classify_icmp
return classify_icmp(pkt->skb, ipv4->protocol, &tuple,
return classify_icmp(pkt->skb, l4_proto, &tuple, sizeof(tuple.ipv6),
return classify_icmp(skb, ipv4.protocol, &tuple,
return classify_icmp(skb, l4_proto, &tuple, sizeof(tuple.ipv6),