netdev - [PATCH 2/4] [IPV4] TCPMD5: Use memmove() instead of memcpy() because we have overlaps.

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Date:	Wed, 21 Nov 2007 01:51:28 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	davem@...emloft.net, herbert@...dor.apana.org.au
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org
Subject: [PATCH 2/4] [IPV4] TCPMD5: Use memmove() instead of memcpy()
 because we have overlaps.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
---
 net/ipv4/tcp_ipv4.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index ff36096..652c323 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -938,10 +938,10 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
 				tp->md5sig_info->alloced4 = 0;
 			} else if (tp->md5sig_info->entries4 != i) {
 				/* Need to do some manipulation */
-				memcpy(&tp->md5sig_info->keys4[i],
-				       &tp->md5sig_info->keys4[i+1],
-				       (tp->md5sig_info->entries4 - i) *
-					sizeof(struct tcp4_md5sig_key));
+				memmove(&tp->md5sig_info->keys4[i],
+					&tp->md5sig_info->keys4[i+1],
+					(tp->md5sig_info->entries4 - i) *
+					 sizeof(struct tcp4_md5sig_key));
 			}
 			tcp_free_md5sig_pool();
 			return 0;
-- 
1.4.4.4

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