ip_vs_fill_iph_skb_icmp
if (!ip_vs_fill_iph_skb_icmp(AF_INET6, skb, ipvsh->len + sizeof(_icmph),
ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, !tunnel, &ciph);
if (!ip_vs_fill_iph_skb_icmp(AF_INET6, skb, offset, true, &ciph))
ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, true, &ciph);