Re: [PATCH v4 2/2] misc: Add iop driver for Sunplus SP7021

[kernel test robot <lkp@intel.com>]

Hi Tony,

I love your patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on robh/for-next soc/for-next linus/master v5.16-rc5 next-20211215]
[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/Tony-Huang/Add-iop-driver-for-Sunplus-SP7021/20211216-093835
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git af40d16042d674442db8cf5fd654fabcd45fea44
config: hexagon-randconfig-r011-20211216 (https://download.01.org/0day-ci/archive/20211217/202112170208.xrabSwww-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba)
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/916d31a2d28c9f0ad7d7073d7943b9cf656038f5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Tony-Huang/Add-iop-driver-for-Sunplus-SP7021/20211216-093835
        git checkout 916d31a2d28c9f0ad7d7073d7943b9cf656038f5
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/misc/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/misc/sunplus_iop.c:475:34: warning: unused variable 'sp_iop_of_match' [-Wunused-const-variable]
   static const struct of_device_id sp_iop_of_match[] = {
                                    ^
   1 warning generated.


vim +/sp_iop_of_match +475 drivers/misc/sunplus_iop.c

   474	
 > 475	static const struct of_device_id sp_iop_of_match[] = {
   476		{ .compatible = "sunplus,sp7021-iop" },
   477		{ /* sentinel */ },
   478	};
   479	

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