From: Tom Herbert <therbert@google.com>
Date: Mon, 8 Sep 2014 15:29:12 +0000 (-0700)
Subject: net: Fix GRE RX to use skb_transport_header for GRE header offset
X-Git-Tag: omap-for-v3.19/prcm-cleanup~78^2~137
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e701f16982a9d15488a5aa8c7f5c41444b1de67;p=pandora-kernel.git

net: Fix GRE RX to use skb_transport_header for GRE header offset

GRE assumes that the GRE header is at skb_network_header +
ip_hrdlen(skb). It is more general to use skb_transport_header
and this allows the possbility of inserting additional header
between IP and GRE (which is what we will done in Generic UDP
Encapsulation for GRE).

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

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