From ab18f04cf89ef4e8521c81c50477e1363b2d333b Mon Sep 17 00:00:00 2001 From: Khem Raj 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 --- 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