linux-kernel - Re: [PATCH 01/14] gpiolib: make value setters have return values

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Message-ID: <202502121512.CmoMg9Q7-lkp@intel.com>
Date: Wed, 12 Feb 2025 16:03:10 +0800
From: kernel test robot <lkp@...el.com>
To: Bartosz Golaszewski <brgl@...ev.pl>,
	Linus Walleij <linus.walleij@...aro.org>,
	Michael Walle <mwalle@...nel.org>,
	Bamvor Jian Zhang <bamv2005@...il.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Keerthy <j-keerthy@...com>,
	Uwe Kleine-König <ukleinek@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org
Subject: Re: [PATCH 01/14] gpiolib: make value setters have return values

Hi Bartosz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on df5d6180169ae06a2eac57e33b077ad6f6252440]

url:    https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/gpiolib-make-value-setters-have-return-values/20250211-201426
base:   df5d6180169ae06a2eac57e33b077ad6f6252440
patch link:    https://lore.kernel.org/r/20250211-gpio-set-retval-v1-1-52d3d613d7d3%40linaro.org
patch subject: [PATCH 01/14] gpiolib: make value setters have return values
config: i386-buildonly-randconfig-002-20250212 (https://download.01.org/0day-ci/archive/20250212/202502121512.CmoMg9Q7-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/20250212/202502121512.CmoMg9Q7-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/202502121512.CmoMg9Q7-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/leds/leds-aw200xx.c: In function 'aw200xx_disable':
>> drivers/leds/leds-aw200xx.c:382:16: warning: 'return' with a value, in function returning void [-Wreturn-type]
     382 |         return gpiod_set_value_cansleep(chip->hwen, 0);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/leds/leds-aw200xx.c:380:13: note: declared here
     380 | static void aw200xx_disable(const struct aw200xx *const chip)
         |             ^~~~~~~~~~~~~~~


vim +/return +382 drivers/leds/leds-aw200xx.c

d882762f7950c3 Dmitry Rokosov 2023-11-25  379  
d882762f7950c3 Dmitry Rokosov 2023-11-25  380  static void aw200xx_disable(const struct aw200xx *const chip)
d882762f7950c3 Dmitry Rokosov 2023-11-25  381  {
d882762f7950c3 Dmitry Rokosov 2023-11-25 @382  	return gpiod_set_value_cansleep(chip->hwen, 0);
d882762f7950c3 Dmitry Rokosov 2023-11-25  383  }
d882762f7950c3 Dmitry Rokosov 2023-11-25  384  

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