Warnings before patch:
files: ['Documentation/networking/net_cachelines/tcp_sock.rst', 'include/linux/tcp.h', 'net/core/filter.c', 'net/ipv4/tcp_minisocks.c', 'net/ipv4/tcp_output.c']
Warning: include/linux/tcp.h:59 No description found for return value of 'skb_tcp_all_headers'
Warning: include/linux/tcp.h:74 No description found for return value of 'skb_inner_tcp_all_headers'
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:12124 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/tcp_output.c:3937 No description found for return value of 'tcp_make_synack'
Warning: include/linux/tcp.h:59 No description found for return value of 'skb_tcp_all_headers'
Warning: include/linux/tcp.h:74 No description found for return value of 'skb_inner_tcp_all_headers'
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:12124 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/tcp_output.c:3937 No description found for return value of 'tcp_make_synack'

Current warnings:
files: ['Documentation/networking/net_cachelines/tcp_sock.rst', 'include/linux/tcp.h', 'net/core/filter.c', 'net/ipv4/tcp_minisocks.c', 'net/ipv4/tcp_output.c']
Warning: include/linux/tcp.h:59 No description found for return value of 'skb_tcp_all_headers'
Warning: include/linux/tcp.h:74 No description found for return value of 'skb_inner_tcp_all_headers'
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:12128 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/tcp_output.c:3940 No description found for return value of 'tcp_make_synack'
Warning: include/linux/tcp.h:59 No description found for return value of 'skb_tcp_all_headers'
Warning: include/linux/tcp.h:74 No description found for return value of 'skb_inner_tcp_all_headers'
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:12128 No description found for return value of 'bpf_skb_meta_pointer'
Warning: net/ipv4/tcp_output.c:3940 No description found for return value of 'tcp_make_synack'

Warnings before: 20 after: 20