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Date: Mon, 6 May 2024 06:33:22 +0800
From: kernel test robot <lkp@...el.com>
To: Thomas Weißschuh <linux@...ssschuh.net>,
	Lee Jones <lee@...nel.org>, Benson Leung <bleung@...omium.org>,
	Guenter Roeck <groeck@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	chrome-platform@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Dustin Howett <dustin@...ett.net>,
	Mario Limonciello <mario.limonciello@....com>,
	Thomas Weißschuh <linux@...ssschuh.net>
Subject: Re: [PATCH] platform/chrome: cros_kbd_led_backlight: enable probing
 through EC_FEATURE_PWM_KEYB

Hi Thomas,

kernel test robot noticed the following build errors:

[auto build test ERROR on 2fbe479c0024e1c6b992184a799055e19932aa48]

url:    https://github.com/intel-lab-lkp/linux/commits/Thomas-Wei-schuh/platform-chrome-cros_kbd_led_backlight-enable-probing-through-EC_FEATURE_PWM_KEYB/20240505-174413
base:   2fbe479c0024e1c6b992184a799055e19932aa48
patch link:    https://lore.kernel.org/r/20240505-cros_ec-kbd-led-framework-v1-1-bfcca69013d2%40weissschuh.net
patch subject: [PATCH] platform/chrome: cros_kbd_led_backlight: enable probing through EC_FEATURE_PWM_KEYB
config: x86_64-randconfig-072-20240506 (https://download.01.org/0day-ci/archive/20240506/202405060655.dD06crN0-lkp@intel.com/config)
compiler: clang version 18.1.4 (https://github.com/llvm/llvm-project e6c3289804a67ea0bb6a86fadbe454dd93b8d855)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240506/202405060655.dD06crN0-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/202405060655.dD06crN0-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/platform/chrome/cros_kbd_led_backlight.c:218:42: error: redefinition of 'keyboard_led_drvdata_ec_pwm'
     218 | static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = {};
         |                                          ^
   drivers/platform/chrome/cros_kbd_led_backlight.c:184:57: note: previous definition is here
     184 | static const __maybe_unused struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = {
         |                                                         ^
>> drivers/platform/chrome/cros_kbd_led_backlight.c:240:14: error: use of undeclared identifier 'keyboard_led_drvdata_ec_pwm_mfd'; did you mean 'keyboard_led_drvdata_acpi'?
     240 |                 drvdata = &keyboard_led_drvdata_ec_pwm_mfd;
         |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                            keyboard_led_drvdata_acpi
   drivers/platform/chrome/cros_kbd_led_backlight.c:114:42: note: 'keyboard_led_drvdata_acpi' declared here
     114 | static const struct keyboard_led_drvdata keyboard_led_drvdata_acpi = {
         |                                          ^
   2 errors generated.


vim +240 drivers/platform/chrome/cros_kbd_led_backlight.c

   217	
 > 218	static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = {};
   219	
   220	#endif /* IS_ENABLED(CONFIG_MFD_CROS_EC_DEV) */
   221	
   222	static int keyboard_led_is_mfd_device(struct platform_device *pdev)
   223	{
   224		if (!IS_ENABLED(CONFIG_MFD_CROS_EC_DEV))
   225			return 0;
   226	
   227		if (!pdev->dev.parent)
   228			return 0;
   229	
   230		return strcmp(pdev->dev.parent->driver->name, "cros-ec-dev") == 0;
   231	}
   232	
   233	static int keyboard_led_probe(struct platform_device *pdev)
   234	{
   235		const struct keyboard_led_drvdata *drvdata;
   236		struct keyboard_led *keyboard_led;
   237		int error;
   238	
   239		if (keyboard_led_is_mfd_device(pdev))
 > 240			drvdata = &keyboard_led_drvdata_ec_pwm_mfd;
   241		else
   242			drvdata = device_get_match_data(&pdev->dev);
   243		if (!drvdata)
   244			return -EINVAL;
   245	
   246		keyboard_led = devm_kzalloc(&pdev->dev, sizeof(*keyboard_led), GFP_KERNEL);
   247		if (!keyboard_led)
   248			return -ENOMEM;
   249		platform_set_drvdata(pdev, keyboard_led);
   250	
   251		if (drvdata->init) {
   252			error = drvdata->init(pdev);
   253			if (error)
   254				return error;
   255		}
   256	
   257		keyboard_led->cdev.name = "chromeos::kbd_backlight";
   258		keyboard_led->cdev.flags |= LED_CORE_SUSPENDRESUME;
   259		keyboard_led->cdev.max_brightness = drvdata->max_brightness;
   260		keyboard_led->cdev.brightness_set = drvdata->brightness_set;
   261		keyboard_led->cdev.brightness_set_blocking = drvdata->brightness_set_blocking;
   262		keyboard_led->cdev.brightness_get = drvdata->brightness_get;
   263	
   264		error = devm_led_classdev_register(&pdev->dev, &keyboard_led->cdev);
   265		if (error)
   266			return error;
   267	
   268		return 0;
   269	}
   270	

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

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