diff --git a/mm/slub.c b/mm/slub.c
index 7870ef9d8636..1af7f2f19420 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -308,7 +308,7 @@ static inline int is_end(void *addr)
 	return (unsigned long)addr & PAGE_MAPPING_ANON;
 }
 
-void *slab_address(struct page *page)
+static void *slab_address(struct page *page)
 {
 	return page->end - PAGE_MAPPING_ANON;
 }