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

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Message-ID: <CAMRc=Md8ZYB7o_2bEctdaNsHfaVX0YANGWoQ_-6eZi7AfD6KDw@mail.gmail.com>
Date: Fri, 14 Feb 2025 10:24:04 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: kernel test robot <lkp@...el.com>
Cc: 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>, 
	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

On Wed, Feb 12, 2025 at 2:58 PM kernel test robot <lkp@...el.com> wrote:
>
> Hi Bartosz,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR 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: sparc-randconfig-002-20250212 (https://download.01.org/0day-ci/archive/20250212/202502122100.xnayNYRg-lkp@intel.com/config)
> compiler: sparc-linux-gcc (GCC) 14.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250212/202502122100.xnayNYRg-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/202502122100.xnayNYRg-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
>    drivers/leds/leds-aw200xx.c: In function 'aw200xx_disable':
> >> drivers/leds/leds-aw200xx.c:382:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
>      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
>
> d882762f7950c3d Dmitry Rokosov 2023-11-25  379
> d882762f7950c3d Dmitry Rokosov 2023-11-25  380  static void aw200xx_disable(const struct aw200xx *const chip)
> d882762f7950c3d Dmitry Rokosov 2023-11-25  381  {
> d882762f7950c3d Dmitry Rokosov 2023-11-25 @382          return gpiod_set_value_cansleep(chip->hwen, 0);
> d882762f7950c3d Dmitry Rokosov 2023-11-25  383  }
> d882762f7950c3d Dmitry Rokosov 2023-11-25  384
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki

These issues will be fixed once
https://lore.kernel.org/lkml/20250212085918.6902-1-brgl@bgdev.pl/ is
in tree.

Bart