On Tue, 2013-05-21 at 19:02 +0200, Pekka Riikonen wrote:

> Maybe even that's not needed.  Couldn't skb->queue_mapping give the 
> correct NAPI instance in multiqueue nics?  The NAPI instance could be made 
> easily available from skb->dev.  In any case an index is much better than 
> a new pointer.

We do not keep skb->dev information once a packet leaves the rcu
protected region.

Once packet is queued to tcp input queues, skb->dev is NULL.




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