Merge branch 'acpi-scan' into acpi-x86

Merge recent device enumeration changes to satisfy dependencies.

Author: rafaeljw

drivers/acpi/acpi_video.c

@@ -1733,13 +1733,12 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
 {
 	struct acpi_device *device = context;
 	struct acpi_device *sibling;
-	int result;
 
 	if (handle == device->handle)
 		return AE_CTRL_TERMINATE;
 
-	result = acpi_bus_get_device(handle, &sibling);
-	if (result)
+	sibling = acpi_fetch_acpi_dev(handle);
+	if (!sibling)
 		return AE_OK;
 
 	if (!strcmp(acpi_device_name(sibling), ACPI_VIDEO_BUS_NAME))

drivers/acpi/device_pm.c

@@ -285,14 +285,12 @@ EXPORT_SYMBOL(acpi_device_set_power);
 
 int acpi_bus_set_power(acpi_handle handle, int state)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result)
-		return result;
+	if (device)
+		return acpi_device_set_power(device, state);
 
-	return acpi_device_set_power(device, state);
+	return -ENODEV;
 }
 EXPORT_SYMBOL(acpi_bus_set_power);
 
@@ -410,21 +408,20 @@ EXPORT_SYMBOL_GPL(acpi_device_update_power);
 
 int acpi_bus_update_power(acpi_handle handle, int *state_p)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? result : acpi_device_update_power(device, state_p);
+	if (device)
+		return acpi_device_update_power(device, state_p);
+
+	return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(acpi_bus_update_power);
 
 bool acpi_bus_power_manageable(acpi_handle handle)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->flags.power_manageable;
+	return device && device->flags.power_manageable;
 }
 EXPORT_SYMBOL(acpi_bus_power_manageable);
 
@@ -543,11 +540,9 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
 
 bool acpi_bus_can_wakeup(acpi_handle handle)
 {
-	struct acpi_device *device;
-	int result;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->wakeup.flags.valid;
+	return device && device->wakeup.flags.valid;
 }
 EXPORT_SYMBOL(acpi_bus_can_wakeup);
 

drivers/acpi/dock.c

@@ -489,9 +489,8 @@ static ssize_t docked_show(struct device *dev,
 			   struct device_attribute *attr, char *buf)
 {
 	struct dock_station *dock_station = dev->platform_data;
-	struct acpi_device *adev = NULL;
+	struct acpi_device *adev = acpi_fetch_acpi_dev(dock_station->handle);
 
-	acpi_bus_get_device(dock_station->handle, &adev);
 	return sysfs_emit(buf, "%u\n", acpi_device_enumerated(adev));
 }
 static DEVICE_ATTR_RO(docked);

drivers/acpi/pci_link.c

@@ -606,12 +606,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
 			       int *polarity, char **name)
 {
-	int result;
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_link *link;
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result) {
+	if (!device) {
 		acpi_handle_err(handle, "Invalid link device\n");
 		return -1;
 	}
@@ -658,12 +656,10 @@ int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
  */
 int acpi_pci_link_free_irq(acpi_handle handle)
 {
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_link *link;
-	acpi_status result;
 
-	result = acpi_bus_get_device(handle, &device);
-	if (result) {
+	if (!device) {
 		acpi_handle_err(handle, "Invalid link device\n");
 		return -1;
 	}

drivers/acpi/pci_root.c

@@ -67,11 +67,10 @@ static struct acpi_scan_handler pci_root_handler = {
  */
 int acpi_is_root_bridge(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	int ret;
-	struct acpi_device *device;
 
-	ret = acpi_bus_get_device(handle, &device);
-	if (ret)
+	if (!device)
 		return 0;
 
 	ret = acpi_match_device_ids(device, root_device_ids);
@@ -215,11 +214,10 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
 
 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_pci_root *root;
-	struct acpi_device *device;
 
