Warnings before patch:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1472 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2402 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2416 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3504 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3642 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6263 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6286 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6363 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6386 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8769 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8792 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1472 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2402 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2416 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3504 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3642 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6263 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6286 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6363 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6386 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8769 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8792 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1479 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2409 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2423 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3511 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3649 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6270 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6293 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6370 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6393 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8776 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8799 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1479 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2409 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2423 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3511 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3649 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6270 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6293 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6370 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6393 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8776 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8799 No description found for return value of 'unregister_ftrace_function'

Warnings before: 22 after: 22