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From ab18f04cf89ef4e8521c81c50477e1363b2d333b Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 28 Apr 2018 09:46:12 -0700
Subject: [PATCH] use memmove instead of memcpy on overlapping region
Fixes
super0.c:526:3: error: 'memcpy' accessing 3936 bytes at offsets 156 and 160 overlaps 3932 bytes at offset 160 [-Werror=restrict]
Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
super0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/super0.c b/super0.c
index f5b4507..264b598 100644
--- a/super0.c
+++ b/super0.c
@@ -523,7 +523,7 @@ static int update_super0(struct supertype *st, struct mdinfo *info,
* up 4 bytes before continuing
*/
__u32 *sb32 = (__u32*)sb;
- memcpy(sb32+MD_SB_GENERIC_CONSTANT_WORDS+7,
+ memmove(sb32+MD_SB_GENERIC_CONSTANT_WORDS+7,
sb32+MD_SB_GENERIC_CONSTANT_WORDS+7+1,
(MD_SB_WORDS - (MD_SB_GENERIC_CONSTANT_WORDS+7+1))*4);
if (verbose >= 0)
--
2.17.0
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