linux-kernel - Re: [PATCH 1/2] gpio: davinci: allow building the module with COMPILE

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Message-ID: <CAMRc=MeY_+ZvEgiNegxD012i1NaFN04=8LTzwyUWod_9TRXb-g@mail.gmail.com>
Date: Tue, 1 Oct 2024 11:17:09 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: kernel test robot <lkp@...el.com>
Cc: Keerthy <j-keerthy@...com>, Linus Walleij <linus.walleij@...aro.org>, 
	oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	linux-gpio@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 1/2] gpio: davinci: allow building the module with COMPILE_TEST=y

On Tue, Oct 1, 2024 at 4:35 AM kernel test robot <lkp@...el.com> wrote:
>
> Hi Bartosz,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on brgl/gpio/for-next]
> [also build test WARNING on linus/master v6.12-rc1 next-20240930]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/gpio-davinci-use-generic-device-properties/20240930-195251
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next
> patch link:    https://lore.kernel.org/r/20240930115116.54626-1-brgl%40bgdev.pl
> patch subject: [PATCH 1/2] gpio: davinci: allow building the module with COMPILE_TEST=y
> config: sh-randconfig-002-20241001 (https://download.01.org/0day-ci/archive/20241001/202410011000.hRJ0JPdV-lkp@intel.com/config)
> compiler: sh4-linux-gcc (GCC) 14.1.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241001/202410011000.hRJ0JPdV-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/202410011000.hRJ0JPdV-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/gpio/gpio-davinci.c:652:34: warning: 'davinci_gpio_ids' defined but not used [-Wunused-const-variable=]
>      652 | static const struct of_device_id davinci_gpio_ids[] = {
>          |                                  ^~~~~~~~~~~~~~~~
>

Weird, this doesn't happen on x86 defconfig with OF disabled and W=1...

Bart

>
> vim +/davinci_gpio_ids +652 drivers/gpio/gpio-davinci.c
>
> 0651a730924b17 Devarsh Thakkar   2022-06-13  648
> 8507f35447e6e5 Min-Hua Chen      2023-06-09  649  static DEFINE_SIMPLE_DEV_PM_OPS(davinci_gpio_dev_pm_ops, davinci_gpio_suspend,
> 0651a730924b17 Devarsh Thakkar   2022-06-13  650                         davinci_gpio_resume);
> 0651a730924b17 Devarsh Thakkar   2022-06-13  651
> c770844c3e30be KV Sujith         2013-11-21 @652  static const struct of_device_id davinci_gpio_ids[] = {
> 0c6feb0796ea64 Grygorii Strashko 2014-02-13  653        { .compatible = "ti,keystone-gpio", keystone_gpio_get_irq_chip},
> 6a4d8b6bd27932 Keerthy           2019-06-05  654        { .compatible = "ti,am654-gpio", keystone_gpio_get_irq_chip},
> 0c6feb0796ea64 Grygorii Strashko 2014-02-13  655        { .compatible = "ti,dm6441-gpio", davinci_gpio_get_irq_chip},
> c770844c3e30be KV Sujith         2013-11-21  656        { /* sentinel */ },
> c770844c3e30be KV Sujith         2013-11-21  657  };
> c770844c3e30be KV Sujith         2013-11-21  658  MODULE_DEVICE_TABLE(of, davinci_gpio_ids);
> c770844c3e30be KV Sujith         2013-11-21  659
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki