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| author | Eric Dumazet <edumazet@google.com> | 2014-09-29 10:34:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-29 15:17:59 -0400 |
| commit | 73d3fe6d1c6d840763ceafa9afae0aaafa18c4b5 (patch) | |
| tree | 338dec69893e9e9b6726f314a2d5e7e4e6b0ba1c | |
| parent | 2c1a4311b61072afe2309d4152a7993e92caa41c (diff) | |
| download | blackbird-op-linux-73d3fe6d1c6d840763ceafa9afae0aaafa18c4b5.tar.gz blackbird-op-linux-73d3fe6d1c6d840763ceafa9afae0aaafa18c4b5.zip | |
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>
| -rw-r--r-- | net/core/skbuff.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index da1378a3e2c7..8d289697cc7a 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3152,6 +3152,9 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb) NAPI_GRO_CB(skb)->free = NAPI_GRO_FREE_STOLEN_HEAD; goto done; } + /* switch back to head shinfo */ + pinfo = skb_shinfo(p); + if (pinfo->frag_list) goto merge; if (skb_gro_len(p) != pinfo->gso_size) |
