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veth: Dont kfree_skb() after dev_forward_skb()

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In case of congestion, netif_rx() frees the skb, so we must assume
dev_forward_skb() also consume skb.

Bug introduced by commit 445409602c
(veth: move loopback logic to common location)

We must change dev_forward_skb() to always consume skb, and veth to not
double free it.

Bug report : http://marc.info/?l=linux-netdev&m=127310770900442&w=3

Reported-by: Martín Ferrari <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2010-05-06 00:53:53 -07:00 • committed by David S. Miller
commit 6ec82562ff
2 changed files with 5 additions and 7 deletions
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1
drivers/net/veth.c
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@ -187,7 +187,6 @@ tx_drop:
return NETDEV_TX_OK;
rx_drop:
kfree_skb(skb);
rcv_stats->rx_dropped++;
return NETDEV_TX_OK;
}