Warnings before patch:
files: ['net/ipv4/tcp_input.c', 'net/ipv4/tcp.c', 'net/ipv4/ip_fragment.c', 'net/ipv4/tcp_output.c', 'net/ipv4/syncookies.c', 'net/ipv4/netfilter/arp_tables.c']
Warning: net/ipv4/tcp.c:816 No description found for return value of 'tcp_splice_read'
Warning: net/ipv4/tcp_input.c:5000 No description found for return value of 'tcp_try_coalesce'
Warning: net/ipv4/tcp_output.c:3899 No description found for return value of 'tcp_make_synack'

Current warnings:
files: ['net/ipv4/tcp_input.c', 'net/ipv4/tcp.c', 'net/ipv4/ip_fragment.c', 'net/ipv4/tcp_output.c', 'net/ipv4/syncookies.c', 'net/ipv4/netfilter/arp_tables.c']
Warning: net/ipv4/tcp.c:816 No description found for return value of 'tcp_splice_read'
Warning: net/ipv4/tcp_input.c:5000 No description found for return value of 'tcp_try_coalesce'
Warning: net/ipv4/tcp_output.c:3899 No description found for return value of 'tcp_make_synack'

Warnings before: 3 after: 3