Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6

Trivial manual merge fixup for usb_find_interface clashes.

37 files changed, 451 insertions, 295 deletions

diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 27ec12c1fab0..b69a8cad82b7 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -172,21 +172,21 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 			if (ACPI_FAILURE(status) || !device) {
 				result = container_device_add(&device, handle);
 				if (!result)
-					kobject_hotplug(&device->kobj,
-							KOBJ_ONLINE);
+					kobject_uevent(&device->kobj,
+						       KOBJ_ONLINE);
 				else
 					printk("Failed to add container\n");
 			}
 		} else {
 			if (ACPI_SUCCESS(status)) {
 				/* device exist and this is a remove request */
-				kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
+				kobject_uevent(&device->kobj, KOBJ_OFFLINE);
 			}
 		}
 		break;
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		if (!acpi_bus_get_device(handle, &device) && device) {
-			kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
+			kobject_uevent(&device->kobj, KOBJ_OFFLINE);
 		}
 		break;
 	default:
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 0c561c571f29..1278aca96fe3 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -748,7 +748,7 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
 		return_VALUE(-ENODEV);
 
 	if ((pr->id >= 0) && (pr->id < NR_CPUS)) {
-		kobject_hotplug(&(*device)->kobj, KOBJ_ONLINE);
+		kobject_uevent(&(*device)->kobj, KOBJ_ONLINE);
 	}
 	return_VALUE(0);
 }
@@ -788,13 +788,13 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
 		}
 
 		if (pr->id >= 0 && (pr->id < NR_CPUS)) {
-			kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
+			kobject_uevent(&device->kobj, KOBJ_OFFLINE);
 			break;
 		}
 
 		result = acpi_processor_start(device);
 		if ((!result) && ((pr->id >= 0) && (pr->id < NR_CPUS))) {
-			kobject_hotplug(&device->kobj, KOBJ_ONLINE);
+			kobject_uevent(&device->kobj, KOBJ_ONLINE);
 		} else {
 			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
 					  "Device [%s] failed to start\n",
@@ -818,7 +818,7 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
 		}
 
 		if ((pr->id < NR_CPUS) && (cpu_present(pr->id)))
-			kobject_hotplug(&device->kobj, KOBJ_OFFLINE);
+			kobject_uevent(&device->kobj, KOBJ_OFFLINE);
 		break;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 31218e1d2a18..0745d20afb8c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -78,7 +78,7 @@ static struct kobj_type ktype_acpi_ns = {
 	.release = acpi_device_release,
 };
 
-static int namespace_hotplug(struct kset *kset, struct kobject *kobj,
+static int namespace_uevent(struct kset *kset, struct kobject *kobj,
 			     char **envp, int num_envp, char *buffer,
 			     int buffer_size)
 {
@@ -89,8 +89,8 @@ static int namespace_hotplug(struct kset *kset, struct kobject *kobj,
 	if (!dev->driver)
 		return 0;
 
-	if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size, &len,
-				"PHYSDEVDRIVER=%s", dev->driver->name))
+	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+			   "PHYSDEVDRIVER=%s", dev->driver->name))
 		return -ENOMEM;
 
 	envp[i] = NULL;
@@ -98,8 +98,8 @@ static int namespace_hotplug(struct kset *kset, struct kobject *kobj,
 	return 0;
 }
 
-static struct kset_hotplug_ops namespace_hotplug_ops = {
-	.hotplug = &namespace_hotplug,
+static struct kset_uevent_ops namespace_uevent_ops = {
+	.uevent = &namespace_uevent,
 };
 
 static struct kset acpi_namespace_kset = {
@@ -108,7 +108,7 @@ static struct kset acpi_namespace_kset = {
 		 },
 	.subsys = &acpi_subsys,
 	.ktype = &ktype_acpi_ns,
-	.hotplug_ops = &namespace_hotplug_ops,
+	.uevent_ops = &namespace_uevent_ops,
 };
 
 static void acpi_device_register(struct acpi_device *device,
@@ -347,7 +347,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 }
 
 /* --------------------------------------------------------------------------
-		ACPI hotplug sysfs device file support
+		ACPI sysfs device file support
    -------------------------------------------------------------------------- */
 static ssize_t acpi_eject_store(struct acpi_device *device,
 				const char *buf, size_t count);
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 934149c1512b..f0eff3dac58d 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -19,11 +19,11 @@ config PREVENT_FIRMWARE_BUILD
 	  If unsure say Y here.
 
 config FW_LOADER
-	tristate "Hotplug firmware loading support"
+	tristate "Userspace firmware loading support"
 	select HOTPLUG
 	---help---
 	  This option is provided for the case where no in-kernel-tree modules
-	  require hotplug firmware loading support, but a module built outside
+	  require userspace firmware loading support, but a module built outside
 	  the kernel tree does.
 
