tree ab144777bc45ac1c40c5fad94198494198adda7c
parent d6fe5f4eccc2a7d2ad885ecb26a192b08dcc7cd1
author Steffen Klassert <steffen.klassert@secunet.com> 1308704677 +0000
committer David S. Miller <davem@davemloft.net> 1309232065 -0700

ipv4: Fix packet size calculation in __ip_append_data

Git commit 59104f06 (ip: take care of last fragment in ip_append_data)
added a check to see if we exceed the mtu when we add trailer_len.
However, the mtu is already subtracted by the trailer length when the
xfrm transfomation bundles are set up. So IPsec packets with mtu
size get fragmented, or if the DF bit is set the packets will not
be send even though they match the mtu perfectly fine. This patch
actually reverts commit 59104f06.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>