From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 24 Oct 2011 05:52:35 +0000 (-0400)
Subject: tcp: md5: dont write skb head in tcp_md5_hash_header()
X-Git-Tag: v3.2-rc1~182^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca35a0ef85e8ed6df6d5ab01fb6c3530cca0c469;p=pandora-kernel.git

tcp: md5: dont write skb head in tcp_md5_hash_header()

tcp_md5_hash_header() writes into skb header a temporary zero value,
this might confuse other users of this area.

Since tcphdr is small (20 bytes), copy it in a temporary variable and
make the change in the copy.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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