linux-kernel - Re: [PATCH 02/11] reboot: reboot, not shutdown, on hw_protection

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Message-ID: <202412201310.JWkUQ9qf-lkp@intel.com>
Date: Fri, 20 Dec 2024 14:12:13 +0800
From: kernel test robot <lkp@...el.com>
To: Ahmad Fatoum <a.fatoum@...gutronix.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Fabio Estevam <festevam@...x.de>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
	Jonathan Corbet <corbet@....net>, Serge Hallyn <serge@...lyn.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Benson Leung <bleung@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>,
	Guenter Roeck <groeck@...omium.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	chrome-platform@...ts.linux.dev, devicetree@...r.kernel.org,
	kernel@...gutronix.de, Ahmad Fatoum <a.fatoum@...gutronix.de>
Subject: Re: [PATCH 02/11] reboot: reboot, not shutdown, on
 hw_protection_reboot timeout

Hi Ahmad,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8]

url:    https://github.com/intel-lab-lkp/linux/commits/Ahmad-Fatoum/reboot-replace-__hw_protection_shutdown-bool-action-parameter-with-an-enum/20241219-155416
base:   78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8
patch link:    https://lore.kernel.org/r/20241219-hw_protection-reboot-v1-2-263a0c1df802%40pengutronix.de
patch subject: [PATCH 02/11] reboot: reboot, not shutdown, on hw_protection_reboot timeout
config: i386-buildonly-randconfig-003-20241220 (https://download.01.org/0day-ci/archive/20241220/202412201310.JWkUQ9qf-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241220/202412201310.JWkUQ9qf-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412201310.JWkUQ9qf-lkp@intel.com/

All warnings (new ones prefixed by >>):

   kernel/reboot.c:241: warning: Function parameter or struct member 'cmd' not described in 'do_kernel_restart'
>> kernel/reboot.c:995: warning: Function parameter or struct member 'action' not described in 'hw_failure_emergency_schedule'
>> kernel/reboot.c:995: warning: Function parameter or struct member 'poweroff_delay_ms' not described in 'hw_failure_emergency_schedule'
   kernel/reboot.c:1023: warning: Function parameter or struct member 'action' not described in '__hw_protection_shutdown'
   kernel/reboot.c:1023: warning: Excess function parameter 'shutdown' description in '__hw_protection_shutdown'


vim +995 kernel/reboot.c

dfa19b11385d4c Matti Vaittinen 2021-06-03   983  
dfa19b11385d4c Matti Vaittinen 2021-06-03   984  static DECLARE_DELAYED_WORK(hw_failure_emergency_poweroff_work,
dfa19b11385d4c Matti Vaittinen 2021-06-03   985  			    hw_failure_emergency_poweroff_func);
dfa19b11385d4c Matti Vaittinen 2021-06-03   986  
dfa19b11385d4c Matti Vaittinen 2021-06-03   987  /**
595ab92650cc28 Ahmad Fatoum    2024-12-19   988   * hw_failure_emergency_schedule - Schedule an emergency system shutdown or reboot
dfa19b11385d4c Matti Vaittinen 2021-06-03   989   *
dfa19b11385d4c Matti Vaittinen 2021-06-03   990   * This may be called from any critical situation to trigger a system shutdown
dfa19b11385d4c Matti Vaittinen 2021-06-03   991   * after a given period of time. If time is negative this is not scheduled.
dfa19b11385d4c Matti Vaittinen 2021-06-03   992   */
595ab92650cc28 Ahmad Fatoum    2024-12-19   993  static void hw_failure_emergency_schedule(enum hw_protection_action action,
595ab92650cc28 Ahmad Fatoum    2024-12-19   994  					  int poweroff_delay_ms)
dfa19b11385d4c Matti Vaittinen 2021-06-03  @995  {
dfa19b11385d4c Matti Vaittinen 2021-06-03   996  	if (poweroff_delay_ms <= 0)
dfa19b11385d4c Matti Vaittinen 2021-06-03   997  		return;
595ab92650cc28 Ahmad Fatoum    2024-12-19   998  	hw_failure_emergency_action = action;
dfa19b11385d4c Matti Vaittinen 2021-06-03   999  	schedule_delayed_work(&hw_failure_emergency_poweroff_work,
dfa19b11385d4c Matti Vaittinen 2021-06-03  1000  			      msecs_to_jiffies(poweroff_delay_ms));
dfa19b11385d4c Matti Vaittinen 2021-06-03  1001  }
dfa19b11385d4c Matti Vaittinen 2021-06-03  1002  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki