Warnings before patch:
files: ['kernel/trace/ftrace.c', 'kernel/bpf/trampoline.c', 'include/linux/ftrace.h']
Warning: include/linux/ftrace.h:913 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:955 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:980 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1010 No description found for return value of 'ftrace_modify_call'
Warning: kernel/trace/ftrace.c:1478 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2408 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2422 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3510 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3648 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6264 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6386 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6574 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6597 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6674 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6697 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9080 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9103 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['kernel/trace/ftrace.c', 'kernel/bpf/trampoline.c', 'include/linux/ftrace.h']
Warning: include/linux/ftrace.h:913 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:955 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:980 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1010 No description found for return value of 'ftrace_modify_call'
Warning: kernel/trace/ftrace.c:1478 No description found for return value of 'ftrace_hash_move'
Warning: kernel/trace/ftrace.c:2408 No description found for return value of 'ftrace_update_record'
Warning: kernel/trace/ftrace.c:2422 No description found for return value of 'ftrace_test_record'
Warning: kernel/trace/ftrace.c:3510 No description found for return value of 'ftrace_startup_subops'
Warning: kernel/trace/ftrace.c:3648 No description found for return value of 'ftrace_shutdown_subops'
Warning: kernel/trace/ftrace.c:6264 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6386 No description found for return value of 'hash_sub'
Warning: kernel/trace/ftrace.c:6574 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6597 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6674 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6697 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:9080 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:9103 No description found for return value of 'unregister_ftrace_function'

Warnings before: 17 after: 17