Hi Gwan-gyeong, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v6.1-rc2 next-20221028] [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/Gwan-gyeong-Mun/bitfield-Use-argument-type-for-size-comparison-on-Bitfield-access-macros/20221029-133640 patch link: https://lore.kernel.org/r/20221029053429.38381-1-gwan-gyeong.mun%40intel.com patch subject: [PATCH] bitfield: Use argument type for size comparison on Bitfield access macros config: nios2-randconfig-s033-20221028 compiler: nios2-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/91f22fce5cc0639c001bcf755c9dec0913073876 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Gwan-gyeong-Mun/bitfield-Use-argument-type-for-size-comparison-on-Bitfield-access-macros/20221029-133640 git checkout 91f22fce5cc0639c001bcf755c9dec0913073876 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 SHELL=/bin/bash drivers/iio/cdc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/iio/cdc/ad7746.c:281:23: sparse: sparse: cast truncates bits from constant value (ffffff01 becomes 1) drivers/iio/cdc/ad7746.c:297:23: sparse: sparse: cast truncates bits from constant value (ffffff01 becomes 1) drivers/iio/cdc/ad7746.c: note: in included file (through include/uapi/linux/swab.h, include/linux/swab.h, include/uapi/linux/byteorder/little_endian.h, ...): arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini vim +281 drivers/iio/cdc/ad7746.c 6a7e4b04df3f4f drivers/staging/iio/cdc/ad7746.c Lucas Stankus 2021-05-23 265 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 266 static int ad7746_select_channel(struct iio_dev *indio_dev, 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 267 struct iio_chan_spec const *chan) 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 268 { 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 269 struct ad7746_chip_info *chip = iio_priv(indio_dev); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 270 u8 vt_setup, cap_setup; afcd0b22e35e0b drivers/staging/iio/cdc/ad7746.c Hernán Gonzalez 2018-04-13 271 int ret, delay, idx; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 272 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 273 switch (chan->type) { 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 274 case IIO_CAPACITANCE: 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 275 cap_setup = FIELD_PREP(AD7746_CAPSETUP_CIN2, 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 276 ad7746_chan_info[chan->address].cin2) | 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 277 FIELD_PREP(AD7746_CAPSETUP_CAPDIFF, 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 278 ad7746_chan_info[chan->address].capdiff) | 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 279 FIELD_PREP(AD7746_CAPSETUP_CAPEN, 1); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 280 vt_setup = chip->vt_setup & ~AD7746_VTSETUP_VTEN; 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 @281 idx = FIELD_GET(AD7746_CONF_CAPFS_MASK, chip->config); 579d542534c96c drivers/staging/iio/cdc/ad7746.c Eva Rachel Retuya 2016-10-28 282 delay = ad7746_cap_filter_rate_table[idx][1]; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 283 6a7e4b04df3f4f drivers/staging/iio/cdc/ad7746.c Lucas Stankus 2021-05-23 284 ret = ad7746_set_capdac(chip, chan->channel); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 285 if (ret < 0) 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 286 return ret; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 287 050098500ae4f7 drivers/staging/iio/cdc/ad7746.c Alexander Vorwerk 2021-08-21 288 if (chip->capdac_set != chan->channel) 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 289 chip->capdac_set = chan->channel; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 290 break; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 291 case IIO_VOLTAGE: 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 292 case IIO_TEMP: 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 293 vt_setup = FIELD_PREP(AD7746_VTSETUP_VTMD_MASK, 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 294 ad7746_chan_info[chan->address].vtmd) | 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 295 FIELD_PREP(AD7746_VTSETUP_VTEN, 1); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 296 cap_setup = chip->cap_setup & ~AD7746_CAPSETUP_CAPEN; 9eee2fc4a670d7 drivers/staging/iio/cdc/ad7746.c Jonathan Cameron 2022-06-26 297 idx = FIELD_GET(AD7746_CONF_VTFS_MASK, chip->config); 579d542534c96c drivers/staging/iio/cdc/ad7746.c Eva Rachel Retuya 2016-10-28 298 delay = ad7746_cap_filter_rate_table[idx][1]; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 299 break; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 300 default: 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 301 return -EINVAL; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 302 } 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 303 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 304 if (chip->cap_setup != cap_setup) { 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 305 ret = i2c_smbus_write_byte_data(chip->client, 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 306 AD7746_REG_CAP_SETUP, 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 307 cap_setup); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 308 if (ret < 0) 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 309 return ret; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 310 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 311 chip->cap_setup = cap_setup; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 312 } 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 313 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 314 if (chip->vt_setup != vt_setup) { 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 315 ret = i2c_smbus_write_byte_data(chip->client, 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 316 AD7746_REG_VT_SETUP, 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 317 vt_setup); 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 318 if (ret < 0) 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 319 return ret; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 320 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 321 chip->vt_setup = vt_setup; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 322 } 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 323 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 324 return delay; 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 325 } 83e416f458d532 drivers/staging/iio/adc/ad7746.c Michael Hennerich 2011-09-21 326 -- 0-DAY CI Kernel Test Service https://01.org/lkp