linux-kernel - Re: [PATCH v1 1/2] ACPI: utils: Add api to read

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Date:   Thu, 23 Jun 2022 05:10:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Stefan Binding <sbinding@...nsource.cirrus.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-acpi@...r.kernel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        patches@...nsource.cirrus.com,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: Re: [PATCH v1 1/2] ACPI: utils: Add api to read _SUB from ACPI

Hi Stefan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on rafael-pm/linux-next]
[also build test ERROR on broonie-sound/for-next linus/master v5.19-rc3 next-20220622]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Stefan-Binding/Read-_SUB-from-ACPI-to-be-able-to-identify-firmware/20220622-211004
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: powerpc-pasemi_defconfig (https://download.01.org/0day-ci/archive/20220623/202206230402.9xK6YlsY-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/97b928a895ce3105296f0036393bb9ee04f11ae4
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Stefan-Binding/Read-_SUB-from-ACPI-to-be-able-to-identify-firmware/20220622-211004
        git checkout 97b928a895ce3105296f0036393bb9ee04f11ae4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/i2c.h:13,
                    from include/uapi/linux/fb.h:6,
                    from include/linux/fb.h:7,
                    from include/linux/backlight.h:13,
                    from arch/powerpc/kernel/traps.c:32:
>> include/linux/acpi.h:1029:12: error: 'acpi_get_sub' defined but not used [-Werror=unused-function]
    1029 | static int acpi_get_sub(acpi_handle handle, char *sub, size_t size)
         |            ^~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/acpi_get_sub +1029 include/linux/acpi.h

  1028	
> 1029	static int acpi_get_sub(acpi_handle handle, char *sub, size_t size)
  1030	{
  1031		return -ENODEV;
  1032	}
  1033	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp