Function prototype or declaration at include/linux/netfilter.h, line 186 References: include/linux/netfilter.h, line 186 net/bridge/netfilter/ebtables.c, line 2422 net/ipv4/netfilter/arp_tables.c, line 1609 net/ipv4/netfilter/ip_tables.c, line 1899 net/ipv6/netfilter/ip6_tables.c, line 1910 net/netfilter/ipset/ip_set_core.c, line 2440 net/netfilter/ipvs/ip_vs_ctl.c, line 4200 net/netfilter/nf_conntrack_proto.c, line 649 net/netfilter/nf_conntrack_proto.c, line 654