net/ipv4/udp.c:241: warning: No description found for return value of 'udp_lib_get_port'
net/ipv4/udp.c:1661: 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'
net/ipv4/udp.c:241: warning: No description found for return value of 'udp_lib_get_port'
net/ipv4/udp.c:1660: warning: No description found for return value of 'first_packet_length'
net/ipv4/udp.c:2890: warning: No description found for return value of 'udp_poll'