 config DEBUG_DRIVER
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index fa601b085eba..29f6af554e71 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -152,7 +152,11 @@ static ssize_t driver_unbind(struct device_driver *drv,
 
 	dev = bus_find_device(bus, NULL, (void *)buf, driver_helper);
 	if (dev && dev->driver == drv) {
+		if (dev->parent)	/* Needed for USB */
+			down(&dev->parent->sem);
 		device_release_driver(dev);
+		if (dev->parent)
+			up(&dev->parent->sem);
 		err = count;
 	}
 	put_device(dev);
@@ -175,9 +179,13 @@ static ssize_t driver_bind(struct device_driver *drv,
 
 	dev = bus_find_device(bus, NULL, (void *)buf, driver_helper);
 	if (dev && dev->driver == NULL) {
+		if (dev->parent)	/* Needed for USB */
+			down(&dev->parent->sem);
 		down(&dev->sem);
 		err = driver_probe_device(drv, dev);
 		up(&dev->sem);
+		if (dev->parent)
+			up(&dev->parent->sem);
 	}
 	put_device(dev);
 	put_bus(bus);
@@ -420,6 +428,26 @@ static void driver_remove_attrs(struct bus_type * bus, struct device_driver * dr
 	}
 }
 
+#ifdef CONFIG_HOTPLUG
+/*
+ * Thanks to drivers making their tables __devinit, we can't allow manual
+ * bind and unbind from userspace unless CONFIG_HOTPLUG is enabled.
+ */
+static void add_bind_files(struct device_driver *drv)
+{
+	driver_create_file(drv, &driver_attr_unbind);
+	driver_create_file(drv, &driver_attr_bind);
+}
+
+static void remove_bind_files(struct device_driver *drv)
+{
+	driver_remove_file(drv, &driver_attr_bind);
+	driver_remove_file(drv, &driver_attr_unbind);
+}
+#else
+static inline void add_bind_files(struct device_driver *drv) {}
+static inline void remove_bind_files(struct device_driver *drv) {}
+#endif
 
 /**
  *	bus_add_driver - Add a driver to the bus.
@@ -449,8 +477,7 @@ int bus_add_driver(struct device_driver * drv)
 		module_add_driver(drv->owner, drv);
 
 		driver_add_attrs(bus, drv);
-		driver_create_file(drv, &driver_attr_unbind);
-		driver_create_file(drv, &driver_attr_bind);
+		add_bind_files(drv);
 	}
 	return error;
 }
@@ -468,8 +495,7 @@ int bus_add_driver(struct device_driver * drv)
 void bus_remove_driver(struct device_driver * drv)
 {
 	if (drv->bus) {
-		driver_remove_file(drv, &driver_attr_bind);
-		driver_remove_file(drv, &driver_attr_unbind);
+		remove_bind_files(drv);
 		driver_remove_attrs(drv->bus, drv);
 		klist_remove(&drv->knode_bus);
 		pr_debug("bus %s: remove driver %s\n", drv->bus->name, drv->name);
@@ -484,8 +510,13 @@ void bus_remove_driver(struct device_driver * drv)
 /* Helper for bus_rescan_devices's iter */
 static int bus_rescan_devices_helper(struct device *dev, void *data)
 {
-	if (!dev->driver)
+	if (!dev->driver) {
+		if (dev->parent)	/* Needed for USB */
+			down(&dev->parent->sem);
 		device_attach(dev);
+		if (dev->parent)
+			up(&dev->parent->sem);
+	}
 	return 0;
 }
 
diff --git a/drivers/base/class.c b/drivers/base/class.c
index db65fd0babe9..df7fdabd0730 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -178,7 +178,7 @@ static void class_device_create_release(struct class_device *class_dev)
 }
 
 /* needed to allow these devices to have parent class devices */
-static int class_device_create_hotplug(struct class_device *class_dev,
+static int class_device_create_uevent(struct class_device *class_dev,
 				       char **envp, int num_envp,
 				       char *buffer, int buffer_size)
 {
@@ -331,7 +331,7 @@ static struct kobj_type ktype_class_device = {
 	.release	= class_dev_release,
 };
 
-static int class_hotplug_filter(struct kset *kset, struct kobject *kobj)
+static int class_uevent_filter(struct kset *kset, struct kobject *kobj)
 {
 	struct kobj_type *ktype = get_ktype(kobj);
 
@@ -343,14 +343,14 @@ static int class_hotplug_filter(struct kset *kset, struct kobject *kobj)
 	return 0;
 }
 
