Extern or forward variable declaration at include/net/ip.h, line 85 References: drivers/net/hamradio/bpqether.c, line 97 drivers/net/hamradio/bpqether.c, line 100 drivers/net/hamradio/bpqether.c, line 179 include/net/ip.h, line 85 include/net/ip.h, line 99 net/ax25/af_ax25.c, line 1971 net/batman-adv/main.c, line 321 net/batman-adv/main.c, line 370 net/batman-adv/main.c, line 414 net/batman-adv/main.c, line 418 net/batman-adv/main.c, line 421 net/batman-adv/main.c, line 425 net/batman-adv/main.c, line 427 net/core/dev.c, line 362 net/core/dev.c, line 383 net/core/dev.c, line 406 net/core/dev.c, line 409 net/core/dev.c, line 438 net/core/dev.c, line 1707 net/core/dev.c, line 1716 net/core/dev.c, line 1736 net/core/dev.c, line 1738 net/core/dev.c, line 3385 net/core/dev.c, line 3484 net/dccp/ccids/ccid2.c, line 489 net/dccp/ccids/ccid3.c, line 465 net/dccp/ccids/ccid3.c, line 475 net/ipv4/af_inet.c, line 1665 net/ipv4/arp.c, line 942 net/ipv4/arp.c, line 1273 net/ipv4/ip_input.c, line 376 net/ipv4/ipconfig.c, line 476 net/ipv4/ipconfig.c, line 478 net/ipv4/ipconfig.c, line 497 net/ipv4/ipconfig.c, line 650 net/ipv4/ipconfig.c, line 652 net/ipv4/ipconfig.c, line 948 net/ipv6/af_inet6.c, line 704 net/ipv6/ip6_input.c, line 65 net/packet/af_packet.c, line 191 net/packet/af_packet.c, line 1195 net/packet/af_packet.c, line 1274 net/packet/af_packet.c, line 1385 net/packet/af_packet.c, line 1606 net/packet/af_packet.c, line 1718