gro: fix aggregation for skb using frag_list
commit73d3fe6d1c6d840763ceafa9afae0aaafa18c4b5
authorEric Dumazet <edumazet@google.com>
Mon, 29 Sep 2014 17:34:29 +0000 (29 10:34 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 29 Sep 2014 19:17:59 +0000 (29 15:17 -0400)
tree338dec69893e9e9b6726f314a2d5e7e4e6b0ba1c
parent2c1a4311b61072afe2309d4152a7993e92caa41c
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>
net/core/skbuff.c