Hi Ken, kernel test robot noticed the following build errors: [auto build test ERROR on b483d3b8a54a544ab8854ca6dbb8d99c423b3ba4] url: https://github.com/intel-lab-lkp/linux/commits/Ken-Xue/acpi-trigger-wakeup-key-event-from-power-button/20230913-084852 base: b483d3b8a54a544ab8854ca6dbb8d99c423b3ba4 patch link: https://lore.kernel.org/r/20230913002145.743571-1-Ken.Xue%40amd.com patch subject: [PATCH V4] acpi: trigger wakeup key event from power button config: loongarch-randconfig-001-20230914 (https://download.01.org/0day-ci/archive/20230915/202309150547.0dolJMlI-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230915/202309150547.0dolJMlI-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309150547.0dolJMlI-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): loongarch64-linux-ld: drivers/acpi/sleep.o: in function `acpi_pm_finish': >> drivers/acpi/sleep.c:514:(.text+0x29c): undefined reference to `acpi_power_button_wakeup' vim +514 drivers/acpi/sleep.c 472 473 /** 474 * acpi_pm_finish - Instruct the platform to leave a sleep state. 475 * 476 * This is called after we wake back up (or if entering the sleep state 477 * failed). 478 */ 479 static void acpi_pm_finish(void) 480 { 481 struct acpi_device *pwr_btn_adev; 482 u32 acpi_state = acpi_target_sleep_state; 483 484 acpi_ec_unblock_transactions(); 485 suspend_nvs_free(); 486 487 if (acpi_state == ACPI_STATE_S0) 488 return; 489 490 pr_info("Waking up from system sleep state S%d\n", acpi_state); 491 acpi_disable_wakeup_devices(acpi_state); 492 acpi_leave_sleep_state(acpi_state); 493 494 /* reset firmware waking vector */ 495 acpi_set_waking_vector(0); 496 497 acpi_target_sleep_state = ACPI_STATE_S0; 498 499 acpi_resume_power_resources(); 500 501 /* If we were woken with the fixed power button, provide a small 502 * hint to userspace in the form of a wakeup event on the fixed power 503 * button device (if it can be found). 504 * 505 * We delay the event generation til now, as the PM layer requires 506 * timekeeping to be running before we generate events. */ 507 if (!pwr_btn_event_pending) 508 return; 509 510 pwr_btn_event_pending = false; 511 pwr_btn_adev = acpi_dev_get_first_match_dev(ACPI_BUTTON_HID_POWERF, 512 NULL, -1); 513 if (pwr_btn_adev) { > 514 acpi_power_button_wakeup(pwr_btn_adev); 515 pm_wakeup_event(&pwr_btn_adev->dev, 0); 516 acpi_dev_put(pwr_btn_adev); 517 } 518 } 519 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki