Hi Mario, url: https://github.com/0day-ci/linux/commits/Mario-Limonciello/ACPI-x86-Add-support-for-LPS0-callback-handler/20220317-053103 base: a32cd981a6da2373c093d471ee4405a915e217d5 config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220317/202203171657.uF7h6TEG-lkp@xxxxxxxxx/config ) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/acpi/x86/s2idle.c:478 acpi_s2idle_prepare_late() error: we previously assumed 'handler' could be null (see line 479) vim +/handler +478 drivers/acpi/x86/s2idle.c fa209644a7124b Mario Limonciello 2021-09-01 474 acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY, fa209644a7124b Mario Limonciello 2021-09-01 475 lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft); fef98671194be0 Rafael J. Wysocki 2020-12-17 476 } 4be2feac72a3ad Mario Limonciello 2022-03-16 477 4be2feac72a3ad Mario Limonciello 2022-03-16 @478 list_for_each_entry(handler, &lps0_s2idle_devops_head, list_node) { 4be2feac72a3ad Mario Limonciello 2022-03-16 @479 if (handler) 4be2feac72a3ad Mario Limonciello 2022-03-16 480 handler->prepare(); The list iterator can never be NULL so there is no need to check. 4be2feac72a3ad Mario Limonciello 2022-03-16 481 } 4be2feac72a3ad Mario Limonciello 2022-03-16 482 fef98671194be0 Rafael J. Wysocki 2020-12-17 483 return 0; fef98671194be0 Rafael J. Wysocki 2020-12-17 484 } --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx _______________________________________________ kbuild mailing list -- kbuild@xxxxxxxxxxxx To unsubscribe send an email to kbuild-leave@xxxxxxxxxxxx