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-rc8] [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/20230219183059.1029525-4-xiang.ye%40intel.com patch subject: [PATCH 3/5] i2c: Add support for Intel LJCA USB I2C driver config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230220/202302200748.p6HZohuJ-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/9faeca641d7d776bbd8158b606a77830eddde590 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 9faeca641d7d776bbd8158b606a77830eddde590 # 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/i2c/busses/ 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/202302200748.p6HZohuJ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/i2c/busses/i2c-ljca.c:339:40: warning: 'ljca_i2c_id' defined but not used [-Wunused-const-variable=] 339 | static const struct platform_device_id ljca_i2c_id[] = { | ^~~~~~~~~~~ vim +/ljca_i2c_id +339 drivers/i2c/busses/i2c-ljca.c 337 338 #define LJCA_I2C_DRV_NAME "ljca-i2c" > 339 static const struct platform_device_id ljca_i2c_id[] = { 340 { LJCA_I2C_DRV_NAME, 0 }, 341 { /* sentinel */ } 342 }; 343 MODULE_DEVICE_TABLE(platform, ljca_i2c_id); 344 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests