Warnings before patch:
files: ['include/net/netfilter/nf_tables.h', 'include/net/netfilter/nft_fib.h', 'include/net/netfilter/nft_meta.h', 'net/bridge/netfilter/nft_meta_bridge.c', 'net/bridge/netfilter/nft_reject_bridge.c', 'net/ipv4/netfilter/nft_dup_ipv4.c', 'net/ipv4/netfilter/nft_fib_ipv4.c', 'net/ipv4/netfilter/nft_reject_ipv4.c', 'net/ipv6/netfilter/nft_dup_ipv6.c', 'net/ipv6/netfilter/nft_fib_ipv6.c', 'net/ipv6/netfilter/nft_reject_ipv6.c', 'net/netfilter/nf_tables_api.c', 'net/netfilter/nft_bitwise.c', 'net/netfilter/nft_byteorder.c', 'net/netfilter/nft_cmp.c', 'net/netfilter/nft_compat.c', 'net/netfilter/nft_connlimit.c', 'net/netfilter/nft_counter.c', 'net/netfilter/nft_ct.c', 'net/netfilter/nft_dup_netdev.c', 'net/netfilter/nft_dynset.c', 'net/netfilter/nft_exthdr.c', 'net/netfilter/nft_fib.c', 'net/netfilter/nft_fib_inet.c', 'net/netfilter/nft_fib_netdev.c', 'net/netfilter/nft_flow_offload.c', 'net/netfilter/nft_fwd_netdev.c', 'net/netfilter/nft_hash.c', 'net/netfilter/nft_immediate.c', 'net/netfilter/nft_last.c', 'net/netfilter/nft_limit.c', 'net/netfilter/nft_log.c', 'net/netfilter/nft_lookup.c', 'net/netfilter/nft_masq.c', 'net/netfilter/nft_meta.c', 'net/netfilter/nft_nat.c', 'net/netfilter/nft_numgen.c', 'net/netfilter/nft_objref.c', 'net/netfilter/nft_osf.c', 'net/netfilter/nft_payload.c', 'net/netfilter/nft_queue.c', 'net/netfilter/nft_quota.c', 'net/netfilter/nft_range.c', 'net/netfilter/nft_redir.c', 'net/netfilter/nft_reject_inet.c', 'net/netfilter/nft_reject_netdev.c', 'net/netfilter/nft_rt.c', 'net/netfilter/nft_socket.c', 'net/netfilter/nft_synproxy.c', 'net/netfilter/nft_tproxy.c', 'net/netfilter/nft_tunnel.c', 'net/netfilter/nft_xfrm.c']
Warning: include/net/netfilter/nf_tables.h:308 struct member 'buf' not described in 'nft_set_elem'
Warning: net/netfilter/nf_tables_api.c:3300 No description found for return value of 'nft_register_expr'
Warning: net/netfilter/nf_tables_api.c:7975 No description found for return value of 'nft_register_obj'
Warning: net/netfilter/nf_tables_api.c:11480 No description found for return value of 'nft_parse_u32_check'
Warning: net/netfilter/nf_tables_api.c:11523 No description found for return value of 'nft_dump_register'
Warning: net/netfilter/nf_tables_api.c:11803 No description found for return value of 'nft_data_init'
Warning: include/net/netfilter/nf_tables.h:308 struct member 'buf' not described in 'nft_set_elem'
Warning: net/netfilter/nf_tables_api.c:3300 No description found for return value of 'nft_register_expr'
Warning: net/netfilter/nf_tables_api.c:7975 No description found for return value of 'nft_register_obj'
Warning: net/netfilter/nf_tables_api.c:11480 No description found for return value of 'nft_parse_u32_check'
Warning: net/netfilter/nf_tables_api.c:11523 No description found for return value of 'nft_dump_register'
Warning: net/netfilter/nf_tables_api.c:11803 No description found for return value of 'nft_data_init'

Current warnings:
