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Message-ID: <202412201443.inJcQtcl-lkp@intel.com>
Date: Fri, 20 Dec 2024 14:56:00 +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 04/11] reboot: rename now misleading hw_protection symbols

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-v1-4-263a0c1df802%40pengutronix.de
patch subject: [PATCH 04/11] reboot: rename now misleading hw_protection symbols
config: i386-buildonly-randconfig-003-20241220 (https://download.01.org/0day-ci/archive/20241220/202412201443.inJcQtcl-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/20241220/202412201443.inJcQtcl-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/202412201443.inJcQtcl-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_trigger'
>> kernel/reboot.c:1023: warning: Excess function parameter 'shutdown' description in '__hw_protection_trigger'


vim +1023 kernel/reboot.c

dfa19b11385d4c Matti Vaittinen 2021-06-03  1002  
dfa19b11385d4c Matti Vaittinen 2021-06-03  1003  /**
c37fda1c195d45 Ahmad Fatoum    2024-12-19  1004   * __hw_protection_trigger - Trigger an emergency system shutdown or reboot
dfa19b11385d4c Matti Vaittinen 2021-06-03  1005   *
79fa723ba84c2b Fabio Estevam   2023-11-29  1006   * @reason:		Reason of emergency shutdown or reboot to be printed.
79fa723ba84c2b Fabio Estevam   2023-11-29  1007   * @ms_until_forced:	Time to wait for orderly shutdown or reboot before
79fa723ba84c2b Fabio Estevam   2023-11-29  1008   *			triggering it. Negative value disables the forced
79fa723ba84c2b Fabio Estevam   2023-11-29  1009   *			shutdown or reboot.
79fa723ba84c2b Fabio Estevam   2023-11-29  1010   * @shutdown:		If true, indicates that a shutdown will happen
79fa723ba84c2b Fabio Estevam   2023-11-29  1011   *			after the critical tempeature is reached.
79fa723ba84c2b Fabio Estevam   2023-11-29  1012   *			If false, indicates that a reboot will happen
79fa723ba84c2b Fabio Estevam   2023-11-29  1013   *			after the critical tempeature is reached.
dfa19b11385d4c Matti Vaittinen 2021-06-03  1014   *
79fa723ba84c2b Fabio Estevam   2023-11-29  1015   * Initiate an emergency system shutdown or reboot in order to protect
79fa723ba84c2b Fabio Estevam   2023-11-29  1016   * hardware from further damage. Usage examples include a thermal protection.
79fa723ba84c2b Fabio Estevam   2023-11-29  1017   * NOTE: The request is ignored if protection shutdown or reboot is already
79fa723ba84c2b Fabio Estevam   2023-11-29  1018   * pending even if the previous request has given a large timeout for forced
79fa723ba84c2b Fabio Estevam   2023-11-29  1019   * shutdown/reboot.
dfa19b11385d4c Matti Vaittinen 2021-06-03  1020   */
c37fda1c195d45 Ahmad Fatoum    2024-12-19  1021  void __hw_protection_trigger(const char *reason, int ms_until_forced,
d3e5893beaf551 Ahmad Fatoum    2024-12-19  1022  			     enum hw_protection_action action)
dfa19b11385d4c Matti Vaittinen 2021-06-03 @1023  {
dfa19b11385d4c Matti Vaittinen 2021-06-03  1024  	static atomic_t allow_proceed = ATOMIC_INIT(1);
dfa19b11385d4c Matti Vaittinen 2021-06-03  1025  
dfa19b11385d4c Matti Vaittinen 2021-06-03  1026  	pr_emerg("HARDWARE PROTECTION shutdown (%s)\n", reason);
dfa19b11385d4c Matti Vaittinen 2021-06-03  1027  
dfa19b11385d4c Matti Vaittinen 2021-06-03  1028  	/* Shutdown should be initiated only once. */
dfa19b11385d4c Matti Vaittinen 2021-06-03  1029  	if (!atomic_dec_and_test(&allow_proceed))
07a22b61946f0b Petr Mladek     2022-06-23  1030  		return;
dfa19b11385d4c Matti Vaittinen 2021-06-03  1031  
dfa19b11385d4c Matti Vaittinen 2021-06-03  1032  	/*
dfa19b11385d4c Matti Vaittinen 2021-06-03  1033  	 * Queue a backup emergency shutdown in the event of
dfa19b11385d4c Matti Vaittinen 2021-06-03  1034  	 * orderly_poweroff failure
dfa19b11385d4c Matti Vaittinen 2021-06-03  1035  	 */
595ab92650cc28 Ahmad Fatoum    2024-12-19  1036  	hw_failure_emergency_schedule(action, ms_until_forced);
d3e5893beaf551 Ahmad Fatoum    2024-12-19  1037  	if (action == HWPROT_ACT_REBOOT)
79fa723ba84c2b Fabio Estevam   2023-11-29  1038  		orderly_reboot();
d3e5893beaf551 Ahmad Fatoum    2024-12-19  1039  	else
d3e5893beaf551 Ahmad Fatoum    2024-12-19  1040  		orderly_poweroff(true);
dfa19b11385d4c Matti Vaittinen 2021-06-03  1041  }
c37fda1c195d45 Ahmad Fatoum    2024-12-19  1042  EXPORT_SYMBOL_GPL(__hw_protection_trigger);
dfa19b11385d4c Matti Vaittinen 2021-06-03  1043  

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

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