Warnings before patch:
files: ['net/ipv4/tcp_input.c', 'include/net/tcp.h', 'net/mptcp/protocol.c']
<parse fail>: Warning: include/net/tcp.h:2153 No description found for return value of 'tcp_write_queue_empty'
<parse fail>: Warning: net/ipv4/tcp_input.c:4977 No description found for return value of 'tcp_try_coalesce'
Warning: include/net/tcp.h:2153 No description found for return value of 'tcp_write_queue_empty'
Warning: net/ipv4/tcp_input.c:4977 No description found for return value of 'tcp_try_coalesce'

Current warnings:
files: ['net/ipv4/tcp_input.c', 'include/net/tcp.h', 'net/mptcp/protocol.c']
<parse fail>: Warning: include/net/tcp.h:2153 No description found for return value of 'tcp_write_queue_empty'
<parse fail>: Warning: net/ipv4/tcp_input.c:4978 No description found for return value of 'tcp_try_coalesce'
Warning: include/net/tcp.h:2153 No description found for return value of 'tcp_write_queue_empty'
Warning: net/ipv4/tcp_input.c:4978 No description found for return value of 'tcp_try_coalesce'

Warnings before: 2 after: 2