From: Eric Dumazet <edumazet@google.com>
Date: Mon, 29 Sep 2014 17:34:29 +0000 (-0700)
Subject: gro: fix aggregation for skb using frag_list
X-Git-Tag: fixes-for-v3.18-merge-window~53^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73d3fe6d1c6d840763ceafa9afae0aaafa18c4b5;p=pandora-kernel.git

gro: fix aggregation for skb using frag_list

In commit 8a29111c7ca6 ("net: gro: allow to build full sized skb")
I added a regression for linear skb that traditionally force GRO
to use the frag_list fallback.

Erez Shitrit found that at most two segments were aggregated and
the "if (skb_gro_len(p) != pinfo->gso_size)" test was failing.

This is because pinfo at this spot still points to the last skb in the
chain, instead of the first one, where we find the correct gso_size
information.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 8a29111c7ca6 ("net: gro: allow to build full sized skb")
Reported-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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