udp_lib_close    2778 net/ipv4/udp.c 	.close			= udp_lib_close,
udp_lib_close      40 net/ipv4/udplite.c 	.close		   = udp_lib_close,
udp_lib_close    1657 net/ipv6/udp.c 	.close			= udp_lib_close,
udp_lib_close      37 net/ipv6/udplite.c 	.close		   = udp_lib_close,