Warnings before patch:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1504 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2434 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2448 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3541 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3679 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6299 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6433 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6664 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6687 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6764 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6787 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9170 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9193 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1504 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2434 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2448 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3541 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3679 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6299 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6433 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6664 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6687 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6764 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6787 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9170 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9193 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['kernel/trace/ftrace.c']
Warning: kernel/trace/ftrace.c:1504 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2434 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2448 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3541 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3679 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6299 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6433 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6665 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6688 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6765 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6788 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9171 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9194 No description found for return value of 'unregister_ftrace_function'
Warning: kernel/trace/ftrace.c:1504 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2434 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2448 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3541 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3679 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6299 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6433 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6665 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6688 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6765 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6788 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9171 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9194 No description found for return value of 'unregister_ftrace_function'

Warnings before: 26 after: 26