From: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Subject: kasan: drop addr check from describe_object_addr Patch series "kasan: report clean-ups and improvements". A number of clean-up patches for KASAN reporting code. Most are non-functional and only improve readability. This patch (of 22): describe_object_addr() used to be called with NULL addr in the early days of KASAN. This no longer happens, so drop the check. Link: https://lkml.kernel.org/r/cover.1646237226.git.andreyknvl@xxxxxxxxxx Link: https://lkml.kernel.org/r/761f8e5a6ee040d665934d916a90afe9f322f745.1646237226.git.andreyknvl@xxxxxxxxxx Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Marco Elver <elver@xxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/kasan/report.c | 3 --- 1 file changed, 3 deletions(-) --- a/mm/kasan/report.c~kasan-drop-addr-check-from-describe_object_addr +++ a/mm/kasan/report.c @@ -162,9 +162,6 @@ static void describe_object_addr(struct " which belongs to the cache %s of size %d\n", object, cache->name, cache->object_size); - if (!addr) - return; - if (access_addr < object_addr) { rel_type = "to the left"; rel_bytes = object_addr - access_addr; _
