Pull now into release branch

Documentation/thinkpad-acpi.txt

···
 --------
 
 procfs: /proc/acpi/ibm/hotkey
-sysfs device attribute: hotkey/*
+sysfs device attribute: hotkey_*
 
 Without this driver, only the Fn-F4 key (sleep button) generates an
 ACPI event. With the driver loaded, the hotkey feature enabled and the
···
 
 sysfs notes:
 
-	The hot keys attributes are in a hotkey/ subdirectory off the
-	thinkpad device.
-
-	bios_enabled:
+	hotkey_bios_enabled:
 		Returns the status of the hot keys feature when
 		thinkpad-acpi was loaded.  Upon module unload, the hot
 		key feature status will be restored to this value.
···
 		0: hot keys were disabled
 		1: hot keys were enabled
 
-	bios_mask:
+	hotkey_bios_mask:
 		Returns the hot keys mask when thinkpad-acpi was loaded.
 		Upon module unload, the hot keys mask will be restored
 		to this value.
 
-	enable:
+	hotkey_enable:
 		Enables/disables the hot keys feature, and reports
 		current status of the hot keys feature.
 
 		0: disables the hot keys feature / feature disabled
 		1: enables the hot keys feature / feature enabled
 
-	mask:
+	hotkey_mask:
 		bit mask to enable ACPI event generation for each hot
 		key (see above).  Returns the current status of the hot
 		keys mask, and allows one to modify it.
···
 ---------
 
 procfs: /proc/acpi/ibm/bluetooth
-sysfs device attribute: bluetooth/enable
+sysfs device attribute: bluetooth_enable
 
 This feature shows the presence and current state of a ThinkPad
 Bluetooth device in the internal ThinkPad CDC slot.
···
 Sysfs notes:
 
 	If the Bluetooth CDC card is installed, it can be enabled /
-	disabled through the "bluetooth/enable" thinkpad-acpi device
+	disabled through the "bluetooth_enable" thinkpad-acpi device
 	attribute, and its current status can also be queried.
 
 	enable:
···
 		1: enables Bluetooth / Bluetooth is enabled.
 
 	Note: this interface will be probably be superseeded by the
-	generic rfkill class.
+	generic rfkill class, so it is NOT to be considered stable yet.
 
 Video output control -- /proc/acpi/ibm/video
 --------------------------------------------
···
 -----------------
 
 procfs: /proc/acpi/ibm/wan
-sysfs device attribute: wwan/enable
+sysfs device attribute: wwan_enable
 
 This feature is marked EXPERIMENTAL because the implementation
 directly accesses hardware registers and may not work as expected. USE
···
 Sysfs notes:
 
 	If the W-WAN card is installed, it can be enabled /
-	disabled through the "wwan/enable" thinkpad-acpi device
+	disabled through the "wwan_enable" thinkpad-acpi device
 	attribute, and its current status can also be queried.
 
 	enable:
···
 		1: enables WWAN card / WWAN card is enabled.
 
 	Note: this interface will be probably be superseeded by the
-	generic rfkill class.
+	generic rfkill class, so it is NOT to be considered stable yet.
 
 Multiple Commands, Module Parameters
 ------------------------------------

drivers/acpi/numa.c

···
 	return node_to_pxm_map[node];
 }
 
-int __cpuinit acpi_map_pxm_to_node(int pxm)
+int acpi_map_pxm_to_node(int pxm)
 {
 	int node = pxm_to_node_map[pxm];
 

drivers/acpi/tables/tbinstal.c

···
 		}
 	}
 
-	/* The table must be either an SSDT or a PSDT */
+	/* The table must be either an SSDT or a PSDT or an OEMx */
 
 	if ((!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT))
 	    &&
-	    (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)))
-	{
+	    (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT))
+	    && (strncmp(table_desc->pointer->signature, "OEM", 3))) {
 		ACPI_ERROR((AE_INFO,
-			    "Table has invalid signature [%4.4s], must be SSDT or PSDT",
+			    "Table has invalid signature [%4.4s], must be SSDT, PSDT or OEMx",
 			    table_desc->pointer->signature));
 		return_ACPI_STATUS(AE_BAD_SIGNATURE);
 	}

drivers/acpi/thermal.c

···
 static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
 {
 	struct acpi_thermal *tz = seq->private;
+	struct acpi_device *device;
 	int i = 0;
 	int j = 0;
 
