From: Tom Herbert <therbert@google.com>
Date: Fri, 3 Oct 2014 22:48:07 +0000 (-0700)
Subject: ip_tunnel: Account for secondary encapsulation header in max_headroom
X-Git-Tag: omap-for-v3.19/prcm-cleanup~141^2~49^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7371e0221c7721a1486fef745abaa8ae84571621;p=pandora-kernel.git

ip_tunnel: Account for secondary encapsulation header in max_headroom

When adjusting max_header for the tunnel interface based on egress
device we need to account for any extra bytes in secondary encapsulation
(e.g. FOU).

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