From f993bc25e5196e60514c216d0bca0f600de64af8 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 20 Oct 2014 13:49:18 +0200
Subject: [PATCH] net: core: handle encapsulation offloads when computing
 segment lengths

if ->encapsulation is set we have to use inner_tcp_hdrlen and add the
size of the inner network headers too.

This is 'mostly harmless'; tbf might send skb that is slightly over
quota or drop skb even if it would have fit.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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