linux-kernel - [PATCH mm 01/22] kasan: drop addr check from describe_object

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Message-Id: <761f8e5a6ee040d665934d916a90afe9f322f745.1646237226.git.andreyknvl@google.com>
Date:   Wed,  2 Mar 2022 17:36:21 +0100
From:   andrey.konovalov@...ux.dev
To:     Marco Elver <elver@...gle.com>,
        Alexander Potapenko <glider@...gle.com>
Cc:     Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        kasan-dev@...glegroups.com,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH mm 01/22] kasan: drop addr check from describe_object_addr

From: Andrey Konovalov <andreyknvl@...gle.com>

describe_object_addr() used to be called with NULL addr in the early
days of KASAN. This no longer happens, so drop the check.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 mm/kasan/report.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index f64352008bb8..607a8c2e4674 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -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;
-- 
2.25.1