Warnings before patch:
files: ['include/net/sock.h', 'net/ipv4/udp.c', 'net/ipv6/udp.c']
Warning: include/net/sock.h:643 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:662 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:685 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1742 No description found for return value of 'lock_sock_fast'
Warning: net/ipv4/udp.c:241 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1906 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3096 No description found for return value of 'udp_poll'
Warning: include/net/sock.h:643 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:662 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:685 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1742 No description found for return value of 'lock_sock_fast'
Warning: net/ipv4/udp.c:241 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1906 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3096 No description found for return value of 'udp_poll'

Current warnings:
files: ['include/net/sock.h', 'net/ipv4/udp.c', 'net/ipv6/udp.c']
Warning: include/net/sock.h:643 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:662 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:685 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1741 No description found for return value of 'lock_sock_fast'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1903 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3095 No description found for return value of 'udp_poll'
Warning: include/net/sock.h:643 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:662 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:685 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1741 No description found for return value of 'lock_sock_fast'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1903 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3095 No description found for return value of 'udp_poll'

Warnings before: 14 after: 14