Hi Antoniu, Thank you for the patch! Yet something to improve: [auto build test ERROR on iio/togreg] [also build test ERROR on linux/master linus/master v5.14-rc1 next-20210716] [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/Antoniu-Miclaus/iio-frequency-ad... base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 10.3.0 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/59f8f05a22397c9b919c512d1e28cbad5... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Antoniu-Miclaus/iio-frequency-adrf6780-add-support-for-ADRF6780/20210718-104320 git checkout 59f8f05a22397c9b919c512d1e28cbad5caf78a7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/iio/frequency/adrf6780.c: In function 'adrf6780_read_voltage_raw': 161 | if (!(read_val & ADRF6780_ADC_STATUS_MSK)) { | ^ vim +161 drivers/iio/frequency/adrf6780.c 138 139 static int adrf6780_read_voltage_raw(struct adrf6780_dev *dev, unsigned int *read_val) 140 { 141 int ret; 142 143 mutex_lock(&dev->lock); 144 145 ret = adrf6780_spi_update_bits(dev, ADRF6780_REG_ADC_CONTROL, 146 ADRF6780_ADC_EN_MSK | 147 ADRF6780_ADC_CLOCK_EN_MSK | 148 ADRF6780_ADC_START_MSK, 149 FIELD_PREP(ADRF6780_ADC_EN_MSK, 1) | 150 FIELD_PREP(ADRF6780_ADC_CLOCK_EN_MSK, 1) | 151 FIELD_PREP(ADRF6780_ADC_START_MSK, 1)); 152 if (ret) 153 goto exit; 154 155 usleep_range(200, 250); 156 157 ret = adrf6780_spi_read(dev, ADRF6780_REG_ADC_OUTPUT, read_val); 158 if (ret) 159 goto exit; 160 162 ret = -EINVAL; 163 goto exit; 164 } 165 166 ret = adrf6780_spi_update_bits(dev, ADRF6780_REG_ADC_CONTROL, 167 ADRF6780_ADC_START_MSK, 168 FIELD_PREP(ADRF6780_ADC_START_MSK, 0)); 169 if (ret) 170 goto exit; 171 172 ret = adrf6780_spi_read(dev, ADRF6780_REG_ADC_OUTPUT, read_val); 173 174 exit: 175 mutex_unlock(&dev->lock); 176 return ret; 177 } 178 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org