diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index ceeff3d473f1..94c85ff2d123 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -758,6 +758,13 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) return 0; } +static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr) +{ + return IS_ENABLED(CONFIG_HOTPLUG_CPU) && num_online_cpus() > 1 && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED) && + !pr->flags.has_cst; +} + /** * acpi_idle_enter_simple - enters an ACPI state without BM handling * @dev: the target CPU @@ -775,12 +782,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + if (acpi_idle_fallback_to_c1(pr)) return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); -#endif /* * Must be done before busmaster disable as we might need to @@ -819,12 +822,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + if (acpi_idle_fallback_to_c1(pr)) return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); -#endif if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (drv->safe_state_index >= 0) { |