[kbuild-all] Re: [PATCH 2/5] platform/chrome: cros_kbd_led_backlight: separate ACPI backend

Hi Tzung-Bi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on chrome-platform/for-next] [also build test WARNING on robh/for-next lee-mfd/for-mfd-next v5.17-rc4 next-20220214] [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/Tzung-Bi-Shih/platform-chrome-cr... base: https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next config: hexagon-allyesconfig ( https://download.01.org/0day-ci/archive/20220215/202202150337.USCNWPYx-lk... ) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ea071884b0cc7210b3cc5fe858f0e892a779a23b) 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/aea3ce64e967f0980a22b475b6f4aa315... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tzung-Bi-Shih/platform-chrome-cros_kbd_led_backlight-add-EC-PWM-backend/20220214-133805 git checkout aea3ce64e967f0980a22b475b6f4aa3154fff332 # 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/platform/chrome/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): >> drivers/platform/chrome/cros_kbd_led_backlight.c:158:36: warning: unused variable 'keyboard_led_acpi_match' [-Wunused-const-variable] static const struct acpi_device_id keyboard_led_acpi_match[] = { ^ 1 warning generated. vim +/keyboard_led_acpi_match +158 drivers/platform/chrome/cros_kbd_led_backlight.c 157 > 158 static const struct acpi_device_id keyboard_led_acpi_match[] = { 159 { "GOOG0002", (kernel_ulong_t)&keyboard_led_drvdata_acpi }, 160 { } 161 }; 162 MODULE_DEVICE_TABLE(acpi, keyboard_led_acpi_match); 163 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org