diff mbox series

[073/114] kasan: drop addr check from describe_object_addr

Message ID 20220325011214.D1581C340EE@smtp.kernel.org (mailing list archive)
State New
Headers show
Series [001/114] tools/vm/page_owner_sort.c: sort by stacktrace before culling | expand

Commit Message

Andrew Morton March 25, 2022, 1:12 a.m. UTC 
From: Andrey Konovalov <andreyknvl@google.com>
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@google.com
Link: https://lkml.kernel.org/r/761f8e5a6ee040d665934d916a90afe9f322f745.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander 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: Andrew Morton <akpm@linux-foundation.org>
---

 mm/kasan/report.c |    3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

--- 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;