On 12/1/15 6:58 PM, Andi Kleen wrote:
- skb_iff is either skb->dev->iff or 0. so it could be replaced with a single bit flag for the 0 case.... and that one wouldn't work on ingress.Please explain.
skb->dev is dropped fairly early in the Rx path. skb_iif is needed for example for IP_CMSG_PKTINFO.
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