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net: Introduce skb_tunnel_rx() helper
skb rxhash should be cleared when a skb is handled by a tunnel before being delivered again, so that correct packet steering can take place. There are other cleanups and accounting that we can factorize in a new helper, skb_tunnel_rx() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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7 changed files with 34 additions and 34 deletions
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@ -226,6 +226,26 @@ static inline void skb_dst_force(struct sk_buff *skb)
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}
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}
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/**
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* skb_tunnel_rx - prepare skb for rx reinsert
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* @skb: buffer
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* @dev: tunnel device
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*
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* After decapsulation, packet is going to re-enter (netif_rx()) our stack,
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* so make some cleanups, and perform accounting.
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*/
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static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
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{
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skb->dev = dev;
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/* TODO : stats should be SMP safe */
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dev->stats.rx_packets++;
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dev->stats.rx_bytes += skb->len;
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skb->rxhash = 0;
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skb_dst_drop(skb);
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nf_reset(skb);
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}
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/* Children define the path of the packet through the
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* Linux networking. Thus, destinations are stackable.
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*/
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