Commit 7131c883 authored by Andrey Konovalov's avatar Andrey Konovalov Committed by Linus Torvalds
Browse files

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@google.com
Link: https://lkml.kernel.org/r/761f8e5a6ee040d665934d916a90afe9f322f745.1646237226.git.andreyknvl@google.com


Signed-off-by: default avatarAndrey Konovalov <andreyknvl@google.com>
Reviewed-by: default avatarAlexander Potapenko <glider@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c056a364

mm/kasan/report.c

+0 −3
Original line number Diff line number Diff line
@@ -162,9 +162,6 @@ static void describe_object_addr(struct kmem_cache *cache, void *object, 
	       " 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;