Extern or forward variable declaration at include/net/udp.h, line 116 References: net/ipv4/ip_forward.c, line 42 net/ipv4/ip_forward.c, line 55 net/ipv4/udp_impl.h, line 8 net/ipv4/udp_impl.h, line 9 net/ipv4/udp_impl.h, line 28 net/ipv4/udplite.c, line 22 net/ipv4/udplite.c, line 27 net/ipv6/ipv6_sockglue.c, line 156 net/ipv6/ipv6_sockglue.c, line 989 net/l2tp/l2tp_eth.c, line 93 net/l2tp/l2tp_eth.c, line 140 net/l2tp/l2tp_ip6.c, line 128 net/l2tp/l2tp_ip6.c, line 441 net/l2tp/l2tp_ip6.c, line 460 net/l2tp/l2tp_ip6.c, line 659 net/netfilter/ipvs/ip_vs_proto.c, line 240 net/netfilter/ipvs/ip_vs_proto.c, line 272 net/netfilter/ipvs/ip_vs_proto.c, line 305 net/netfilter/nf_tproxy_core.c, line 23 net/netfilter/nf_tproxy_core.c, line 36 net/netfilter/xt_tcpudp.c, line 32 net/netfilter/xt_tcpudp.c, line 65 net/netfilter/xt_tcpudp.c, line 131 net/netfilter/xt_TPROXY.c, line 51 net/netfilter/xt_TPROXY.c, line 89 net/netfilter/xt_TPROXY.c, line 121 net/netfilter/xt_TPROXY.c, line 178 net/netfilter/xt_TPROXY.c, line 186 net/netfilter/xt_TPROXY.c, line 196 net/netfilter/xt_TPROXY.c, line 241 net/netfilter/xt_TPROXY.c, line 277 net/rxrpc/ar-input.c, line 44 net/rxrpc/ar-input.c, line 144 net/rxrpc/ar-input.c, line 319 net/rxrpc/ar-input.c, line 461 net/rxrpc/ar-input.c, line 465 net/rxrpc/ar-input.c, line 530 net/rxrpc/ar-input.c, line 658 net/rxrpc/ar-input.c, line 678 net/sched/act_nat.c, line 105 net/sched/act_nat.c, line 269