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Message-Id: <20190506143052.471187212@linuxfoundation.org>
Date: Mon, 6 May 2019 16:32:47 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Colin Ian King <colin.king@...onical.com>,
Andrey Ryabinin <aryabinin@...tuozzo.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Alexander Potapenko <glider@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH 4.9 16/62] kasan: remove redundant initialization of variable real_size
From: Colin Ian King <colin.king@...onical.com>
commit 48c232395431c23d35cf3b4c5a090bd793316578 upstream.
Variable real_size is initialized with a value that is never read, it is
re-assigned a new value later on, hence the initialization is redundant
and can be removed.
Cleans up clang warning:
lib/test_kasan.c:422:21: warning: Value stored to 'real_size' during its initialization is never read
Link: http://lkml.kernel.org/r/20180206144950.32457-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Acked-by: Andrey Ryabinin <aryabinin@...tuozzo.com>
Reviewed-by: Andrew Morton <akpm@...ux-foundation.org>
Cc: Alexander Potapenko <glider@...gle.com>
Cc: Dmitry Vyukov <dvyukov@...gle.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
lib/test_kasan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -355,7 +355,7 @@ static noinline void __init kasan_stack_
static noinline void __init ksize_unpoisons_memory(void)
{
char *ptr;
- size_t size = 123, real_size = size;
+ size_t size = 123, real_size;
pr_info("ksize() unpoisons the whole allocated chunk\n");
ptr = kmalloc(size, GFP_KERNEL);
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