Re: [PATCH v2 5/5] drm/solomon: Add SSD130x OLED displays SPI support

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Hi Javier,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[also build test WARNING on next-20220412]
[cannot apply to drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next tegra-drm/drm/tegra/for-next linus/master linux/master airlied/drm-next v5.18-rc2]
[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/Javier-Martinez-Canillas/drm-solomon-Add-SSD130x-OLED-displays-SPI-support/20220412-051518
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20220412/202204121654.38UTab7Q-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project fe2478d44e4f7f191c43fef629ac7a23d0251e72)
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/46bbef7fc1afeb9bc8241fe7636e77b5096e3d22
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Javier-Martinez-Canillas/drm-solomon-Add-SSD130x-OLED-displays-SPI-support/20220412-051518
        git checkout 46bbef7fc1afeb9bc8241fe7636e77b5096e3d22
        # 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/gpu/drm/solomon/

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/solomon/ssd130x-spi.c:161:35: warning: unused variable 'ssd130x_spi_table' [-Wunused-const-variable]
   static const struct spi_device_id ssd130x_spi_table[] = {
                                     ^
   1 warning generated.


vim +/ssd130x_spi_table +161 drivers/gpu/drm/solomon/ssd130x-spi.c

   152	
   153	/*
   154	 * The SPI core always reports a MODALIAS uevent of the form "spi:<dev>", even
   155	 * if the device was registered via OF. This means that the module will not be
   156	 * auto loaded, unless it contains an alias that matches the MODALIAS reported.
   157	 *
   158	 * To workaround this issue, add a SPI device ID table. Even when this should
   159	 * not be needed for this driver to match the registered SPI devices.
   160	 */
 > 161	static const struct spi_device_id ssd130x_spi_table[] = {
   162		{ "sh1106",  SH1106_ID },
   163		{ "ssd1305", SSD1305_ID },
   164		{ "ssd1306", SSD1306_ID },
   165		{ "ssd1307", SSD1307_ID },
   166		{ "ssd1309", SSD1309_ID },
   167		{ /* sentinel */ }
   168	};
   169	MODULE_DEVICE_TABLE(spi, ssd130x_spi_table);
   170	

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



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