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authorAjit Khaparde <ajitkhaparde@gmail.com>2010-02-16 20:25:43 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-17 15:59:47 -0800
commite76b69cc0133952c98aa1ad6330cacacd269fd64 (patch)
treed06aa21c325692e8e97b6d73f34bc05319a586cf /Documentation/unshare.txt
parent1d4bd947c501ea1da81300280fb6aeec2cca9335 (diff)
net: bug fix for vlan + gro issue
Traffic (tcp) doesnot start on a vlan interface when gro is enabled. Even the tcp handshake was not taking place. This is because, the eth_type_trans call before the netif_receive_skb in napi_gro_finish() resets the skb->dev to napi->dev from the previously set vlan netdev interface. This causes the ip_route_input to drop the incoming packet considering it as a packet coming from a martian source. I could repro this on 2.6.32.7 (stable) and 2.6.33-rc7. With this fix, the traffic starts and the test runs fine on both vlan and non-vlan interfaces. CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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