driver-core: merge private parts of class and bus
As classes and busses are pretty much the same thing, and we want to
merge them together into a 'subsystem' in the future, let us share the
same private data parts to make that merge easier.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 2ca7f5b..19f49e4 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -1,31 +1,46 @@
/**
- * struct bus_type_private - structure to hold the private to the driver core portions of the bus_type structure.
+ * struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure.
*
- * @subsys - the struct kset that defines this bus. This is the main kobject
- * @drivers_kset - the list of drivers associated with this bus
- * @devices_kset - the list of devices associated with this bus
+ * @subsys - the struct kset that defines this subsystem
+ * @devices_kset - the list of devices associated
+ *
+ * @drivers_kset - the list of drivers associated
* @klist_devices - the klist to iterate over the @devices_kset
* @klist_drivers - the klist to iterate over the @drivers_kset
* @bus_notifier - the bus notifier list for anything that cares about things
- * on this bus.
+ * on this bus.
* @bus - pointer back to the struct bus_type that this structure is associated
- * with.
+ * with.
+ *
+ * @class_interfaces - list of class_interfaces associated
+ * @glue_dirs - "glue" directory to put in-between the parent device to
+ * avoid namespace conflicts
+ * @class_mutex - mutex to protect the children, devices, and interfaces lists.
+ * @class - pointer back to the struct class that this structure is associated
+ * with.
*
* This structure is the one that is the actual kobject allowing struct
- * bus_type to be statically allocated safely. Nothing outside of the driver
- * core should ever touch these fields.
+ * bus_type/class to be statically allocated safely. Nothing outside of the
+ * driver core should ever touch these fields.
*/
-struct bus_type_private {
+struct subsys_private {
struct kset subsys;
- struct kset *drivers_kset;
struct kset *devices_kset;
+
+ struct kset *drivers_kset;
struct klist klist_devices;
struct klist klist_drivers;
struct blocking_notifier_head bus_notifier;
unsigned int drivers_autoprobe:1;
struct bus_type *bus;
+
+ struct list_head class_interfaces;
+ struct kset glue_dirs;
+ struct mutex class_mutex;
+ struct class *class;
};
+#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj)
struct driver_private {
struct kobject kobj;
@@ -36,33 +51,6 @@
};
#define to_driver(obj) container_of(obj, struct driver_private, kobj)
-
-/**
- * struct class_private - structure to hold the private to the driver core portions of the class structure.
- *
- * @class_subsys - the struct kset that defines this class. This is the main kobject
- * @class_devices - list of devices associated with this class
- * @class_interfaces - list of class_interfaces associated with this class
- * @class_dirs - "glue" directory for virtual devices associated with this class
- * @class_mutex - mutex to protect the children, devices, and interfaces lists.
- * @class - pointer back to the struct class that this structure is associated
- * with.
- *
- * This structure is the one that is the actual kobject allowing struct
- * class to be statically allocated safely. Nothing outside of the driver
- * core should ever touch these fields.
- */
-struct class_private {
- struct kset class_subsys;
- struct klist class_devices;
- struct list_head class_interfaces;
- struct kset class_dirs;
- struct mutex class_mutex;
- struct class *class;
-};
-#define to_class(obj) \
- container_of(obj, struct class_private, class_subsys.kobj)
-
/**
* struct device_private - structure to hold the private to the driver core portions of the device structure.
*