[PATCH 4/4] kasan, slab: remove redundant kasan_slab_alloc hooks

[Andrey Konovalov]

kasan_slab_alloc() calls in kmem_cache_alloc() and kmem_cache_alloc_node()
are redundant as they are already called via slab_alloc/slab_alloc_node()->
slab_post_alloc_hook()->kasan_slab_alloc(). Remove them.

Signed-off-by: Andrey Konovalov <andreyk...@google.com>
---
 mm/slab.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 4ad95fcb1686..91c1863df93d 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3547,7 +3547,6 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t 
flags)
 {
        void *ret = slab_alloc(cachep, flags, _RET_IP_);
 
-       ret = kasan_slab_alloc(cachep, ret, flags);
        trace_kmem_cache_alloc(_RET_IP_, ret,
                               cachep->object_size, cachep->size, flags);
 
@@ -3637,7 +3636,6 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, 
gfp_t flags, int nodeid)
 {
        void *ret = slab_alloc_node(cachep, flags, nodeid, _RET_IP_);
 
-       ret = kasan_slab_alloc(cachep, ret, flags);
        trace_kmem_cache_alloc_node(_RET_IP_, ret,
                                    cachep->object_size, cachep->size,
                                    flags, nodeid);
-- 
2.21.0.rc0.258.g878e2cd30e-goog