Warnings before patch:
files: ['include/linux/filter.h', 'include/net/tcp.h', 'net/core/filter.c', 'net/core/sock.c', 'net/ipv4/udp.c', 'net/ipv6/udp.c', 'net/rose/rose_in.c']
Warning: include/net/tcp.h:2289 No description found for return value of 'tcp_write_queue_empty'
Warning: net/core/filter.c:134 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:585 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1079 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1384 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1430 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1551 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12116 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:2289 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2466 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3123 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3250 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3279 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3397 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:232 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1873 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3059 No description found for return value of 'udp_poll'
Warning: include/net/tcp.h:2289 No description found for return value of 'tcp_write_queue_empty'
Warning: net/core/filter.c:134 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:585 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1079 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1384 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1430 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1551 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12116 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:2289 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2466 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3123 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3250 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3279 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3397 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:232 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1873 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3059 No description found for return value of 'udp_poll'

Current warnings:
files: ['include/linux/filter.h', 'include/net/tcp.h', 'net/core/filter.c', 'net/core/sock.c', 'net/ipv4/udp.c', 'net/ipv6/udp.c', 'net/rose/rose_in.c']
Warning: include/net/tcp.h:2287 No description found for return value of 'tcp_write_queue_empty'
Warning: net/core/filter.c:133 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:582 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1076 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1381 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1427 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1548 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12113 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:2290 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2467 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3124 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3251 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3280 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3398 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:232 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1873 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3060 No description found for return value of 'udp_poll'
Warning: include/net/tcp.h:2287 No description found for return value of 'tcp_write_queue_empty'
Warning: net/core/filter.c:133 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:582 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1076 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1381 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1427 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1548 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12113 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:2290 No description found for return value of 'sk_alloc'
Warning: net/core/sock.c:2467 No description found for return value of 'sk_clone'
Warning: net/core/sock.c:3124 No description found for return value of 'skb_page_frag_refill'
Warning: net/core/sock.c:3251 No description found for return value of 'sk_wait_data'
Warning: net/core/sock.c:3280 No description found for return value of '__sk_mem_raise_allocated'
Warning: net/core/sock.c:3398 No description found for return value of '__sk_mem_schedule'
Warning: net/ipv4/udp.c:232 No description found for return value of 'udp_lib_get_port'
Warning: net/ipv4/udp.c:1873 No description found for return value of 'first_packet_length'
Warning: net/ipv4/udp.c:3060 No description found for return value of 'udp_poll'

Warnings before: 40 after: 40