tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: e7d6987e09a328d4a949701db40ef63fbb970670 commit: 74373977d2ca26e5735377f8874be70bc2f030f5 [4698/5845] drm/solomon: Add SSD130x OLED displays SPI support config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220423/202204230717.gJP3yZ5j-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=74373977d2ca26e5735377f8874be70bc2f030f5 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 74373977d2ca26e5735377f8874be70bc2f030f5 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 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:154:35: 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 +154 drivers/gpu/drm/solomon/ssd130x-spi.c 145 146 /* 147 * The SPI core always reports a MODALIAS uevent of the form "spi:<dev>", even 148 * if the device was registered via OF. This means that the module will not be 149 * auto loaded, unless it contains an alias that matches the MODALIAS reported. 150 * 151 * To workaround this issue, add a SPI device ID table. Even when this should 152 * not be needed for this driver to match the registered SPI devices. 153 */ > 154 static const struct spi_device_id ssd130x_spi_table[] = { 155 { "sh1106", SH1106_ID }, 156 { "ssd1305", SSD1305_ID }, 157 { "ssd1306", SSD1306_ID }, 158 { "ssd1307", SSD1307_ID }, 159 { "ssd1309", SSD1309_ID }, 160 { /* sentinel */ } 161 }; 162 MODULE_DEVICE_TABLE(spi, ssd130x_spi_table); 163 -- 0-DAY CI Kernel Test Service https://01.org/lkp