-static const char *class_hotplug_name(struct kset *kset, struct kobject *kobj)
+static const char *class_uevent_name(struct kset *kset, struct kobject *kobj)
 {
 	struct class_device *class_dev = to_class_dev(kobj);
 
 	return class_dev->class->name;
 }
 
-static int class_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
+static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
 			 int num_envp, char *buffer, int buffer_size)
 {
 	struct class_device *class_dev = to_class_dev(kobj);
@@ -365,29 +365,29 @@ static int class_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 		struct device *dev = class_dev->dev;
 		char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
 
-		add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
-				    &length, "PHYSDEVPATH=%s", path);
+		add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
+			       &length, "PHYSDEVPATH=%s", path);
 		kfree(path);
 
 		if (dev->bus)
-			add_hotplug_env_var(envp, num_envp, &i,
-					    buffer, buffer_size, &length,
-					    "PHYSDEVBUS=%s", dev->bus->name);
+			add_uevent_var(envp, num_envp, &i,
+				       buffer, buffer_size, &length,
+				       "PHYSDEVBUS=%s", dev->bus->name);
 
 		if (dev->driver)
-			add_hotplug_env_var(envp, num_envp, &i,
-					    buffer, buffer_size, &length,
-					    "PHYSDEVDRIVER=%s", dev->driver->name);
+			add_uevent_var(envp, num_envp, &i,
+				       buffer, buffer_size, &length,
+				       "PHYSDEVDRIVER=%s", dev->driver->name);
 	}
 
 	if (MAJOR(class_dev->devt)) {
-		add_hotplug_env_var(envp, num_envp, &i,
-				    buffer, buffer_size, &length,
-				    "MAJOR=%u", MAJOR(class_dev->devt));
+		add_uevent_var(envp, num_envp, &i,
+			       buffer, buffer_size, &length,
+			       "MAJOR=%u", MAJOR(class_dev->devt));
 
-		add_hotplug_env_var(envp, num_envp, &i,
-				    buffer, buffer_size, &length,
-				    "MINOR=%u", MINOR(class_dev->devt));
+		add_uevent_var(envp, num_envp, &i,
+			       buffer, buffer_size, &length,
+			       "MINOR=%u", MINOR(class_dev->devt));
 	}
 
 	/* terminate, set to next free slot, shrink available space */
@@ -397,30 +397,30 @@ static int class_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 	buffer = &buffer[length];
 	buffer_size -= length;
 
-	if (class_dev->hotplug) {
+	if (class_dev->uevent) {
 		/* have the class device specific function add its stuff */
-		retval = class_dev->hotplug(class_dev, envp, num_envp,
+		retval = class_dev->uevent(class_dev, envp, num_envp,
 					    buffer, buffer_size);
 		if (retval)
-			pr_debug("class_dev->hotplug() returned %d\n", retval);
-	} else if (class_dev->class->hotplug) {
+			pr_debug("class_dev->uevent() returned %d\n", retval);
+	} else if (class_dev->class->uevent) {
 		/* have the class specific function add its stuff */
-		retval = class_dev->class->hotplug(class_dev, envp, num_envp,
+		retval = class_dev->class->uevent(class_dev, envp, num_envp,
 						   buffer, buffer_size);
 		if (retval)
-			pr_debug("class->hotplug() returned %d\n", retval);
+			pr_debug("class->uevent() returned %d\n", retval);
 	}
 
 	return retval;
 }
 
-static struct kset_hotplug_ops class_hotplug_ops = {
-	.filter =	class_hotplug_filter,
-	.name =		class_hotplug_name,
-	.hotplug =	class_hotplug,
+static struct kset_uevent_ops class_uevent_ops = {
+	.filter =	class_uevent_filter,
+	.name =		class_uevent_name,
+	.uevent =	class_uevent,
 };
 
-static decl_subsys(class_obj, &ktype_class_device, &class_hotplug_ops);
+static decl_subsys(class_obj, &ktype_class_device, &class_uevent_ops);
 
 
 static int class_device_add_attrs(struct class_device * cd)
@@ -464,7 +464,7 @@ static ssize_t show_dev(struct class_device *class_dev, char *buf)
 static ssize_t store_uevent(struct class_device *class_dev,
 			    const char *buf, size_t count)
 {
-	kobject_hotplug(&class_dev->kobj, KOBJ_ADD);
+	kobject_uevent(&class_dev->kobj, KOBJ_ADD);
 	return count;
 }
 
@@ -559,7 +559,7 @@ int class_device_add(struct class_device *class_dev)
 				  class_name);
 	}
 
-	kobject_hotplug(&class_dev->kobj, KOBJ_ADD);
+	kobject_uevent(&class_dev->kobj, KOBJ_ADD);
 
