Warnings before patch:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1498 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2428 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2442 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3530 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3668 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6289 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6312 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6389 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6412 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8795 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8818 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1498 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2428 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2442 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3530 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3668 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6289 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6312 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6389 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6412 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8795 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8818 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1505 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2435 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2449 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3537 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3675 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6296 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6319 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6396 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6419 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8802 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8825 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1505 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2435 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2449 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3537 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3675 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6296 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6319 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6396 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6419 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8802 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8825 No description found for return value of 'unregister_ftrace_function'

Warnings before: 22 after: 22