ACPI_TASK_ENQUEUED
ACPI_TASK_USED | ACPI_TASK_ENQUEUED))
atomic_clear_int(&at->at_flag, ACPI_TASK_USED | ACPI_TASK_ENQUEUED);
atomic_set_int(&at->at_flag, ACPI_TASK_ENQUEUED);
ACPI_TASK_ENQUEUED) != 0)