 	/* notify any interfaces this device is now here */
 	if (parent_class) {
@@ -632,7 +632,7 @@ struct class_device *class_device_create(struct class *cls,
 	class_dev->class = cls;
 	class_dev->parent = parent;
 	class_dev->release = class_device_create_release;
-	class_dev->hotplug = class_device_create_hotplug;
+	class_dev->uevent = class_device_create_uevent;
 
 	va_start(args, fmt);
 	vsnprintf(class_dev->class_id, BUS_ID_SIZE, fmt, args);
@@ -674,7 +674,7 @@ void class_device_del(struct class_device *class_dev)
 		class_device_remove_file(class_dev, class_dev->devt_attr);
 	class_device_remove_attrs(class_dev);
 
-	kobject_hotplug(&class_dev->kobj, KOBJ_REMOVE);
+	kobject_uevent(&class_dev->kobj, KOBJ_REMOVE);
 	kobject_del(&class_dev->kobj);
 
 	class_device_put(parent_device);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8615b42b517a..fd8059920dbf 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -90,7 +90,7 @@ static struct kobj_type ktype_device = {
 };
 
 
-static int dev_hotplug_filter(struct kset *kset, struct kobject *kobj)
+static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
 {
 	struct kobj_type *ktype = get_ktype(kobj);
 
@@ -102,14 +102,14 @@ static int dev_hotplug_filter(struct kset *kset, struct kobject *kobj)
 	return 0;
 }
 
-static const char *dev_hotplug_name(struct kset *kset, struct kobject *kobj)
+static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
 {
 	struct device *dev = to_dev(kobj);
 
 	return dev->bus->name;
 }
 
-static int dev_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
+static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
 			int num_envp, char *buffer, int buffer_size)
 {
 	struct device *dev = to_dev(kobj);
@@ -119,15 +119,15 @@ static int dev_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 
 	/* add bus name of physical device */
 	if (dev->bus)
-		add_hotplug_env_var(envp, num_envp, &i,
-				    buffer, buffer_size, &length,
-				    "PHYSDEVBUS=%s", dev->bus->name);
+		add_uevent_var(envp, num_envp, &i,
+			       buffer, buffer_size, &length,
+			       "PHYSDEVBUS=%s", dev->bus->name);
 
 	/* add driver name of physical device */
 	if (dev->driver)
-		add_hotplug_env_var(envp, num_envp, &i,
-				    buffer, buffer_size, &length,
-				    "PHYSDEVDRIVER=%s", dev->driver->name);
+		add_uevent_var(envp, num_envp, &i,
+			       buffer, buffer_size, &length,
+			       "PHYSDEVDRIVER=%s", dev->driver->name);
 
 	/* terminate, set to next free slot, shrink available space */
 	envp[i] = NULL;
@@ -136,11 +136,11 @@ static int dev_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 	buffer = &buffer[length];
 	buffer_size -= length;
 
-	if (dev->bus && dev->bus->hotplug) {
+	if (dev->bus && dev->bus->uevent) {
 		/* have the bus specific function add its stuff */
-		retval = dev->bus->hotplug (dev, envp, num_envp, buffer, buffer_size);
+		retval = dev->bus->uevent(dev, envp, num_envp, buffer, buffer_size);
 			if (retval) {
-			pr_debug ("%s - hotplug() returned %d\n",
+			pr_debug ("%s - uevent() returned %d\n",
 				  __FUNCTION__, retval);
 		}
 	}
@@ -148,16 +148,16 @@ static int dev_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 	return retval;
 }
 
-static struct kset_hotplug_ops device_hotplug_ops = {
-	.filter =	dev_hotplug_filter,
-	.name =		dev_hotplug_name,
-	.hotplug =	dev_hotplug,
+static struct kset_uevent_ops device_uevent_ops = {
+	.filter =	dev_uevent_filter,
+	.name =		dev_uevent_name,
+	.uevent =	dev_uevent,
 };
 
 static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	kobject_hotplug(&dev->kobj, KOBJ_ADD);
+	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	return count;
 }
 
@@ -165,7 +165,7 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
  *	device_subsys - structure to be registered with kobject core.
  */
 
-decl_subsys(devices, &ktype_device, &device_hotplug_ops);
+decl_subsys(devices, &ktype_device, &device_uevent_ops);
 
 
 /**
@@ -274,7 +274,7 @@ int device_add(struct device *dev)
 	dev->uevent_attr.store = store_uevent;
 	device_create_file(dev, &dev->uevent_attr);
 
