Hi Shreeya, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on v5.19-rc1] [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/intel-lab-lkp/linux/commits/Shreeya-Patel/Add-LTRF216A-Driver/20220608-194016 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220609/202206090943.Zvfv6OBd-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) 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/intel-lab-lkp/linux/commit/4809a7f42af19c3da77457e1aaf37ddd171fa779 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Shreeya-Patel/Add-LTRF216A-Driver/20220608-194016 git checkout 4809a7f42af19c3da77457e1aaf37ddd171fa779 # 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=i386 SHELL=/bin/bash drivers/iio/adc/ drivers/iio/light/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/iio/light/ltrf216a.c:193:5: warning: no previous prototype for function 'ltrf216a_check_for_data' [-Wmissing-prototypes] int ltrf216a_check_for_data(struct i2c_client *client) ^ drivers/iio/light/ltrf216a.c:193:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ltrf216a_check_for_data(struct i2c_client *client) ^ static 1 warning generated. vim +/ltrf216a_check_for_data +193 drivers/iio/light/ltrf216a.c 192 > 193 int ltrf216a_check_for_data(struct i2c_client *client) 194 { 195 int ret; 196 197 ret = i2c_smbus_read_byte_data(client, LTRF216A_MAIN_STATUS); 198 if (ret < 0) { 199 dev_err(&client->dev, "Failed to read LTRF216A_MAIN_STATUS register: %d\n", ret); 200 return ret; 201 } 202 203 return ret; 204 } 205 -- 0-DAY CI Kernel Test Service https://01.org/lkp