···
 			   tz->trips.passive.tc1, tz->trips.passive.tc2,
 			   tz->trips.passive.tsp);
 		for (j = 0; j < tz->trips.passive.devices.count; j++) {
-
-			seq_printf(seq, "0x%p ",
-				   tz->trips.passive.devices.handles[j]);
+			acpi_bus_get_device(tz->trips.passive.devices.handles[j], &device);
+			seq_printf(seq, "%4.4s ", acpi_device_bid(device));
 		}
 		seq_puts(seq, "\n");
 	}
···
 		seq_printf(seq, "active[%d]:               %ld C: devices=",
 			   i,
 			   KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
-		for (j = 0; j < tz->trips.active[i].devices.count; j++)
-			seq_printf(seq, "0x%p ",
-				   tz->trips.active[i].devices.handles[j]);
+		for (j = 0; j < tz->trips.active[i].devices.count; j++){
+			acpi_bus_get_device(tz->trips.active[i].devices.handles[j], &device);
+			seq_printf(seq, "%4.4s ", acpi_device_bid(device));
+		}
 		seq_puts(seq, "\n");
 	}
 

drivers/acpi/utilities/utcopy.c

···
 				union acpi_operand_object **return_obj);
 
 static acpi_status
+acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
+				  union acpi_operand_object **internal_object);
+
+static acpi_status
 acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 			   union acpi_operand_object *dest_desc);
 
···
 	return_ACPI_STATUS(AE_NO_MEMORY);
 }
 
-#ifdef ACPI_FUTURE_IMPLEMENTATION
-/* Code to convert packages that are parameters to control methods */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_copy_epackage_to_ipackage
  *
- * PARAMETERS:  *internal_object   - Pointer to the object we are returning
- *              *Buffer            - Where the object is returned
- *              *space_used        - Where the length of the object is returned
+ * PARAMETERS:  external_object     - The external object to be converted
+ *              internal_object     - Where the internal object is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to place a package object in a user
- *              buffer.  A package object by definition contains other objects.
- *
- *              The buffer is assumed to have sufficient space for the object.
- *              The caller must have verified the buffer length needed using the
- *              acpi_ut_get_object_size function before calling this function.
+ * DESCRIPTION: Copy an external package object to an internal package.
+ *              Handles nested packages.
  *
  ******************************************************************************/
 
 static acpi_status
-acpi_ut_copy_epackage_to_ipackage(union acpi_operand_object *internal_object,
-				  u8 * buffer, u32 * space_used)
+acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
+				  union acpi_operand_object **internal_object)
 {
-	u8 *free_space;
-	union acpi_object *external_object;
-	u32 length = 0;
-	u32 this_index;
-	u32 object_space = 0;
-	union acpi_operand_object *this_internal_obj;
-	union acpi_object *this_external_obj;
+	acpi_status status = AE_OK;
+	union acpi_operand_object *package_object;
+	union acpi_operand_object **package_elements;
+	acpi_native_uint i;
 
 	ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
 
-	/*
-	 * First package at head of the buffer
-	 */
-	external_object = (union acpi_object *)buffer;
+	/* Create the package object */
+
+	package_object =
+	    acpi_ut_create_package_object(external_object->package.count);
+	if (!package_object) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	package_elements = package_object->package.elements;
 
 	/*
-	 * Free space begins right after the first package
+	 * Recursive implementation. Probably ok, since nested external packages
+	 * as parameters should be very rare.
 	 */
-	free_space = buffer + sizeof(union acpi_object);
+	for (i = 0; i < external_object->package.count; i++) {
+		status =
+		    acpi_ut_copy_eobject_to_iobject(&external_object->package.
+						    elements[i],
+						    &package_elements[i]);
+		if (ACPI_FAILURE(status)) {
 
