UDP_CORK 2545 net/ipv4/udp.c case UDP_CORK: UDP_CORK 2671 net/ipv4/udp.c case UDP_CORK: UDP_CORK 236 tools/testing/selftests/net/msg_zerocopy.c do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 1); UDP_CORK 254 tools/testing/selftests/net/msg_zerocopy.c do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 0);