tree: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git testing head: 68059e507c6111e435d1dfee0d3bb0564ef2c698 commit: 3225e120e4ef904145dae41505285b88df55dfec [43/50] iio: dac: ad5766: add driver support for AD5766 compiler: powerpc64-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <rong.a.chen(a)intel.com&gt; vim +373 drivers/iio/dac/ad5766.c 3225e120e4ef9041 Cristian Pop 2021-01-15 355 3225e120e4ef9041 Cristian Pop 2021-01-15 356 static ssize_t ad5766_read_ext(struct iio_dev *indio_dev, 3225e120e4ef9041 Cristian Pop 2021-01-15 357 uintptr_t private, 3225e120e4ef9041 Cristian Pop 2021-01-15 358 const struct iio_chan_spec *chan, 3225e120e4ef9041 Cristian Pop 2021-01-15 359 char *buf) 3225e120e4ef9041 Cristian Pop 2021-01-15 360 { 3225e120e4ef9041 Cristian Pop 2021-01-15 361 struct ad5766_state *st = iio_priv(indio_dev); 3225e120e4ef9041 Cristian Pop 2021-01-15 362 3225e120e4ef9041 Cristian Pop 2021-01-15 363 switch (private) { 3225e120e4ef9041 Cristian Pop 2021-01-15 364 case AD5766_DITHER_ENABLE: 3225e120e4ef9041 Cristian Pop 2021-01-15 365 return sprintf(buf, "%u\n", 3225e120e4ef9041 Cristian Pop 2021-01-15 366 !(st->dither_enable & BIT(chan->channel))); 3225e120e4ef9041 Cristian Pop 2021-01-15 367 break; 3225e120e4ef9041 Cristian Pop 2021-01-15 368 case AD5766_DITHER_INVERT: 3225e120e4ef9041 Cristian Pop 2021-01-15 369 return sprintf(buf, "%u\n", 3225e120e4ef9041 Cristian Pop 2021-01-15 370 !!(st->dither_invert & BIT(chan->channel))); 3225e120e4ef9041 Cristian Pop 2021-01-15 371 break; 3225e120e4ef9041 Cristian Pop 2021-01-15 372 case AD5766_DITHER_SOURCE: 3225e120e4ef9041 Cristian Pop 2021-01-15 @373 return sprintf(buf, "%u\n", 3225e120e4ef9041 Cristian Pop 2021-01-15 374 ad5766_get_dither_source(indio_dev, chan)); 3225e120e4ef9041 Cristian Pop 2021-01-15 375 default: 3225e120e4ef9041 Cristian Pop 2021-01-15 376 return -EINVAL; 3225e120e4ef9041 Cristian Pop 2021-01-15 377 } 3225e120e4ef9041 Cristian Pop 2021-01-15 378 } 3225e120e4ef9041 Cristian Pop 2021-01-15 379 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org