Hi Rajat, I love your patch! Perhaps something to improve: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.1-rc3 next-20221104] [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/Rajat-Khandelwal/iio-temperature-Add-driver-support-for-Maxim-MAX30208/20221101-102308 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20221101174409.316447-1-rajat.khandelwal%40linux.intel.com patch subject: [PATCH v7] iio: temperature: Add driver support for Maxim MAX30208 config: riscv-randconfig-c006-20221103 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/2375dabd39957ad8e80878c5604eda8a9f73932d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Rajat-Khandelwal/iio-temperature-Add-driver-support-for-Maxim-MAX30208/20221101-102308 git checkout 2375dabd39957ad8e80878c5604eda8a9f73932d # 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=riscv SHELL=/bin/bash drivers/block/ drivers/iio/temperature/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/iio/temperature/max30208.c:195:36: warning: unused variable 'max30208_acpi_match' [-Wunused-const-variable] static const struct acpi_device_id max30208_acpi_match[] = { ^ 1 warning generated. vim +/max30208_acpi_match +195 drivers/iio/temperature/max30208.c 194 > 195 static const struct acpi_device_id max30208_acpi_match[] = { 196 { "MAX30208" }, 197 { } 198 }; 199 MODULE_DEVICE_TABLE(acpi, max30208_acpi_match); 200 -- 0-DAY CI Kernel Test Service https://01.org/lkp