On 2021/04/08 0:57, kernel test robot wrote:
> Hi Yu,
> 
> Thank you for the patch! Yet something to improve:
> 
> [auto build test ERROR on powerpc/next]
> [also build test ERROR on v5.12-rc6 next-20210407]
> [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/0day-ci/linux/commits/Yu-Kuai/powerpc-Make-some-symbols-static/20210407-205258
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
> config: powerpc64-defconfig (attached as .config)
> compiler: powerpc64-linux-gcc (GCC) 9.3.0
> 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/0day-ci/linux/commit/7c0f3f68006b9b42ce944b02a2059128cc5826ec
>          git remote add linux-review https://github.com/0day-ci/linux
>          git fetch --no-tags linux-review Yu-Kuai/powerpc-Make-some-symbols-static/20210407-205258
>          git checkout 7c0f3f68006b9b42ce944b02a2059128cc5826ec
>          # save the attached .config to linux build tree
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>>> arch/powerpc/kernel/btext.c:49:12: error: 'force_printk_to_btext' defined but not used [-Werror=unused-variable]
>        49 | static int force_printk_to_btext;
>           |            ^~~~~~~~~~~~~~~~~~~~~
>     cc1: all warnings being treated as errors
> 
> 
> vim +/force_printk_to_btext +49 arch/powerpc/kernel/btext.c
> 
>      47	
>      48	static int boot_text_mapped __force_data;
>    > 49	static int force_printk_to_btext;
>      50	

Will remove this variable in another patch.

Thanks
Yu Kuai
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>