Hi Astrid, kernel test robot noticed the following build errors: [auto build test ERROR on jic23-iio/togreg] [also build test ERROR on linus/master v6.4-rc1 next-20230508] [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/Astrid-Rost/iio-light-vcnl4000-Add-proximity-ps_it-for-vcnl4200/20230508-161005 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20230508070925.2123265-4-astrid.rost%40axis.com patch subject: [PATCH v1 3/7] iio: light: vcnl4000: Add als_it for vcnl4040/4200 config: i386-randconfig-a016-20230508 (https://download.01.org/0day-ci/archive/20230508/202305082245.Fy28zlcu-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/6ff2e1cf084f5b3038f2d72110fb01f2a8353a34 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Astrid-Rost/iio-light-vcnl4000-Add-proximity-ps_it-for-vcnl4200/20230508-161005 git checkout 6ff2e1cf084f5b3038f2d72110fb01f2a8353a34 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202305082245.Fy28zlcu-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/iio/light/vcnl4000.o: in function `vcnl4040_write_als_it': >> drivers/iio/light/vcnl4000.c:580: undefined reference to `__divdi3' vim +580 drivers/iio/light/vcnl4000.c 552 553 static ssize_t vcnl4040_write_als_it(struct vcnl4000_data *data, int val) 554 { 555 unsigned int i; 556 int ret, index = -1; 557 u16 regval; 558 const int(*als_it_times)[][2]; 559 int size; 560 561 if (data->id == VCNL4200) { 562 als_it_times = &vcnl4200_als_it_times; 563 size = ARRAY_SIZE(vcnl4200_als_it_times); 564 } else { 565 als_it_times = &vcnl4040_als_it_times; 566 size = ARRAY_SIZE(vcnl4040_als_it_times); 567 } 568 569 for (i = 0; i < size; i++) { 570 if (val == (*als_it_times)[i][1]) { 571 index = i; 572 break; 573 } 574 } 575 576 if (index < 0) 577 return -EINVAL; 578 579 data->vcnl4200_al.sampling_rate = ktime_set(0, val * 1200000); > 580 data->al_scale = 12000000000 / val; 581 582 mutex_lock(&data->vcnl4000_lock); 583 584 ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); 585 if (ret < 0) 586 goto out; 587 588 regval = (ret & ~VCNL4040_ALS_CONF_IT) | 589 FIELD_PREP(VCNL4040_ALS_CONF_IT, index); 590 ret = i2c_smbus_write_word_data(data->client, VCNL4200_AL_CONF, 591 regval); 592 593 out: 594 mutex_unlock(&data->vcnl4000_lock); 595 return ret; 596 } 597 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
