From: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Use the observation that the initial status check for
ACPI_BUS_TYPE_PROCESSOR objects can be carried out in the same way
as for ACPI_BUS_TYPE_DEVICE objects and it is not necessary to fail
acpi_add_single_object() if acpi_bus_get_status_handle() returns an
error for a processor (its status can be set to 0 instead) to
simplify acpi_add_single_object().
Accordingly, drop the "sta" argument from acpi_init_device_object()
as it can always set the initial status to ACPI_STA_DEFAULT and let
its caller correct that later on.
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
---
drivers/acpi/internal.h | 3 +--
drivers/acpi/power.c | 3 +--
drivers/acpi/scan.c | 28 ++++++++++++++--------------
3 files changed, 16 insertions(+), 18 deletions(-)
Index: linux-pm/drivers/acpi/scan.c
===================================================================
--- linux-pm.orig/drivers/acpi/scan.c
+++ linux-pm/drivers/acpi/scan.c
@@ -1649,15 +1649,14 @@ static bool acpi_device_enumeration_by_p
}
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
- int type, unsigned long long sta,
- struct acpi_device_info *info)
+ int type, struct acpi_device_info *info)
{
INIT_LIST_HEAD(&device->pnp.ids);
device->device_type = type;
device->handle = handle;
device->parent = acpi_bus_get_parent(handle);
fwnode_init(&device->fwnode, &acpi_device_fwnode_ops);
- acpi_set_device_status(device, sta);
+ acpi_set_device_status(device, ACPI_STA_DEFAULT);
acpi_device_get_busid(device);
acpi_set_pnp_ids(handle, &device->pnp, type, info);
acpi_init_properties(device);
@@ -1680,19 +1679,21 @@ void acpi_device_add_finalize(struct acp
kobject_uevent(&device->dev.kobj, KOBJ_ADD);
}
+static void acpi_scan_init_status(struct acpi_device *adev)
+{
+ if (acpi_bus_get_status(adev))
+ acpi_set_device_status(adev, 0);
+}
+
static int acpi_add_single_object(struct acpi_device **child,
acpi_handle handle, int type)
{
struct acpi_device_info *info = NULL;
- unsigned long long sta = ACPI_STA_DEFAULT;
struct acpi_device *device;
int result;
if (type == ACPI_BUS_TYPE_DEVICE && handle != ACPI_ROOT_OBJECT)
acpi_get_object_info(handle, &info);
- else if (type == ACPI_BUS_TYPE_PROCESSOR &&
- ACPI_FAILURE(acpi_bus_get_status_handle(handle, &sta)))
- return -ENODEV;
device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
if (!device) {
@@ -1700,16 +1701,15 @@ static int acpi_add_single_object(struct
return -ENOMEM;
}
- acpi_init_device_object(device, handle, type, sta, info);
+ acpi_init_device_object(device, handle, type, info);
kfree(info);
/*
- * For ACPI_BUS_TYPE_DEVICE getting the status is delayed till here so
- * that we can call acpi_bus_get_status() and use its quirk handling.
- * Note this must be done before the get power-/wakeup_dev-flags calls.
+ * Getting the status is delayed till here so that we can call
+ * acpi_bus_get_status() and use its quirk handling. Note that
+ * this must be done before the get power-/wakeup_dev-flags calls.
*/
- if (type == ACPI_BUS_TYPE_DEVICE)
- if (acpi_bus_get_status(device) < 0)
- acpi_set_device_status(device, 0);
+ if (type == ACPI_BUS_TYPE_DEVICE || type == ACPI_BUS_TYPE_PROCESSOR)
+ acpi_scan_init_status(device);
acpi_bus_get_power_flags(device);
acpi_bus_get_wakeup_device_flags(device);
Index: linux-pm/drivers/acpi/internal.h
===================================================================
--- linux-pm.orig/drivers/acpi/internal.h
+++ linux-pm/drivers/acpi/internal.h
@@ -109,8 +109,7 @@ struct acpi_device_bus_id {
int acpi_device_add(struct acpi_device *device,
void (*release)(struct device *));
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
- int type, unsigned long long sta,
- struct acpi_device_info *info);
+ int type, struct acpi_device_info *info);
int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);
Index: linux-pm/drivers/acpi/power.c
===================================================================
--- linux-pm.orig/drivers/acpi/power.c
+++ linux-pm/drivers/acpi/power.c
@@ -925,8 +925,7 @@ int acpi_add_power_resource(acpi_handle
return -ENOMEM;
device = &resource->device;
- acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
- ACPI_STA_DEFAULT, NULL);
+ acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER, NULL);
mutex_init(&resource->resource_lock);
INIT_LIST_HEAD(&resource->list_node);
INIT_LIST_HEAD(&resource->dependents);
