[PATCH 23/32] kasan: use kasan_addr_to_slab in print_address_description

[andrey . konovalov]

From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>

Use the kasan_addr_to_slab() helper in print_address_description()
instead of separately invoking PageSlab() and page_slab().

Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
---
 mm/kasan/report.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 879f949dc395..1dd6fc8a678f 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -291,12 +291,12 @@ static inline bool init_task_stack_addr(const void *addr)
 static void print_address_description(void *addr, u8 tag)
 {
 	struct page *page = kasan_addr_to_page(addr);
+	struct slab *slab = kasan_addr_to_slab(addr);
 
 	dump_stack_lvl(KERN_ERR);
 	pr_err("\n");
 
-	if (page && PageSlab(page)) {
-		struct slab *slab = page_slab(page);
+	if (slab) {
 		struct kmem_cache *cache = slab->slab_cache;
 		void *object = nearest_obj(cache, slab,	addr);
 
-- 
2.25.1