[PATCH] mm/slab_common: Restore passing "caller" for tracing

[Kees Cook]

The "caller" argument was accidentally being ignored in a few places
that were recently refactored. Restore these "caller" arguments, instead
of _RET_IP_.

Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Fixes: 11e9734bcb6a ("mm/slab_common: unify NUMA and UMA version of tracepoints")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
 mm/slab_common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/slab_common.c b/mm/slab_common.c
index 33b1886b06eb..0e614f9e7ed7 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -941,7 +941,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller
 
 	if (unlikely(size > KMALLOC_MAX_CACHE_SIZE)) {
 		ret = __kmalloc_large_node(size, flags, node);
-		trace_kmalloc(_RET_IP_, ret, size,
+		trace_kmalloc(caller, ret, size,
 			      PAGE_SIZE << get_order(size), flags, node);
 		return ret;
 	}
@@ -953,7 +953,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller
 
 	ret = __kmem_cache_alloc_node(s, flags, node, size, caller);
 	ret = kasan_kmalloc(s, ret, size, flags);
-	trace_kmalloc(_RET_IP_, ret, size, s->size, flags, node);
+	trace_kmalloc(caller, ret, size, s->size, flags, node);
 	return ret;
 }
 
-- 
2.34.1