Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks

1 files changed, 68 insertions, 27 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index f71a78d123ae..1a3686d15f98 100644
--- 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>
@@ -24,17 +25,13 @@
 #include <asm/atomic.h>
 #include <asm/device.h>
 
-#define DEVICE_NAME_SIZE	50
-/* DEVICE_NAME_HALF is really less than half to accommodate slop */
-#define DEVICE_NAME_HALF	__stringify(20)
-#define DEVICE_ID_SIZE		32
-#define BUS_ID_SIZE		KOBJ_NAME_LEN
-
+#define BUS_ID_SIZE		20
 
 struct device;
 struct device_driver;
 struct driver_private;
 struct class;
+struct class_private;
 struct bus_type;
 struct bus_type_private;
 
@@ -93,6 +90,9 @@ int __must_check 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,
+					  const struct device *b));
 /*
  * Bus notifiers: Get notified of addition/removal of devices
  * and binding/unbinding of drivers to devices.
@@ -186,13 +186,9 @@ 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);
 
@@ -203,13 +199,40 @@ struct class {
 	int (*resume)(struct device *dev);
 
 	struct pm_ops *pm;
+	struct class_private *p;
+};
+
+struct class_dev_iter {
+	struct klist_iter		ki;
+	const struct device_type	*type;
 };
 
-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 void class_dev_iter_init(struct class_dev_iter *iter,
+				struct class *class,
+				struct device *start,
+				const struct device_type *type);
+extern struct device *class_dev_iter_next(struct class_dev_iter *iter);
+extern void class_dev_iter_exit(struct class_dev_iter *iter);
+
+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 {
@@ -237,9 +260,19 @@ 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
@@ -340,6 +373,7 @@ struct device {
 
 	struct kobject kobj;
 	char	bus_id[BUS_ID_SIZE];	/* position on parent bus */
+	const char		*init_name; /* initial name of the device */
 	struct device_type	*type;
 	unsigned		uevent_suppress:1;
 
@@ -377,7 +411,7 @@ struct device {
 	spinlock_t		devres_lock;
 	struct list_head	devres_head;
 
-	struct list_head	node;
+	struct klist_node	knode_class;
 	struct class		*class;
 	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
 	struct attribute_group	**groups;	/* optional groups */
@@ -388,7 +422,7 @@ struct device {
 /* Get the wakeup routines, which depend on struct device */
 #include <linux/pm_wakeup.h>
 
-static inline const char *dev_name(struct device *dev)
+static inline const char *dev_name(const struct device *dev)
 {
 	/* will be changed into kobject_name(&dev->kobj) in the near future */
 	return dev->bus_id;
@@ -416,7 +450,7 @@ static inline void set_dev_node(struct device *dev, int node)
 }
 #endif
 
-static inline void *dev_get_drvdata(struct device *dev)
+static inline void *dev_get_drvdata(const struct device *dev)
 {
 	return dev->driver_data;
 }
@@ -468,13 +502,8 @@ 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)));
 extern void device_destroy(struct class *cls, dev_t devt);
 
@@ -504,7 +533,7 @@ extern void device_shutdown(void);
 extern void sysdev_shutdown(void);
 
 /* debugging and troubleshooting/diagnostic helpers. */
-extern const char *dev_driver_string(struct device *dev);
+extern const char *dev_driver_string(const struct device *dev);
 #define dev_printk(level, dev, format, arg...)	\
 	printk(level "%s %s: " format , dev_driver_string(dev) , \
 	       dev_name(dev) , ## arg)
@@ -524,7 +553,11 @@ extern const char *dev_driver_string(struct device *dev);
 #define dev_info(dev, format, arg...)		\
 	dev_printk(KERN_INFO , dev , format , ## arg)
 
-#ifdef DEBUG
+#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#define dev_dbg(dev, format, ...) do { \
+	dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
+	} while (0)
+#elif defined(DEBUG)
 #define dev_dbg(dev, format, arg...)		\
 	dev_printk(KERN_DEBUG , dev , format , ## arg)
 #else
@@ -540,6 +573,14 @@ extern const char *dev_driver_string(struct device *dev);
 	({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
 #endif
 
+/*
+ * dev_WARN() acts like dev_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define dev_WARN(dev, format, arg...) \
+	WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
+
 /* Create alias, so I can be autoloaded. */
 #define MODULE_ALIAS_CHARDEV(major,minor) \
 	MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))