-	kobject_hotplug(&dev->kobj, KOBJ_ADD);
+	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	if ((error = device_pm_add(dev)))
 		goto PMError;
 	if ((error = bus_add_device(dev)))
@@ -291,7 +291,7 @@ int device_add(struct device *dev)
  BusError:
 	device_pm_remove(dev);
  PMError:
-	kobject_hotplug(&dev->kobj, KOBJ_REMOVE);
+	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
 	kobject_del(&dev->kobj);
  Error:
 	if (parent)
@@ -374,7 +374,7 @@ void device_del(struct device * dev)
 		platform_notify_remove(dev);
 	bus_remove_device(dev);
 	device_pm_remove(dev);
-	kobject_hotplug(&dev->kobj, KOBJ_REMOVE);
+	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
 	kobject_del(&dev->kobj);
 	if (parent)
 		put_device(parent);
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index a95844790f7b..281d26784d25 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -41,14 +41,14 @@ static ssize_t store_online(struct sys_device *dev, const char *buf,
 	case '0':
 		ret = cpu_down(cpu->sysdev.id);
 		if (!ret)
-			kobject_hotplug(&dev->kobj, KOBJ_OFFLINE);
+			kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
 		break;
 	case '1':
 		ret = smp_prepare_cpu(cpu->sysdev.id);
 		if (!ret)
 			ret = cpu_up(cpu->sysdev.id);
 		if (!ret)
-			kobject_hotplug(&dev->kobj, KOBJ_ONLINE);
+			kobject_uevent(&dev->kobj, KOBJ_ONLINE);
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 3b419c9a1e7e..2b905016664d 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -65,7 +65,8 @@ void device_bind_driver(struct device * dev)
  *	This function returns 1 if a match is found, an error if one
  *	occurs (that is not -ENODEV or -ENXIO), and 0 otherwise.
  *
- *	This function must be called with @dev->sem held.
+ *	This function must be called with @dev->sem held.  When called
+ *	for a USB interface, @dev->parent->sem must be held as well.
  */
 int driver_probe_device(struct device_driver * drv, struct device * dev)
 {
@@ -123,6 +124,8 @@ static int __device_attach(struct device_driver * drv, void * data)
  *
  *	Returns 1 if the device was bound to a driver;
  *	0 if no matching device was found; error code otherwise.
+ *
+ *	When called for a USB interface, @dev->parent->sem must be held.
  */
 int device_attach(struct device * dev)
 {
@@ -152,10 +155,14 @@ static int __driver_attach(struct device * dev, void * data)
 	 * is an error.
 	 */
 
+	if (dev->parent)	/* Needed for USB */
+		down(&dev->parent->sem);
 	down(&dev->sem);
 	if (!dev->driver)
 		driver_probe_device(drv, dev);
 	up(&dev->sem);
+	if (dev->parent)
+		up(&dev->parent->sem);
 
 	return 0;
 }
@@ -181,6 +188,8 @@ void driver_attach(struct device_driver * drv)
  *	Manually detach device from driver.
  *
  *	__device_release_driver() must be called with @dev->sem held.
+ *	When called for a USB interface, @dev->parent->sem must be held
+ *	as well.
  */
 
 static void __device_release_driver(struct device * dev)
@@ -233,10 +242,14 @@ void driver_detach(struct device_driver * drv)
 		get_device(dev);
 		spin_unlock(&drv->klist_devices.k_lock);
 
+		if (dev->parent)	/* Needed for USB */
+			down(&dev->parent->sem);
 		down(&dev->sem);
 		if (dev->driver == drv)
 			__device_release_driver(dev);
 		up(&dev->sem);
+		if (dev->parent)
+			up(&dev->parent->sem);
 		put_device(dev);
 	}
 }
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 59dacb6552c0..5b3d5e9ddcb6 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -85,17 +85,17 @@ firmware_timeout_store(struct class *class, const char *buf, size_t count)
 static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store);
 
 static void  fw_class_dev_release(struct class_device *class_dev);
-int firmware_class_hotplug(struct class_device *dev, char **envp,
+int firmware_class_uevent(struct class_device *dev, char **envp,
 			   int num_envp, char *buffer, int buffer_size);
 
 static struct class firmware_class = {
 	.name		= "firmware",
-	.hotplug	= firmware_class_hotplug,
+	.uevent	= firmware_class_uevent,
 	.release	= fw_class_dev_release,
 };
 
 int
-firmware_class_hotplug(struct class_device *class_dev, char **envp,
+firmware_class_uevent(struct class_device *class_dev, char **envp,
 		       int num_envp, char *buffer, int buffer_size)
 {
 	struct firmware_priv *fw_priv = class_get_devdata(class_dev);
@@ -104,13 +104,12 @@ firmware_class_hotplug(struct class_device *class_dev, char **envp,
 	if (!test_bit(FW_STATUS_READY, &fw_priv->status))
 		return -ENODEV;
 
