Hi Kate, kernel test robot noticed the following build warnings: [auto build test WARNING on media-tree/master] [also build test WARNING on linuxtv-media-stage/master sailus-media-tree/master linus/master v6.12-rc1 next-20241003] [cannot apply to sailus-media-tree/streams] [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/Kate-Hsuan/media-Add-t4ka3-camera-sensor-driver/20241002-173303 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20241002093037.50875-1-hpa%40redhat.com patch subject: [PATCH] media: Add t4ka3 camera sensor driver config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20241003/202410031806.jxxP1Fch-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241003/202410031806.jxxP1Fch-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410031806.jxxP1Fch-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/media/i2c/t4ka3.c:1099:30: warning: 't4ka3_acpi_match' defined but not used [-Wunused-variable] 1099 | static struct acpi_device_id t4ka3_acpi_match[] = { | ^~~~~~~~~~~~~~~~ vim +/t4ka3_acpi_match +1099 drivers/media/i2c/t4ka3.c 1098 > 1099 static struct acpi_device_id t4ka3_acpi_match[] = { 1100 { "XMCC0003" }, 1101 {}, 1102 }; 1103 MODULE_DEVICE_TABLE(acpi, t4ka3_acpi_match); 1104 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki