3 files changed, 69 insertions, 20 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 6a8276f683b6..516fecacf27b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -84,9 +84,8 @@ struct device *bus_find_device_by_name(struct bus_type *bus,
                                        struct device *start,
                                        const char *name);
 
-int __must_check bus_for_each_drv(struct bus_type *bus,
-                                  struct device_driver *start, void *data,
-                                  int (*fn)(struct device_driver *, void *));
+int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
+                     void *data, int (*fn)(struct device_driver *, void *));
 
 void bus_sort_breadthfirst(struct bus_type *bus,
                            int (*compare)(const struct device *a,
@@ -110,10 +109,12 @@ extern int bus_unregister_notifier(struct bus_type *bus,
  */
 #define BUS_NOTIFY_ADD_DEVICE           0x00000001 /* device added */
 #define BUS_NOTIFY_DEL_DEVICE           0x00000002 /* device removed */
-#define BUS_NOTIFY_BOUND_DRIVER         0x00000003 /* driver bound to device */
-#define BUS_NOTIFY_UNBIND_DRIVER        0x00000004 /* driver about to be
+#define BUS_NOTIFY_BIND_DRIVER          0x00000003 /* driver about to be
+                                                      bound */
+#define BUS_NOTIFY_BOUND_DRIVER         0x00000004 /* driver bound to device */
+#define BUS_NOTIFY_UNBIND_DRIVER        0x00000005 /* driver about to be
                                                       unbound */
-#define BUS_NOTIFY_UNBOUND_DRIVER       0x00000005 /* driver is unbound
+#define BUS_NOTIFY_UNBOUND_DRIVER       0x00000006 /* driver is unbound
                                                       from the device */
 
 extern struct kset *bus_get_kset(struct bus_type *bus);
@@ -551,7 +552,7 @@ extern int device_for_each_child(struct device *dev, void *data,
                      int (*fn)(struct device *dev, void *data));
 extern struct device *device_find_child(struct device *dev, void *data,
                                 int (*match)(struct device *dev, void *data));
-extern int device_rename(struct device *dev, char *new_name);
+extern int device_rename(struct device *dev, const char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
                        enum dpm_order dpm_order);
 extern const char *device_get_devnode(struct device *dev,
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 5417944d3687..d7ecad0093bb 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -43,10 +43,64 @@ extern struct resource *platform_get_resource_byname(struct platform_device *, u
 extern int platform_get_irq_byname(struct platform_device *, const char *);
 extern int platform_add_devices(struct platform_device **, int);
 
-extern struct platform_device *platform_device_register_simple(const char *, int id,
-                                        const struct resource *, unsigned int);
-extern struct platform_device *platform_device_register_data(struct device *,
-                const char *, int, const void *, size_t);
+extern struct platform_device *platform_device_register_resndata(
+                struct device *parent, const char *name, int id,
+                const struct resource *res, unsigned int num,
+                const void *data, size_t size);
+
+/**
+ * platform_device_register_simple - add a platform-level device and its resources
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @res: set of resources that needs to be allocated for the device
+ * @num: number of resources
+ *
+ * This function creates a simple platform device that requires minimal
+ * resource and memory management. Canned release function freeing memory
+ * allocated for the device allows drivers using such devices to be
+ * unloaded without waiting for the last reference to the device to be
+ * dropped.
+ *
+ * This interface is primarily intended for use with legacy drivers which
+ * probe hardware directly.  Because such drivers create sysfs device nodes
+ * themselves, rather than letting system infrastructure handle such device
+ * enumeration tasks, they don't fully conform to the Linux driver model.
+ * In particular, when such drivers are built as modules, they can't be
+ * "hotplugged".
+ *
+ * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
+ */
+static inline struct platform_device *platform_device_register_simple(
+                const char *name, int id,
+                const struct resource *res, unsigned int num)
+{
+        return platform_device_register_resndata(NULL, name, id,
+                        res, num, NULL, 0);
+}
+
+/**
+ * platform_device_register_data - add a platform-level device with platform-specific data
+ * @parent: parent device for the device we're adding
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @data: platform specific data for this platform device
+ * @size: size of platform specific data
+ *
+ * This function creates a simple platform device that requires minimal
+ * resource and memory management. Canned release function freeing memory
+ * allocated for the device allows drivers using such devices to be
+ * unloaded without waiting for the last reference to the device to be
+ * dropped.
+ *
+ * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
+ */
+static inline struct platform_device *platform_device_register_data(
+                struct device *parent, const char *name, int id,
+                const void *data, size_t size)
+{
+        return platform_device_register_resndata(parent, name, id,
+                        NULL, 0, data, size);
+}
 
 extern struct platform_device *platform_device_alloc(const char *name, int id);
 extern int platform_device_add_resources(struct platform_device *pdev,
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index f2694eb4dd3d..3c92121ba9af 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -22,14 +22,8 @@ struct kobject;
 struct module;
 enum kobj_ns_type;
 
-/* FIXME
- * The *owner field is no longer used.
- * x86 tree has been cleaned up. The owner
- * attribute is still left for other arches.
- */
 struct attribute {
         const char              *name;
-        struct module           *owner;
         mode_t                  mode;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
         struct lock_class_key   *key;
@@ -136,8 +130,8 @@ int __must_check sysfs_create_file(struct kobject *kobj,
                                    const struct attribute *attr);
 int __must_check sysfs_create_files(struct kobject *kobj,
                                    const struct attribute **attr);
-int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
-                                  mode_t mode);
+int __must_check sysfs_chmod_file(struct kobject *kobj,
+                                  const struct attribute *attr, mode_t mode);
 void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
 void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
 
@@ -225,7 +219,7 @@ static inline int sysfs_create_files(struct kobject *kobj,
 }
 
 static inline int sysfs_chmod_file(struct kobject *kobj,
-                                   struct attribute *attr, mode_t mode)
+                                   const struct attribute *attr, mode_t mode)
 {
         return 0;
 }