class: add lockdep infrastructure

[pandora-kernel.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 6a2d04c..0e1d24c 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -16,6 +16,7 @@
 #include <linux/kobject.h>
 #include <linux/klist.h>
 #include <linux/list.h>
+#include <linux/lockdep.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/module.h>
@@ -35,6 +36,7 @@ struct device;
 struct device_driver;
 struct driver_private;
 struct class;
+struct class_private;
 struct bus_type;
 struct bus_type_private;
 
@@ -68,6 +70,8 @@ struct bus_type {
        int (*resume_early)(struct device *dev);
        int (*resume)(struct device *dev);
 
+       struct pm_ext_ops *pm;
+
        struct bus_type_private *p;
 };
 
@@ -131,6 +135,8 @@ struct device_driver {
        int (*resume) (struct device *dev);
        struct attribute_group **groups;
 
+       struct pm_ops *pm;
+
        struct driver_private *p;
 };
 
@@ -182,13 +188,9 @@ 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;
 
        int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
 
@@ -197,13 +199,30 @@ struct class {
 
        int (*suspend)(struct device *dev, pm_message_t state);
        int (*resume)(struct device *dev);
+
+       struct pm_ops *pm;
+       struct class_private *p;
 };
 
-extern int __must_check class_register(struct class *class);
+extern struct kobject *sysfs_dev_block_kobj;
+extern struct kobject *sysfs_dev_char_kobj;
+extern int __must_check __class_register(struct class *class,
+                                        struct lock_class_key *key);
 extern void class_unregister(struct class *class);
-extern int class_for_each_device(struct class *class, void *data,
+
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_register(class)                  \
+({                                             \
+       static struct lock_class_key __key;     \
+       __class_register(class, &__key);        \
+})
+
+extern int class_for_each_device(struct class *class, struct device *start,
+                                void *data,
                                 int (*fn)(struct device *dev, void *data));
-extern struct device *class_find_device(struct class *class, void *data,
+extern struct device *class_find_device(struct class *class,
+                                       struct device *start, void *data,
                                        int (*match)(struct device *, void *));
 
 struct class_attribute {
@@ -231,9 +250,19 @@ struct class_interface {
 extern int __must_check class_interface_register(struct class_interface *);
 extern void class_interface_unregister(struct class_interface *);
 
-extern struct class *class_create(struct module *owner, const char *name);
+extern struct class * __must_check __class_create(struct module *owner,
+                                                 const char *name,
+                                                 struct lock_class_key *key);
 extern void class_destroy(struct class *cls);
 
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_create(owner, name)              \
+({                                             \
+       static struct lock_class_key __key;     \
+       __class_create(owner, name, &__key);    \
+})
+
 /*
  * The type of device, "struct device" is embedded in. A class
  * or bus can contain devices of different types
@@ -248,8 +277,11 @@ struct device_type {
        struct attribute_group **groups;
        int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
        void (*release)(struct device *dev);
+
        int (*suspend)(struct device *dev, pm_message_t state);
        int (*resume)(struct device *dev);
+
+       struct pm_ops *pm;
 };
 
 /* interface for exporting device attributes */
@@ -459,14 +491,10 @@ extern struct device *device_create_vargs(struct class *cls,
                                          const char *fmt,
                                          va_list vargs);
 extern struct device *device_create(struct class *cls, struct device *parent,
-                                   dev_t devt, const char *fmt, ...)
-                                   __attribute__((format(printf, 4, 5)));
-extern struct device *device_create_drvdata(struct class *cls,
-                                           struct device *parent,
-                                           dev_t devt,
-                                           void *drvdata,
-                                           const char *fmt, ...)
+                                   dev_t devt, void *drvdata,
+                                   const char *fmt, ...)
                                    __attribute__((format(printf, 5, 6)));
+#define device_create_drvdata  device_create
 extern void device_destroy(struct class *cls, dev_t devt);
 
 /*