include/net/udp.h:132: warning: No description found for return value of 'udp_csum_outgoing' net/ipv4/udp.c:243: warning: No description found for return value of 'udp_lib_get_port' net/ipv4/udp.c:1664: warning: No description found for return value of 'first_packet_length' net/ipv4/udp.c:2894: warning: No description found for return value of 'udp_poll' include/net/udp.h:151: warning: No description found for return value of 'udp_csum_outgoing' net/ipv4/udp.c:243: warning: No description found for return value of 'udp_lib_get_port' net/ipv4/udp.c:1662: warning: No description found for return value of 'first_packet_length' net/ipv4/udp.c:2891: warning: No description found for return value of 'udp_poll'