Warnings before patch:
files: ['include/linux/ftrace.h', 'kernel/trace/Kconfig', 'kernel/trace/ftrace.c']
Warning: include/linux/ftrace.h:878 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:920 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:945 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:975 No description found for return value of 'ftrace_modify_call'
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:6262 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6285 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6362 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6385 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8768 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8791 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['include/linux/ftrace.h', 'kernel/trace/Kconfig', 'kernel/trace/ftrace.c']
Warning: include/linux/ftrace.h:911 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:953 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:978 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1008 No description found for return value of 'ftrace_modify_call'
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:6277 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6300 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6377 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6400 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8783 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8806 No description found for return value of 'unregister_ftrace_function'

Warnings before: 15 after: 15