Warnings before patch: files: ['include/net/tcp_ecn.h', 'net/ipv4/tcp_cong.c', 'net/ipv4/tcp_input.c', 'include/net/inet_ecn.h', 'include/net/tcp.h'] Warning: include/net/tcp.h:2156 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_input.c:5008 No description found for return value of 'tcp_try_coalesce' Current warnings: files: ['include/net/tcp_ecn.h', 'net/ipv4/tcp_cong.c', 'net/ipv4/tcp_input.c', 'include/net/inet_ecn.h', 'include/net/tcp.h'] Warning: include/net/tcp.h:2175 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_input.c:5008 No description found for return value of 'tcp_try_coalesce' Warnings before: 2 after: 2