-	external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
-	external_object->package.count = internal_object->package.count;
-	external_object->package.elements = (union acpi_object *)free_space;
+			/* Truncate package and delete it */
 
-	/*
-	 * Build an array of ACPI_OBJECTS in the buffer
-	 * and move the free space past it
-	 */
-	free_space +=
-	    external_object->package.count * sizeof(union acpi_object);
+			package_object->package.count = i;
+			package_elements[i] = NULL;
+			acpi_ut_remove_reference(package_object);
+			return_ACPI_STATUS(status);
+		}
+	}
 
-	/* Call walk_package */
-
+	*internal_object = package_object;
+	return_ACPI_STATUS(status);
 }
-
-#endif				/* Future implementation */
 
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_copy_eobject_to_iobject
  *
- * PARAMETERS:  *internal_object   - The external object to be converted
- *              *buffer_ptr     - Where the internal object is returned
+ * PARAMETERS:  external_object     - The external object to be converted
+ *              internal_object     - Where the internal object is returned
  *
- * RETURN:      Status          - the status of the call
+ * RETURN:      Status              - the status of the call
  *
  * DESCRIPTION: Converts an external object to an internal object.
  *
···
 	ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
 
 	if (external_object->type == ACPI_TYPE_PACKAGE) {
-		/*
-		 * Packages as external input to control methods are not supported,
-		 */
-		ACPI_ERROR((AE_INFO,
-			    "Packages as parameters not implemented!"));
-
-		return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
-	}
-
-	else {
+		status =
+		    acpi_ut_copy_epackage_to_ipackage(external_object,
+						      internal_object);
+	} else {
 		/*
 		 * Build a simple object (no nested objects)
 		 */
···
 		 * Create and build the package object
 		 */
 		target_object =
-		    acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+		    acpi_ut_create_package_object(source_object->package.count);
 		if (!target_object) {
 			return (AE_NO_MEMORY);
 		}
 
-		target_object->package.count = source_object->package.count;
 		target_object->common.flags = source_object->common.flags;
 
-		/*
-		 * Create the object array
-		 */
-		target_object->package.elements =
-		    ACPI_ALLOCATE_ZEROED(((acpi_size) source_object->package.
-					  count + 1) * sizeof(void *));
-		if (!target_object->package.elements) {
-			status = AE_NO_MEMORY;
-			goto error_exit;
-		}
+		/* Pass the new package object back to the package walk routine */
 
-		/*
-		 * Pass the new package object back to the package walk routine
-		 */
 		state->pkg.this_target_obj = target_object;
 
-		/*
-		 * Store the object pointer in the parent package object
-		 */
+		/* Store the object pointer in the parent package object */
+
 		*this_target_ptr = target_object;
 		break;
 

drivers/acpi/utilities/utobject.c

···
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_create_package_object
+ *
+ * PARAMETERS:  Count               - Number of package elements
+ *
+ * RETURN:      Pointer to a new Package object, null on failure
+ *
+ * DESCRIPTION: Create a fully initialized package object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_package_object(u32 count)
+{
+	union acpi_operand_object *package_desc;
+	union acpi_operand_object **package_elements;
+
+	ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count);
+
+	/* Create a new Package object */
+
+	package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+	if (!package_desc) {
+		return_PTR(NULL);
+	}
+
+	/*
+	 * Create the element array. Count+1 allows the array to be null
+	 * terminated.
+	 */
+	package_elements = ACPI_ALLOCATE_ZEROED((acpi_size)
+						(count + 1) * sizeof(void *));
+	if (!package_elements) {
+		ACPI_FREE(package_desc);
+		return_PTR(NULL);
+	}
+
+	package_desc->package.count = count;
+	package_desc->package.elements = package_elements;
+	return_PTR(package_desc);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_create_buffer_object
  *
  * PARAMETERS:  buffer_size            - Size of buffer to be created

drivers/misc/thinkpad_acpi.c

···
 }
 
 static struct device_attribute dev_attr_hotkey_enable =
-	__ATTR(enable, S_IWUSR | S_IRUGO,
+	__ATTR(hotkey_enable, S_IWUSR | S_IRUGO,
 		hotkey_enable_show, hotkey_enable_store);
 
