==========
kdoc - FAILED

Warnings before patch:
files: ['include/linux/ftrace.h', 'kernel/trace/ftrace.c']
Warning: include/linux/ftrace.h:154 cannot understand function prototype: 'struct ftrace_regs'
Warning: include/linux/ftrace.h:919 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:961 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:986 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1016 No description found for return value of 'ftrace_modify_call'
Warning: include/linux/ftrace.h:1296 function parameter 'kill_ftrace_graph' not described in 'DECLARE_STATIC_KEY_FALSE'
Warning: include/linux/ftrace.h:1296 expecting prototype for ftrace_graph_is_dead(). Prototype was for DECLARE_STATIC_KEY_FALSE() instead
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:6269 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6292 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6369 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6392 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8775 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8798 No description found for return value of 'unregister_ftrace_function'
Warning: include/linux/ftrace.h:919 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:961 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:986 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1016 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:6269 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6292 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6369 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6392 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8775 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8798 No description found for return value of 'unregister_ftrace_function'

Current warnings:
files: ['include/linux/ftrace.h', 'kernel/trace/ftrace.c']
Warning: include/linux/ftrace.h:154 cannot understand function prototype: 'struct ftrace_regs'
Warning: include/linux/ftrace.h:926 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:968 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:993 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1023 No description found for return value of 'ftrace_modify_call'
Warning: include/linux/ftrace.h:1303 function parameter 'kill_ftrace_graph' not described in 'DECLARE_STATIC_KEY_FALSE'
Warning: include/linux/ftrace.h:1303 expecting prototype for ftrace_graph_is_dead(). Prototype was for DECLARE_STATIC_KEY_FALSE() instead
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:6265 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6397 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6420 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6497 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6520 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8903 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8926 No description found for return value of 'unregister_ftrace_function'
Warning: include/linux/ftrace.h:926 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:968 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:993 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:1023 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:6265 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6397 No description found for return value of 'ftrace_set_filter_ip'
Warning: kernel/trace/ftrace.c:6420 No description found for return value of 'ftrace_set_filter_ips'
Warning: kernel/trace/ftrace.c:6497 No description found for return value of 'ftrace_set_filter'
Warning: kernel/trace/ftrace.c:6520 No description found for return value of 'ftrace_set_notrace'
Warning: kernel/trace/ftrace.c:8903 No description found for return value of 'register_ftrace_function'
Warning: kernel/trace/ftrace.c:8926 No description found for return value of 'unregister_ftrace_function'

Warnings before: 33 after: 35 (add: 2)

New warnings added:
Warning: kernel/trace/ftrace.c:6265 No description found for return value of 'hash_add'
Warning: kernel/trace/ftrace.c:6265 No description found for return value of 'hash_add'
Per-file breakdown:
     2 kernel/trace/ftrace.c