From: Tom Herbert <therbert@google.com>
Date: Wed, 17 Sep 2014 19:26:01 +0000 (-0700)
Subject: gre: Setup and TX path for gre/UDP foo-over-udp encapsulation
X-Git-Tag: fixes-against-v3.18-rc2~81^2~30^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4565e9919cda747815547e2e5d7b78f15efbffdf;p=pandora-kernel.git

gre: Setup and TX path for gre/UDP foo-over-udp encapsulation

Added netlink attrs to configure FOU encapsulation for GRE, netlink
handling of these flags, and properly adjust MTU for encapsulation.
ip_tunnel_encap is called from ip_tunnel_xmit to actually perform FOU
encapsulation.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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