 /* sysfs hotkey mask --------------------------------------------------- */
···
 }
 
 static struct device_attribute dev_attr_hotkey_mask =
-	__ATTR(mask, S_IWUSR | S_IRUGO,
+	__ATTR(hotkey_mask, S_IWUSR | S_IRUGO,
 		hotkey_mask_show, hotkey_mask_store);
 
 /* sysfs hotkey bios_enabled ------------------------------------------- */
···
 }
 
 static struct device_attribute dev_attr_hotkey_bios_enabled =
-	__ATTR(bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL);
+	__ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL);
 
 /* sysfs hotkey bios_mask ---------------------------------------------- */
 static ssize_t hotkey_bios_mask_show(struct device *dev,
···
 }
 
 static struct device_attribute dev_attr_hotkey_bios_mask =
-	__ATTR(bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL);
+	__ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL);
 
 /* --------------------------------------------------------------------- */
 
···
 		str_supported(tp_features.hotkey));
 
 	if (tp_features.hotkey) {
-		hotkey_dev_attributes = create_attr_set(4,
-						TPACPI_HOTKEY_SYSFS_GROUP);
+		hotkey_dev_attributes = create_attr_set(4, NULL);
 		if (!hotkey_dev_attributes)
 			return -ENOMEM;
 		res = add_to_attr_set(hotkey_dev_attributes,
···
 }
 
 static struct device_attribute dev_attr_bluetooth_enable =
-	__ATTR(enable, S_IWUSR | S_IRUGO,
+	__ATTR(bluetooth_enable, S_IWUSR | S_IRUGO,
 		bluetooth_enable_show, bluetooth_enable_store);
 
 /* --------------------------------------------------------------------- */
···
 };
 
 static const struct attribute_group bluetooth_attr_group = {
-	.name = TPACPI_BLUETH_SYSFS_GROUP,
 	.attrs = bluetooth_attributes,
 };
 
···
 }
 
 static struct device_attribute dev_attr_wan_enable =
-	__ATTR(enable, S_IWUSR | S_IRUGO,
+	__ATTR(wwan_enable, S_IWUSR | S_IRUGO,
 		wan_enable_show, wan_enable_store);
 
 /* --------------------------------------------------------------------- */
···
 };
 
 static const struct attribute_group wan_attr_group = {
-	.name = TPACPI_WAN_SYSFS_GROUP,
 	.attrs = wan_attributes,
 };
 

drivers/misc/thinkpad_acpi.h

···
  * Bluetooth subdriver
  */
 
-#define TPACPI_BLUETH_SYSFS_GROUP "bluetooth"
-
 enum {
 	/* ACPI GBDC/SBDC bits */
 	TP_ACPI_BLUETOOTH_HWPRESENT	= 0x01,	/* Bluetooth hw available */
···
  * Hotkey subdriver
  */
 
-#define TPACPI_HOTKEY_SYSFS_GROUP "hotkey"
-
 static int hotkey_orig_status;
 static int hotkey_orig_mask;
 
···
 /*
  * Wan subdriver
  */
-
-#define TPACPI_WAN_SYSFS_GROUP "wwan"
 
 enum {
 	/* ACPI GWAN/SWAN bits */

include/acpi/acpi_numa.h

···
 
 extern int pxm_to_node(int);
 extern int node_to_pxm(int);
-extern int __cpuinit acpi_map_pxm_to_node(int);
+extern int acpi_map_pxm_to_node(int);
 extern void __cpuinit acpi_unmap_pxm_to_node(int);
 
 #endif				/* CONFIG_ACPI_NUMA */

include/acpi/acutils.h

···
 
 u8 acpi_ut_valid_internal_object(void *object);
 
+union acpi_operand_object *acpi_ut_create_package_object(u32 count);
+
 union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size);
 
 union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size);