Hi Tetsuo, I love your patch! Yet something to improve: [auto build test ERROR on rafael-pm/linux-next] [also build test ERROR on v5.18-rc3 next-20220419] [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/Tetsuo-Handa/ACPI-Avoid-flush_scheduled_work-usage/20220419-215854 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: i386-randconfig-a013 (https://download.01.org/0day-ci/archive/20220420/202204200917.Gi0wjcgM-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c1c49a356162b22554088d269f7689bdb044a9f1) 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/cebc6c01f6fac86f7deaf74ca81311d9c3d179f4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Tetsuo-Handa/ACPI-Avoid-flush_scheduled_work-usage/20220419-215854 git checkout cebc6c01f6fac86f7deaf74ca81311d9c3d179f4 # 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/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/acpi/acpi_video.c:1640:21: error: use of undeclared identifier 'acpi_wq' queue_delayed_work(acpi_wq, &video_device->switch_brightness_work, HZ / 10); ^ drivers/acpi/acpi_video.c:2258:6: warning: no previous prototype for function 'acpi_video_unregister_backlight' [-Wmissing-prototypes] void acpi_video_unregister_backlight(void) ^ drivers/acpi/acpi_video.c:2258:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void acpi_video_unregister_backlight(void) ^ static 1 warning and 1 error generated. -- >> drivers/acpi/video_detect.c:532:14: error: use of undeclared identifier 'acpi_wq' queue_work(acpi_wq, &backlight_notify_work); ^ drivers/acpi/video_detect.c:605:13: warning: no previous prototype for function 'acpi_video_detect_exit' [-Wmissing-prototypes] void __exit acpi_video_detect_exit(void) ^ drivers/acpi/video_detect.c:605:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __exit acpi_video_detect_exit(void) ^ static 1 warning and 1 error generated. vim +/acpi_wq +1640 drivers/acpi/acpi_video.c 1632 1633 static void brightness_switch_event(struct acpi_video_device *video_device, 1634 u32 event) 1635 { 1636 if (!brightness_switch_enabled) 1637 return; 1638 1639 video_device->switch_brightness_event = event; > 1640 queue_delayed_work(acpi_wq, &video_device->switch_brightness_work, HZ / 10); 1641 } 1642 -- 0-DAY CI Kernel Test Service https://01.org/lkp
