Re: [PATCH 4/5] spi: Add support for Intel LJCA USB SPI driver

[kernel test robot <lkp@xxxxxxxxx>]

Hi Ye,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on lee-mfd/for-mfd-next]
[also build test WARNING on lee-mfd/for-mfd-fixes wsa/i2c/for-next broonie-spi/for-next linus/master v6.2]
[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/Ye-Xiang/mfd-Add-support-for-Intel-LJCA-device/20230220-023253
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next
patch link:    https://lore.kernel.org/r/20230219183059.1029525-5-xiang.ye%40intel.com
patch subject: [PATCH 4/5] spi: Add support for Intel LJCA USB SPI driver
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230220/202302201128.XeS2tn5i-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/6fbec44daa135bd057079083efafd579c710467e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Ye-Xiang/mfd-Add-support-for-Intel-LJCA-device/20230220-023253
        git checkout 6fbec44daa135bd057079083efafd579c710467e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/spi/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302201128.XeS2tn5i-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/spi/spi-ljca.c:269:40: warning: 'ljca_spi_id' defined but not used [-Wunused-const-variable=]
     269 | static const struct platform_device_id ljca_spi_id[] = {
         |                                        ^~~~~~~~~~~


vim +/ljca_spi_id +269 drivers/spi/spi-ljca.c

   267	
   268	#define LJCA_SPI_DRV_NAME "ljca-spi"
 > 269	static const struct platform_device_id ljca_spi_id[] = {
   270		{ LJCA_SPI_DRV_NAME, 0 },
   271		{ /* sentinel */ }
   272	};
   273	MODULE_DEVICE_TABLE(platform, ljca_spi_id);
   274	

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