Merge remote-tracking branch 'driver-core/driver-core-next'

[karo-tx-linux.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 2a9d6ed5957903009d9ea7eea1050b2463b66b64..5e44cff5bced00273142f2fc5ed0621dff8acf3a 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -26,6 +26,7 @@
 #include <linux/atomic.h>
 #include <linux/ratelimit.h>
 #include <linux/uidgid.h>
+#include <linux/gfp.h>
 #include <asm/device.h>
 
 struct device;
@@ -63,9 +64,7 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
  * @name:      The name of the bus.
  * @dev_name:  Used for subsystems to enumerate devices like ("foo%u", dev->id).
  * @dev_root:  Default device to use as the parent.
- * @bus_attrs: Default attributes of the bus.
  * @dev_attrs: Default attributes of the devices on the bus.
- * @drv_attrs: Default attributes of the device drivers on the bus.
  * @bus_groups:        Default attributes of the bus.
  * @dev_groups:        Default attributes of the devices on the bus.
  * @drv_groups: Default attributes of the device drivers on the bus.
@@ -106,9 +105,7 @@ struct bus_type {
        const char              *name;
        const char              *dev_name;
        struct device           *dev_root;
-       struct bus_attribute    *bus_attrs;     /* use bus_groups instead */
        struct device_attribute *dev_attrs;     /* use dev_groups instead */
-       struct driver_attribute *drv_attrs;     /* use drv_groups instead */
        const struct attribute_group **bus_groups;
        const struct attribute_group **dev_groups;
        const struct attribute_group **drv_groups;
@@ -329,8 +326,6 @@ int subsys_virtual_register(struct bus_type *subsys,
  * @owner:     The module owner.
  * @class_attrs: Default attributes of this class.
  * @dev_groups:        Default attributes of the devices that belong to the class.
- * @dev_attrs: Default attributes of the devices belong to the class.
- * @dev_bin_attrs: Default binary attributes of the devices belong to the class.
  * @dev_kobj:  The kobject that represents this class and links it into the hierarchy.
  * @dev_uevent:        Called when a device is added, removed from this class, or a
  *             few other things that generate uevents to add the environment
@@ -358,9 +353,7 @@ struct class {
        struct module           *owner;
 
        struct class_attribute          *class_attrs;
-       struct device_attribute         *dev_attrs;     /* use dev_groups instead */
        const struct attribute_group    **dev_groups;
-       struct bin_attribute            *dev_bin_attrs;
        struct kobject                  *dev_kobj;
 
        int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
@@ -427,8 +420,6 @@ struct class_attribute {
                        char *buf);
        ssize_t (*store)(struct class *class, struct class_attribute *attr,
                        const char *buf, size_t count);
-       const void *(*namespace)(struct class *class,
-                                const struct class_attribute *attr);
 };
 
 #define CLASS_ATTR(_name, _mode, _show, _store) \
@@ -438,10 +429,24 @@ struct class_attribute {
 #define CLASS_ATTR_RO(_name) \
        struct class_attribute class_attr_##_name = __ATTR_RO(_name)
 
-extern int __must_check class_create_file(struct class *class,
-                                         const struct class_attribute *attr);
-extern void class_remove_file(struct class *class,
-                             const struct class_attribute *attr);
+extern int __must_check class_create_file_ns(struct class *class,
+                                            const struct class_attribute *attr,
+                                            const void *ns);
+extern void class_remove_file_ns(struct class *class,
+                                const struct class_attribute *attr,
+                                const void *ns);
+
+static inline int __must_check class_create_file(struct class *class,
+                                       const struct class_attribute *attr)
+{
+       return class_create_file_ns(class, attr, NULL);
+}
+
+static inline void class_remove_file(struct class *class,
+                                    const struct class_attribute *attr)
+{
+       return class_remove_file_ns(class, attr, NULL);
+}
 
 /* Simple class attribute that is just a static string */
 struct class_attribute_string {
@@ -602,8 +607,24 @@ extern void devres_close_group(struct device *dev, void *id);
 extern void devres_remove_group(struct device *dev, void *id);
 extern int devres_release_group(struct device *dev, void *id);
 
-/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
-extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+/* managed devm_k.alloc/kfree for device drivers */
+extern void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp);
+static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
+{
+       return devm_kmalloc(dev, size, gfp | __GFP_ZERO);
+}
+static inline void *devm_kmalloc_array(struct device *dev,
+                                      size_t n, size_t size, gfp_t flags)
+{
+       if (size != 0 && n > SIZE_MAX / size)
+               return NULL;
+       return devm_kmalloc(dev, n * size, flags);
+}
+static inline void *devm_kcalloc(struct device *dev,
+                                size_t n, size_t size, gfp_t flags)
+{
+       return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
+}
 extern void devm_kfree(struct device *dev, void *p);
 
 void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);