Warnings before patch:
files: ['include/net/udp.h', 'net/core/filter.c', 'net/ipv4/udp.c', 'net/ipv4/udp_diag.c', 'net/ipv4/udp_offload.c']
Warning: include/net/udp.h:234 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:1081 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1386 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1432 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1553 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1902 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3094 No description found for return value of 'udp_poll'
Warning: include/net/udp.h:234 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:1081 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1386 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1432 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1553 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1902 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3094 No description found for return value of 'udp_poll'

Current warnings:
files: ['include/net/udp.h', 'net/core/filter.c', 'net/ipv4/udp.c', 'net/ipv4/udp_diag.c', 'net/ipv4/udp_offload.c']
Warning: include/net/udp.h:234 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:1081 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1386 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1432 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1553 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1891 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3087 No description found for return value of 'udp_poll'
Warning: include/net/udp.h:234 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:1081 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1386 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1432 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1553 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/udp.c:236 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1891 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3087 No description found for return value of 'udp_poll'

Warnings before: 22 after: 22