class: move driver core specific parts to a private structure

This moves the portions of struct class that are dynamic (kobject and
lock and lists) out of the main structure and into a dynamic, private,
structure.


Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 5 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index c1f72984875f..b0556082179b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -35,6 +35,7 @@ struct device;
 struct device_driver;
 struct driver_private;
 struct class;
+struct class_private;
 struct bus_type;
 struct bus_type_private;
 
@@ -186,11 +187,6 @@ struct class {
         const char              *name;
         struct module           *owner;
 
-        struct kset             subsys;
-        struct list_head        devices;
-        struct list_head        interfaces;
-        struct kset             class_dirs;
-        struct semaphore        sem; /* locks children, devices, interfaces */
         struct class_attribute          *class_attrs;
         struct device_attribute         *dev_attrs;
         struct kobject                  *dev_kobj;
@@ -204,6 +200,7 @@ struct class {
         int (*resume)(struct device *dev);
 
         struct pm_ops *pm;
+        struct class_private *p;
 };
 
 extern struct kobject *sysfs_dev_block_kobj;