From: Timo Teras <timo.teras@iki.fi>
Date: Tue, 20 Jan 2009 01:22:12 +0000 (-0800)
Subject: gre: strict physical device binding
X-Git-Tag: v2.6.30-rc1~662^2~937
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=749c10f931923451a4c59b4435d182aa9ae27a4f;p=pandora-kernel.git

gre: strict physical device binding

Check the device on receive path and allow otherwise identical devices
as long as the physical device differs.

This is useful for NBMA tunnels, where you want to use different gre IP
for each public IP available via different physical devices.

Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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