-	if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size, &len,
-			"FIRMWARE=%s", fw_priv->fw_id))
+	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+			   "FIRMWARE=%s", fw_priv->fw_id))
 		return -ENOMEM;
-	if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size, &len,
-			"TIMEOUT=%i", loading_timeout))
+	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+			   "TIMEOUT=%i", loading_timeout))
 		return -ENOMEM;
-
 	envp[i] = NULL;
 
 	return 0;
@@ -352,7 +351,7 @@ error_kfree:
 
 static int
 fw_setup_class_device(struct firmware *fw, struct class_device **class_dev_p,
-		      const char *fw_name, struct device *device, int hotplug)
+		      const char *fw_name, struct device *device, int uevent)
 {
 	struct class_device *class_dev;
 	struct firmware_priv *fw_priv;
@@ -384,7 +383,7 @@ fw_setup_class_device(struct firmware *fw, struct class_device **class_dev_p,
 		goto error_unreg;
 	}
 
-	if (hotplug)
+	if (uevent)
                 set_bit(FW_STATUS_READY, &fw_priv->status);
         else
                 set_bit(FW_STATUS_READY_NOHOTPLUG, &fw_priv->status);
@@ -399,7 +398,7 @@ out:
 
 static int
 _request_firmware(const struct firmware **firmware_p, const char *name,
-		 struct device *device, int hotplug)
+		 struct device *device, int uevent)
 {
 	struct class_device *class_dev;
 	struct firmware_priv *fw_priv;
@@ -418,19 +417,19 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 	}
 
 	retval = fw_setup_class_device(firmware, &class_dev, name, device,
-		hotplug);
+				       uevent);
 	if (retval)
 		goto error_kfree_fw;
 
 	fw_priv = class_get_devdata(class_dev);
 
-	if (hotplug) {
+	if (uevent) {
 		if (loading_timeout > 0) {
 			fw_priv->timeout.expires = jiffies + loading_timeout * HZ;
 			add_timer(&fw_priv->timeout);
 		}
 
-		kobject_hotplug(&class_dev->kobj, KOBJ_ADD);
+		kobject_uevent(&class_dev->kobj, KOBJ_ADD);
 		wait_for_completion(&fw_priv->completion);
 		set_bit(FW_STATUS_DONE, &fw_priv->status);
 		del_timer_sync(&fw_priv->timeout);
@@ -456,7 +455,7 @@ out:
 }
 
 /**
- * request_firmware: - request firmware to hotplug and wait for it
+ * request_firmware: - send firmware request and wait for it
  * @firmware_p: pointer to firmware image
  * @name: name of firmware file
  * @device: device for which firmware is being loaded
@@ -466,7 +465,7 @@ out:
  *
  *      Should be called from user context where sleeping is allowed.
  *
- *      @name will be used as $FIRMWARE in the hotplug environment and
+ *      @name will be used as $FIRMWARE in the uevent environment and
  *      should be distinctive enough not to be confused with any other
  *      firmware image for this or any other device.
  **/
@@ -474,8 +473,8 @@ int
 request_firmware(const struct firmware **firmware_p, const char *name,
                  struct device *device)
 {
-        int hotplug = 1;
-        return _request_firmware(firmware_p, name, device, hotplug);
+        int uevent = 1;
+        return _request_firmware(firmware_p, name, device, uevent);
 }
 
 /**
@@ -518,7 +517,7 @@ struct firmware_work {
 	struct device *device;
 	void *context;
 	void (*cont)(const struct firmware *fw, void *context);
-	int hotplug;
+	int uevent;
 };
 
 static int
@@ -533,7 +532,7 @@ request_firmware_work_func(void *arg)
 	}
 	daemonize("%s/%s", "firmware", fw_work->name);
 	ret = _request_firmware(&fw, fw_work->name, fw_work->device,
-		fw_work->hotplug);
+		fw_work->uevent);
 	if (ret < 0)
 		fw_work->cont(NULL, fw_work->context);
 	else {
@@ -548,7 +547,7 @@ request_firmware_work_func(void *arg)
 /**
  * request_firmware_nowait: asynchronous version of request_firmware
  * @module: module requesting the firmware
- * @hotplug: invokes hotplug event to copy the firmware image if this flag
+ * @uevent: sends uevent to copy the firmware image if this flag
  *	is non-zero else the firmware copy must be done manually.
  * @name: name of firmware file
  * @device: device for which firmware is being loaded
@@ -562,7 +561,7 @@ request_firmware_work_func(void *arg)
  **/
 int
 request_firmware_nowait(
-	struct module *module, int hotplug,
+	struct module *module, int uevent,
 	const char *name, struct device *device, void *context,
 	void (*cont)(const struct firmware *fw, void *context))
 {
@@ -583,7 +582,7 @@ request_firmware_nowait(
 		.device = device,
 		.context = context,
 		.cont = cont,
-		.hotplug = hotplug,
+		.uevent = uevent,
 	};
 
 	ret = kernel_thread(request_firmware_work_func, fw_work,
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index bc3ca6a656b2..7e1d077874df 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -29,12 +29,12 @@ static struct sysdev_class memory_sysdev_class = {
 	set_kset_name(MEMORY_CLASS_NAME),
 };
 
