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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2007-11-21 02:30:31 +0100
committerDavid S. Miller <davem@davemloft.net>2007-11-21 02:30:31 +0100
commit354faf0977397cea382e9e9c214fd028377d277b (patch)
tree5b3082736caaf676dcee2618db8cfb127a213f55 /net
parent[IPV4] TCPMD5: Omit redundant NULL check for kfree() argument. (diff)
downloadlinux-354faf0977397cea382e9e9c214fd028377d277b.tar.xz
linux-354faf0977397cea382e9e9c214fd028377d277b.zip
[IPV4] TCPMD5: Use memmove() instead of memcpy() because we have overlaps.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_ipv4.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index ff360968b910..652c32368ccc 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;