-	if (acpi_bus_get_device(handle, &device) ||
-	    acpi_match_device_ids(device, root_device_ids))
+	if (!device || acpi_match_device_ids(device, root_device_ids))
 		return NULL;
 
 	root = acpi_driver_data(device);

drivers/acpi/power.c

@@ -81,9 +81,9 @@ struct acpi_power_resource *to_power_resource(struct acpi_device *device)
 
 static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 {
-	struct acpi_device *device;
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 
-	if (acpi_bus_get_device(handle, &device))
+	if (!device)
 		return NULL;
 
 	return to_power_resource(device);
@@ -916,15 +916,14 @@ static void acpi_power_add_resource_to_list(struct acpi_power_resource *resource
 
 struct acpi_device *acpi_add_power_resource(acpi_handle handle)
 {
+	struct acpi_device *device = acpi_fetch_acpi_dev(handle);
 	struct acpi_power_resource *resource;
-	struct acpi_device *device = NULL;
 	union acpi_object acpi_object;
 	struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
 	acpi_status status;
 	u8 state_dummy;
 	int result;
 
-	acpi_bus_get_device(handle, &device);
 	if (device)
 		return device;
 

drivers/acpi/processor_driver.c

@@ -98,8 +98,13 @@ static int acpi_soft_cpu_online(unsigned int cpu)
 	struct acpi_processor *pr = per_cpu(processors, cpu);
 	struct acpi_device *device;
 
-	if (!pr || acpi_bus_get_device(pr->handle, &device))
+	if (!pr)
+		return 0;
+
+	device = acpi_fetch_acpi_dev(pr->handle);
+	if (!device)
 		return 0;
+
 	/*
 	 * CPU got physically hotplugged and onlined for the first time:
 	 * Initialize missing things.
@@ -125,9 +130,8 @@ static int acpi_soft_cpu_online(unsigned int cpu)
 static int acpi_soft_cpu_dead(unsigned int cpu)
 {
 	struct acpi_processor *pr = per_cpu(processors, cpu);
-	struct acpi_device *device;
 
-	if (!pr || acpi_bus_get_device(pr->handle, &device))
+	if (!pr || !acpi_fetch_acpi_dev(pr->handle))
 		return 0;
 
 	acpi_processor_reevaluate_tstate(pr, true);

drivers/acpi/processor_idle.c

@@ -1101,7 +1101,7 @@ static int acpi_processor_get_lpi_info(struct acpi_processor *pr)
 
 	status = acpi_get_parent(handle, &pr_ahandle);
 	while (ACPI_SUCCESS(status)) {
-		acpi_bus_get_device(pr_ahandle, &d);
+		d = acpi_fetch_acpi_dev(pr_ahandle);
 		handle = pr_ahandle;
 
 		if (strcmp(acpi_device_hid(d), ACPI_PROCESSOR_CONTAINER_HID))

drivers/acpi/property.c

@@ -687,9 +687,9 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 		if (index)
 			return -EINVAL;
 
-		ret = acpi_bus_get_device(obj->reference.handle, &device);
-		if (ret)
-			return ret == -ENODEV ? -EINVAL : ret;
+		device = acpi_fetch_acpi_dev(obj->reference.handle);
+		if (!device)
+			return -EINVAL;
 
 		args->fwnode = acpi_fwnode_handle(device);
 		args->nargs = 0;
@@ -719,9 +719,8 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 		if (element->type == ACPI_TYPE_LOCAL_REFERENCE) {
 			struct fwnode_handle *ref_fwnode;
 
-			ret = acpi_bus_get_device(element->reference.handle,
-						  &device);
-			if (ret)
+			device = acpi_fetch_acpi_dev(element->reference.handle);
+			if (!device)
 				return -EINVAL;
 
 			nargs = 0;

drivers/acpi/resource.c

@@ -791,9 +791,9 @@ static acpi_status acpi_res_consumer_cb(acpi_handle handle, u32 depth,
 {
 	struct resource *res = context;
 	struct acpi_device **consumer = (struct acpi_device **) ret;
-	struct acpi_device *adev;
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
 
-	if (acpi_bus_get_device(handle, &adev))
+	if (!adev)
 		return AE_OK;
 
 	if (acpi_dev_consumes_res(adev, res)) {