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driver-core: merge private parts of class and bus

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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>
This commit is contained in:
Kay Sievers
2010-11-15 23:13:18 +01:00
committed by Greg Kroah-Hartman
parent 14c05aa399
commit 6b6e39a6a8
5 changed files with 64 additions and 78 deletions
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62
drivers/base/base.h
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@@ -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 @@ struct driver_private {
};
#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.
*