nf_conntrack_icmpv6_error 89 include/net/netfilter/nf_conntrack_l4proto.h int nf_conntrack_icmpv6_error(struct nf_conn *tmpl, nf_conntrack_icmpv6_error 1598 net/netfilter/nf_conntrack_core.c ret = nf_conntrack_icmpv6_error(tmpl, skb, dataoff, state);