Extern or forward variable declaration include/linux/net.h, line 92 [usage...] include/linux/syscalls.h, line 27 [usage...] Structure include/linux/socket.h, line 53 [usage...] Local variable net/rxrpc/connection.c, line 622 [usage...] net/rxrpc/transport.c, line 613 [usage...] net/sctp/ulpevent.c, line 750 [usage...]