Hello,
On Thu, 5 May 2016, David Ahern wrote:
> On 5/5/16 2:41 AM, Julian Anastasov wrote:
> > > + IPCB(skb)->iif = skb->skb_iif;
> >
> > For loopback traffic (including looped back multicast)
> > this is now a zero :( Can inet_iif be moved to ip_rcv_finish
> > instead? Still, we spend cycles in fast path in case nobody
> > listens for such info.
>
> Why is that? skb_iif is set to skb->dev->index in __netif_receive_skb_core and
> ip_rcv is called it. Is there another path to it?
You are right, it is 0 only for the output path.
Regards
--
Julian Anastasov <j...@ssi.bg>
