net: Checks skb_dst to be NULL in inet_iif
In inet_iif check if skb_rtable is NULL for the skb and return skb->skb_iif if it is. This change allows inet_iif to be called before the dst information has been set in the skb (e.g. when doing socket based UDP GRO). Signed-off-by:Tom Herbert <tom@herbertland.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
1fbbe1a8
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