ip6t_ext_hdr 76 net/ipv6/netfilter/ip6t_LOG.c while (currenthdr != NEXTHDR_NONE && ip6t_ext_hdr(currenthdr)) { ip6t_ext_hdr 48 net/ipv6/netfilter/ip6t_ipv6header.c while (ip6t_ext_hdr(nexthdr)) {