Extern or forward variable declaration fs/proc/internal.h, line 18 [usage...] include/linux/ipc_namespace.h, line 149 [usage...] include/linux/sysctl.h, line 34 [usage...] include/net/net_namespace.h, line 38 [usage...] include/net/net_namespace.h, line 322 [usage...] include/net/netns/conntrack.h, line 11 [usage...] include/net/netns/core.h, line 4 [usage...] include/net/netns/ipv4.h, line 13 [usage...] include/net/netns/ipv6.h, line 11 [usage...] include/net/netns/mpls.h, line 9 [usage...] include/net/netns/sctp.h, line 7 [usage...] include/net/netns/unix.h, line 7 [usage...] include/net/netns/xfrm.h, line 11 [usage...] Structure include/linux/sysctl.h, line 125 [usage...] Class, struct, or union member include/net/netns/conntrack.h, line 16 [usage...] include/net/netns/conntrack.h, line 62 [usage...]