison_object_data(struct kmem_cache *cache, void *object) {} static inline void kasan_poison_object_data(struct kmem_cache *cache, void *object) {} -static inline void kasan_init_slab_obj(struct kmem_cache *cache, - const void *object) {} +static inline void *kasan_init_slab_obj(struct kmem_cache *cache, + const void *object) +{ + return (void *)object; +} -static inline void kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) {} +static inline void *kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) +{ + return ptr; +} static inline void kasan_kfree_large(void *ptr, unsigned long ip) {} static inline void kasan_poison_kfree(void *ptr, unsigned long ip) {} -static inline void kasan_kmalloc(struct kmem_cache *s, const void *object, - size_t size, gfp_t flags) {} -static inline void kasan_krealloc(const void *object, size_t new_size, - gfp_t flags) {} +static inline void *kasan_kmalloc(struct kmem_cache *s, const void *object, + size_t size, gfp_t flags) +{ + return (void *)object; +} +static inline void *kasan_krealloc(const void *object, size_t new_size, + gfp_t flags) +{ + return (void *)object; +} -static inline void kasan_slab_alloc(struct kmem_cache *s, void *object, - gfp_t flags) {} +static inline void *kasan_slab_alloc(struct kmem_cache *s, void *object, + gfp_t flags) +{ + return object; +} static inline bool kasan_slab_free(struct kmem_cache *s, void *object, unsigned long ip) { diff --git a/include/linux/slab.h b/include/linux/slab.h index 918f374e7156..351ac48dabc4 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -444,7 +444,7 @@ static __always_inline void *kmem_cache_alloc_trace(struct kmem_cache *s, { void *ret = kmem_cache_alloc(s, flags); - kasan_kmalloc(s, ret, size, flags); + ret = kasan_kmalloc(s, ret, size, flags); return ret; } @@ -455,7 +455,7 @@ kmem_cache_alloc_node_trace(struct kmem_cache *s, { void *ret = kmem_cache_alloc_node(s, gfpflags, node); - kasan_kmalloc(s, ret, size, gfpflags); + ret = kasan_kmalloc(s, ret, size, gfpflags); return ret; } #endif /* CONFIG_TRACING */ |