-static char *memory_hotplug_name(struct kset *kset, struct kobject *kobj)
+static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj)
 {
 	return MEMORY_CLASS_NAME;
 }
 
-static int memory_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
+static int memory_uevent(struct kset *kset, struct kobject *kobj, char **envp,
 			int num_envp, char *buffer, int buffer_size)
 {
 	int retval = 0;
@@ -42,9 +42,9 @@ static int memory_hotplug(struct kset *kset, struct kobject *kobj, char **envp,
 	return retval;
 }
 
-static struct kset_hotplug_ops memory_hotplug_ops = {
-	.name		= memory_hotplug_name,
-	.hotplug	= memory_hotplug,
+static struct kset_uevent_ops memory_uevent_ops = {
+	.name		= memory_uevent_name,
+	.uevent		= memory_uevent,
 };
 
 static struct notifier_block *memory_chain;
@@ -431,7 +431,7 @@ int __init memory_dev_init(void)
 	unsigned int i;
 	int ret;
 
-	memory_sysdev_class.kset.hotplug_ops = &memory_hotplug_ops;
+	memory_sysdev_class.kset.uevent_ops = &memory_uevent_ops;
 	ret = sysdev_class_register(&memory_sysdev_class);
 
 	/*
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 8827dafba945..0f81731bdfa8 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -25,6 +25,7 @@
 struct device platform_bus = {
 	.bus_id		= "platform",
 };
+EXPORT_SYMBOL_GPL(platform_bus);
 
 /**
  *	platform_get_resource - get a resource for a device
@@ -49,6 +50,7 @@ platform_get_resource(struct platform_device *dev, unsigned int type,
 	}
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(platform_get_resource);
 
 /**
  *	platform_get_irq - get an IRQ for a device
@@ -61,6 +63,7 @@ int platform_get_irq(struct platform_device *dev, unsigned int num)
 
 	return r ? r->start : 0;
 }
+EXPORT_SYMBOL_GPL(platform_get_irq);
 
 /**
  *	platform_get_resource_byname - get a resource for a device by name
@@ -84,6 +87,7 @@ platform_get_resource_byname(struct platform_device *dev, unsigned int type,
 	}
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(platform_get_resource_byname);
 
 /**
  *	platform_get_irq - get an IRQ for a device
@@ -96,6 +100,7 @@ int platform_get_irq_byname(struct platform_device *dev, char *name)
 
 	return r ? r->start : 0;
 }
+EXPORT_SYMBOL_GPL(platform_get_irq_byname);
 
 /**
  *	platform_add_devices - add a numbers of platform devices
@@ -117,6 +122,7 @@ int platform_add_devices(struct platform_device **devs, int num)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(platform_add_devices);
 
 struct platform_object {
 	struct platform_device pdev;
@@ -168,7 +174,7 @@ struct platform_device *platform_device_alloc(const char *name, unsigned int id)
 		pa->pdev.dev.release = platform_device_release;
 	}
 
-	return pa ? &pa->pdev : NULL;	
+	return pa ? &pa->pdev : NULL;
 }
 EXPORT_SYMBOL_GPL(platform_device_alloc);
 
@@ -257,7 +263,7 @@ int platform_device_add(struct platform_device *pdev)
 				p = &ioport_resource;
 		}
 
-		if (p && request_resource(p, r)) {
+		if (p && insert_resource(p, r)) {
 			printk(KERN_ERR
 			       "%s: failed to claim resource %d\n",
 			       pdev->dev.bus_id, i);
@@ -282,24 +288,13 @@ int platform_device_add(struct platform_device *pdev)
 EXPORT_SYMBOL_GPL(platform_device_add);
 
 /**
- *	platform_device_register - add a platform-level device
- *	@pdev:	platform device we're adding
- *
- */
-int platform_device_register(struct platform_device * pdev)
-{
-	device_initialize(&pdev->dev);
-	return platform_device_add(pdev);
-}
-
-/**
- *	platform_device_unregister - remove a platform-level device
+ *	platform_device_del - remove a platform-level device
  *	@pdev:	platform device we're removing
  *
  *	Note that this function will also release all memory- and port-based
  *	resources owned by the device (@dev->resource).
  */
-void platform_device_unregister(struct platform_device * pdev)
+void platform_device_del(struct platform_device *pdev)
 {
 	int i;
 
