Warnings before patch: files: ['include/net/tcp.h', 'net/ipv4/tcp_output.c'] Warning: include/net/tcp.h:2194 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_output.c:3902 No description found for return value of 'tcp_make_synack' Warning: include/net/tcp.h:2194 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_output.c:3902 No description found for return value of 'tcp_make_synack' Current warnings: files: ['include/net/tcp.h', 'net/ipv4/tcp_output.c'] Warning: include/net/tcp.h:2195 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_output.c:3902 No description found for return value of 'tcp_make_synack' Warning: include/net/tcp.h:2195 No description found for return value of 'tcp_write_queue_empty' Warning: net/ipv4/tcp_output.c:3902 No description found for return value of 'tcp_make_synack' Warnings before: 4 after: 4