From: Dmitry Popov <ixaphire@qrator.net>
Date: Sat, 7 Jun 2014 23:03:08 +0000 (+0400)
Subject: ip_tunnel: fix i_key matching in ip_tunnel_find
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~8^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ce54af1fc9d2718d46c9fd92a161379fb197266;p=pandora-kernel.git

ip_tunnel: fix i_key matching in ip_tunnel_find

Some tunnels (though only vti as for now) can use i_key just for internal use:
for example vti uses it for fwmark'ing incoming packets. So raw i_key value
shouldn't be treated as a distinguisher for them. ip_tunnel_key_match exists for
cases when we want to compare two ip_tunnel_parms' i_keys.

Example bug:
ip link add type vti ikey 1 local 1.0.0.1 remote 2.0.0.2
ip link add type vti ikey 2 local 1.0.0.1 remote 2.0.0.2
spawned two tunnels, although it doesn't make sense.

Signed-off-by: Dmitry Popov <ixaphire@qrator.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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