From 91657eafb64b4cb53ec3a2fbc4afc3497f735788 Mon Sep 17 00:00:00 2001
From: Benjamin Poirier <bpoirier@suse.de>
Date: Thu, 24 May 2012 11:32:38 +0000
Subject: [PATCH] xfrm: take net hdr len into account for esp payload size
 calculation

Corrects the function that determines the esp payload size. The calculations
done in esp{4,6}_get_mtu() lead to overlength frames in transport mode for
certain mtu values and suboptimal frames for others.

According to what is done, mainly in esp{,6}_output() and tcp_mtu_to_mss(),
net_header_len must be taken into account before doing the alignment
calculation.

Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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