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driver core: remove fields from struct bus_type

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struct bus_type is static everywhere in the kernel.  This moves the
kobject in the structure out of it, and a bunch of other private only to
the driver core fields are now moved to a private structure.  This lets
us dynamically create the backing kobject properly and gives us the
chance to be able to document to users exactly how to use the struct
bus_type as there are no fields they can improperly access.

Thanks to Kay for the build fixes on this patch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
2007-11-01 19:41:16 -07:00
parent b249072ee6
commit c6f7e72a3f
7 changed files with 104 additions and 70 deletions
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12
include/linux/device.h
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@@ -35,6 +35,7 @@ struct device_driver;
struct class;
struct class_device;
struct bus_type;
struct bus_type_private;
struct bus_attribute {
struct attribute attr;
@@ -51,15 +52,6 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
struct bus_type {
const char * name;
struct kset subsys;
struct kset *drivers_kset;
struct kset *devices_kset;
struct klist klist_devices;
struct klist klist_drivers;
struct blocking_notifier_head bus_notifier;
struct bus_attribute * bus_attrs;
struct device_attribute * dev_attrs;
struct driver_attribute * drv_attrs;
@@ -75,7 +67,7 @@ struct bus_type {
int (*resume_early)(struct device * dev);
int (*resume)(struct device * dev);
unsigned int drivers_autoprobe:1;
struct bus_type_private *p;
};
extern int __must_check bus_register(struct bus_type * bus);