files: ['include/net/netfilter/nf_tables.h', 'include/net/netfilter/nft_fib.h', 'include/net/netfilter/nft_meta.h', 'net/bridge/netfilter/nft_meta_bridge.c', 'net/bridge/netfilter/nft_reject_bridge.c', 'net/ipv4/netfilter/nft_dup_ipv4.c', 'net/ipv4/netfilter/nft_fib_ipv4.c', 'net/ipv4/netfilter/nft_reject_ipv4.c', 'net/ipv6/netfilter/nft_dup_ipv6.c', 'net/ipv6/netfilter/nft_fib_ipv6.c', 'net/ipv6/netfilter/nft_reject_ipv6.c', 'net/netfilter/nf_tables_api.c', 'net/netfilter/nft_bitwise.c', 'net/netfilter/nft_byteorder.c', 'net/netfilter/nft_cmp.c', 'net/netfilter/nft_compat.c', 'net/netfilter/nft_connlimit.c', 'net/netfilter/nft_counter.c', 'net/netfilter/nft_ct.c', 'net/netfilter/nft_dup_netdev.c', 'net/netfilter/nft_dynset.c', 'net/netfilter/nft_exthdr.c', 'net/netfilter/nft_fib.c', 'net/netfilter/nft_fib_inet.c', 'net/netfilter/nft_fib_netdev.c', 'net/netfilter/nft_flow_offload.c', 'net/netfilter/nft_fwd_netdev.c', 'net/netfilter/nft_hash.c', 'net/netfilter/nft_immediate.c', 'net/netfilter/nft_last.c', 'net/netfilter/nft_limit.c', 'net/netfilter/nft_log.c', 'net/netfilter/nft_lookup.c', 'net/netfilter/nft_masq.c', 'net/netfilter/nft_meta.c', 'net/netfilter/nft_nat.c', 'net/netfilter/nft_numgen.c', 'net/netfilter/nft_objref.c', 'net/netfilter/nft_osf.c', 'net/netfilter/nft_payload.c', 'net/netfilter/nft_queue.c', 'net/netfilter/nft_quota.c', 'net/netfilter/nft_range.c', 'net/netfilter/nft_redir.c', 'net/netfilter/nft_reject_inet.c', 'net/netfilter/nft_reject_netdev.c', 'net/netfilter/nft_rt.c', 'net/netfilter/nft_socket.c', 'net/netfilter/nft_synproxy.c', 'net/netfilter/nft_tproxy.c', 'net/netfilter/nft_tunnel.c', 'net/netfilter/nft_xfrm.c']
Warning: include/net/netfilter/nf_tables.h:297 struct member 'buf' not described in 'nft_set_elem'
Warning: net/netfilter/nf_tables_api.c:3248 No description found for return value of 'nft_register_expr'
Warning: net/netfilter/nf_tables_api.c:7923 No description found for return value of 'nft_register_obj'
Warning: net/netfilter/nf_tables_api.c:11413 No description found for return value of 'nft_parse_u32_check'
Warning: net/netfilter/nf_tables_api.c:11456 No description found for return value of 'nft_dump_register'
Warning: net/netfilter/nf_tables_api.c:11736 No description found for return value of 'nft_data_init'
Warning: include/net/netfilter/nf_tables.h:297 struct member 'buf' not described in 'nft_set_elem'
Warning: net/netfilter/nf_tables_api.c:3248 No description found for return value of 'nft_register_expr'
Warning: net/netfilter/nf_tables_api.c:7923 No description found for return value of 'nft_register_obj'
Warning: net/netfilter/nf_tables_api.c:11413 No description found for return value of 'nft_parse_u32_check'
Warning: net/netfilter/nf_tables_api.c:11456 No description found for return value of 'nft_dump_register'
Warning: net/netfilter/nf_tables_api.c:11736 No description found for return value of 'nft_data_init'

Warnings before: 12 after: 12