Warnings before patch:
files: ['net/ipv6/tcp_ipv6.c', 'net/ieee802154/socket.c', 'net/ipv4/datagram.c', 'net/ipv4/raw.c', 'net/core/filter.c', 'net/core/sock.c', 'net/l2tp/l2tp_ip.c', 'include/net/tcp.h', 'net/ipv6/udp.c', 'net/sctp/socket.c', 'net/ipv4/af_inet.c', 'net/mptcp/protocol.c', 'include/net/ping.h', 'include/net/ip.h', 'net/mptcp/pm_kernel.c', 'net/ipv4/ping.c', 'net/ipv4/tcp_ipv4.c', 'net/ipv6/ping.c', 'net/ipv6/af_inet6.c', 'net/ipv6/datagram.c', 'net/ipv4/udp.c', 'include/net/ipv6_stubs.h', 'net/ipv6/raw.c', 'net/phonet/socket.c', 'include/net/sock.h', 'include/net/inet_common.h', 'include/net/udp.h', 'fs/dlm/lowcomms.c', 'net/phonet/pep.c', 'include/net/ipv6.h', 'net/l2tp/l2tp_ip6.c']
Warning: include/net/sock.h:625 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:644 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:667 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1722 No description found for return value of 'lock_sock_fast'
Warning: include/net/tcp.h:2148 No description found for return value of 'tcp_write_queue_empty'
Warning: include/net/udp.h:239 No description found for return value of 'udp_csum_outgoing'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12098 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/core/sock.c:172 No description found for return value of 'sk_ns_capable'
Warning: net/core/sock.c:188 No description found for return value of 'sk_capable'
Warning: net/core/sock.c:203 No description found for return value of 'sk_net_capable'
Warning: net/core/sock.c:2297 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2474 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3130 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3257 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3286 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3404 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:240 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1901 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3193 No description found for return value of 'udp_poll'

Current warnings:
files: ['net/ipv6/tcp_ipv6.c', 'net/ieee802154/socket.c', 'net/ipv4/datagram.c', 'net/ipv4/raw.c', 'net/core/filter.c', 'net/core/sock.c', 'net/l2tp/l2tp_ip.c', 'include/net/tcp.h', 'net/ipv6/udp.c', 'net/sctp/socket.c', 'net/ipv4/af_inet.c', 'net/mptcp/protocol.c', 'include/net/ping.h', 'include/net/ip.h', 'net/mptcp/pm_kernel.c', 'net/ipv4/ping.c', 'net/ipv4/tcp_ipv4.c', 'net/ipv6/ping.c', 'net/ipv6/af_inet6.c', 'net/ipv6/datagram.c', 'net/ipv4/udp.c', 'include/net/ipv6_stubs.h', 'net/ipv6/raw.c', 'net/phonet/socket.c', 'include/net/sock.h', 'include/net/inet_common.h', 'include/net/udp.h', 'fs/dlm/lowcomms.c', 'net/phonet/pep.c', 'include/net/ipv6.h', 'net/l2tp/l2tp_ip6.c']
Warning: include/net/sock.h:625 No description found for return value of 'sk_user_data_is_nocopy'
Warning: include/net/sock.h:644 No description found for return value of '__locked_read_sk_user_data_with_flags'
Warning: include/net/sock.h:667 No description found for return value of '__rcu_dereference_sk_user_data_with_flags'
Warning: include/net/sock.h:1722 No description found for return value of 'lock_sock_fast'
Warning: include/net/tcp.h:2148 No description found for return value of 'tcp_write_queue_empty'
Warning: include/net/udp.h:239 No description found for return value of 'udp_csum_outgoing'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12099 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/core/sock.c:172 No description found for return value of 'sk_ns_capable'
Warning: net/core/sock.c:188 No description found for return value of 'sk_capable'
Warning: net/core/sock.c:203 No description found for return value of 'sk_net_capable'
Warning: net/core/sock.c:2297 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2474 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3130 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3257 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3286 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3404 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:240 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1901 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3195 No description found for return value of 'udp_poll'

Warnings before: 25 after: 25