Merge branch 'simplify_PRT' into release

Conflicts:
	drivers/acpi/pci_irq.c

Note that this merge disables
e1d3a908
pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/pci_bind.c

@@ -99,7 +99,7 @@ acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
 	 */
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Device %s has PCI address %02x:%02x:%02x.%02x\n",
+			  "Device %s has PCI address %04x:%02x:%02x.%d\n",
 			  acpi_device_bid(device), id->segment, id->bus,
 			  id->device, id->function));
 
@@ -111,12 +111,11 @@ EXPORT_SYMBOL(acpi_get_pci_id);
 int acpi_pci_bind(struct acpi_device *device)
 {
 	int result = 0;
-	acpi_status status = AE_OK;
-	struct acpi_pci_data *data = NULL;
-	struct acpi_pci_data *pdata = NULL;
-	char *pathname = NULL;
-	struct acpi_buffer buffer = { 0, NULL };
-	acpi_handle handle = NULL;
+	acpi_status status;
+	struct acpi_pci_data *data;
+	struct acpi_pci_data *pdata;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	acpi_handle handle;
 	struct pci_dev *dev;
 	struct pci_bus *bus;
 
@@ -124,21 +123,18 @@ int acpi_pci_bind(struct acpi_device *device)
 	if (!device || !device->parent)
 		return -EINVAL;
 
-	pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
-	if (!pathname)
-		return -ENOMEM;
-	buffer.length = ACPI_PATHNAME_MAX;
-	buffer.pointer = pathname;
-
 	data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
-	if (!data) {
-		kfree(pathname);
+	if (!data)
 		return -ENOMEM;
+
+	status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+	if (ACPI_FAILURE(status)) {
+		kfree(data);
+		return -ENODEV;
 	}
 
-	acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI device [%s]...\n",
-			  pathname));
+			  (char *)buffer.pointer));
 
 	/* 
 	 * Segment & Bus
@@ -166,7 +162,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	data->id.device = device->pnp.bus_address >> 16;
 	data->id.function = device->pnp.bus_address & 0xFFFF;
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %02x:%02x:%02x.%02x\n",
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %04x:%02x:%02x.%d\n",
 			  data->id.segment, data->id.bus, data->id.device,
 			  data->id.function));
 
@@ -196,7 +192,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	}
 	if (!data->dev) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
+				  "Device %04x:%02x:%02x.%d not present in PCI namespace\n",
 				  data->id.segment, data->id.bus,
 				  data->id.device, data->id.function));
 		result = -ENODEV;
@@ -204,7 +200,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	}
 	if (!data->dev->bus) {
 		printk(KERN_ERR PREFIX
-			    "Device %02x:%02x:%02x.%02x has invalid 'bus' field\n",
+			    "Device %04x:%02x:%02x.%d has invalid 'bus' field\n",
 			    data->id.segment, data->id.bus,
 			    data->id.device, data->id.function);
 		result = -ENODEV;
@@ -219,7 +215,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	 */
 	if (data->dev->subordinate) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Device %02x:%02x:%02x.%02x is a PCI bridge\n",
+				  "Device %04x:%02x:%02x.%d is a PCI bridge\n",
 				  data->id.segment, data->id.bus,
 				  data->id.device, data->id.function));
 		data->bus = data->dev->subordinate;
@@ -262,7 +258,7 @@ int acpi_pci_bind(struct acpi_device *device)
 	}
 
       end:
-	kfree(pathname);
+	kfree(buffer.pointer);
 	if (result)
 		kfree(data);
 
@@ -272,25 +268,21 @@ int acpi_pci_bind(struct acpi_device *device)
 static int acpi_pci_unbind(struct acpi_device *device)
 {
 	int result = 0;
-	acpi_status status = AE_OK;
-	struct acpi_pci_data *data = NULL;
-	char *pathname = NULL;
-	struct acpi_buffer buffer = { 0, NULL };
+	acpi_status status;
+	struct acpi_pci_data *data;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
 
 	if (!device || !device->parent)
 		return -EINVAL;
 
-	pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
-	if (!pathname)
-		return -ENOMEM;
+	status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
 
-	buffer.length = ACPI_PATHNAME_MAX;
-	buffer.pointer = pathname;
-	acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unbinding PCI device [%s]...\n",
-			  pathname));
-	kfree(pathname);
+			  (char *) buffer.pointer));
+	kfree(buffer.pointer);
 
 	status =
 	    acpi_get_data(device->handle, acpi_pci_data_handler,
@@ -322,50 +314,44 @@ acpi_pci_bind_root(struct acpi_device *device,
 		   struct acpi_pci_id *id, struct pci_bus *bus)
 {
 	int result = 0;
-	acpi_status status = AE_OK;
+	acpi_status status;
 	struct acpi_pci_data *data = NULL;
-	char *pathname = NULL;
-	struct acpi_buffer buffer = { 0, NULL };
-
-	pathname = kzalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
-	if (!pathname)
-		return -ENOMEM;
-
-	buffer.length = ACPI_PATHNAME_MAX;
-	buffer.pointer = pathname;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
 	if (!device || !id || !bus) {
-		kfree(pathname);
 		return -EINVAL;
 	}
 
 	data = kzalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
-	if (!data) {
-		kfree(pathname);
+	if (!data)
 		return -ENOMEM;
-	}
 
 	data->id = *id;
 	data->bus = bus;
 	device->ops.bind = acpi_pci_bind;
 	device->ops.unbind = acpi_pci_unbind;
 
-	acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+	status = acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
+	if (ACPI_FAILURE(status)) {
+		kfree (data);
+		return -ENODEV;
+	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI root bridge [%s] to "
-			  "%02x:%02x\n", pathname, id->segment, id->bus));
+			"%04x:%02x\n", (char *)buffer.pointer,
+			id->segment, id->bus));
 
 	status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
 				"Unable to attach ACPI-PCI context to device %s",
-				pathname));
+				(char *)buffer.pointer));
 		result = -ENODEV;
 		goto end;
 	}
 
       end:
-	kfree(pathname);
+	kfree(buffer.pointer);
 	if (result != 0)
 		kfree(data);
 

include/acpi/platform/aclinux.h

@@ -71,9 +71,6 @@
 #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
 #define strtoul                     simple_strtoul
 
-/* Full namespace pathname length limit - arbitrary */
-#define ACPI_PATHNAME_MAX              256
-
 #else				/* !__KERNEL__ */
 
 #include <stdarg.h>

include/linux/acpi.h

@@ -131,22 +131,6 @@ extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
  */
 void acpi_unregister_gsi (u32 gsi);
 
-struct acpi_prt_entry {
-	struct list_head	node;
-	struct acpi_pci_id	id;
-	u8			pin;
-	struct {
-		acpi_handle		handle;
-		u32			index;
-	}			link;
-	u32			irq;
-};
-
-struct acpi_prt_list {
-	int			count;
-	struct list_head	entries;
-};
-
 struct pci_dev;
 
 int acpi_pci_irq_enable (struct pci_dev *dev);