@@ -310,9 +305,37 @@ void platform_device_unregister(struct platform_device * pdev)
 				release_resource(r);
 		}
 
-		device_unregister(&pdev->dev);
+		device_del(&pdev->dev);
 	}
 }
+EXPORT_SYMBOL_GPL(platform_device_del);
+
+/**
+ *	platform_device_register - add a platform-level device
+ *	@pdev:	platform device we're adding
+ *
+ */
+int platform_device_register(struct platform_device * pdev)
+{
+	device_initialize(&pdev->dev);
+	return platform_device_add(pdev);
+}
+EXPORT_SYMBOL_GPL(platform_device_register);
+
+/**
+ *	platform_device_unregister - unregister a platform-level device
+ *	@pdev:	platform device we're unregistering
+ *
+ *	Unregistration is done in 2 steps. Fisrt we release all resources
+ *	and remove it from the sybsystem, then we drop reference count by
+ *	calling platform_device_put().
+ */
+void platform_device_unregister(struct platform_device * pdev)
+{
+	platform_device_del(pdev);
+	platform_device_put(pdev);
+}
+EXPORT_SYMBOL_GPL(platform_device_unregister);
 
 /**
  *	platform_device_register_simple
@@ -355,6 +378,7 @@ error:
 	platform_device_put(pdev);
 	return ERR_PTR(retval);
 }
+EXPORT_SYMBOL_GPL(platform_device_register_simple);
 
 static int platform_drv_probe(struct device *_dev)
 {
@@ -476,6 +500,7 @@ struct bus_type platform_bus_type = {
 	.suspend	= platform_suspend,
 	.resume		= platform_resume,
 };
+EXPORT_SYMBOL_GPL(platform_bus_type);
 
 int __init platform_bus_init(void)
 {
@@ -504,14 +529,3 @@ u64 dma_get_required_mask(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(dma_get_required_mask);
 #endif
-
-EXPORT_SYMBOL_GPL(platform_bus);
-EXPORT_SYMBOL_GPL(platform_bus_type);
-EXPORT_SYMBOL_GPL(platform_add_devices);
-EXPORT_SYMBOL_GPL(platform_device_register);
-EXPORT_SYMBOL_GPL(platform_device_register_simple);
-EXPORT_SYMBOL_GPL(platform_device_unregister);
-EXPORT_SYMBOL_GPL(platform_get_irq);
-EXPORT_SYMBOL_GPL(platform_get_resource);
-EXPORT_SYMBOL_GPL(platform_get_irq_byname);
-EXPORT_SYMBOL_GPL(platform_get_resource_byname);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index adbc3148c039..4bafef83e79f 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -64,6 +64,7 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state)
 }
 
 
+#if 0
 /**
  *	dpm_set_power_state - Update power_state field.
  *	@dev:	Device.
@@ -80,3 +81,4 @@ void dpm_set_power_state(struct device * dev, pm_message_t state)
 	dev->power.power_state = state;
 	up(&dpm_sem);
 }
+#endif  /*  0  */
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index b4d7a3efb90f..70aeb3a60120 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -3509,6 +3509,7 @@ static int __init ide_cdrom_init(void)
 	return driver_register(&ide_cdrom_driver.gen_driver);
 }
 
+MODULE_ALIAS("ide:*m-cdrom*");
 module_init(ide_cdrom_init);
 module_exit(ide_cdrom_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 449522f0540c..4e5767968d7f 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1271,6 +1271,7 @@ static int __init idedisk_init(void)
 	return driver_register(&idedisk_driver.gen_driver);
 }
 
+MODULE_ALIAS("ide:*m-disk*");
 module_init(idedisk_init);
 module_exit(idedisk_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 9e293c8063dc..fba3fffc2d66 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -2197,6 +2197,7 @@ static int __init idefloppy_init(void)
 	return driver_register(&idefloppy_driver.gen_driver);
 }
 
+MODULE_ALIAS("ide:*m-floppy*");
 module_init(idefloppy_init);
 module_exit(idefloppy_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 7d7944ed4158..fab9b2b02504 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -4947,6 +4947,7 @@ out:
 	return error;
 }
 
+MODULE_ALIAS("ide:*m-tape*");
 module_init(idetape_init);
 module_exit(idetape_exit);
 MODULE_ALIAS_CHARDEV_MAJOR(IDETAPE_MAJOR);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 8af179b531c3..4b524f6b3ecd 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -1904,9 +1904,69 @@ static int ide_bus_match(struct device *dev, struct device_driver *drv)
 	return 1;
 }
 
+static char *media_string(ide_drive_t *drive)
+{
+	switch (drive->media) {
+	case ide_disk:
+		return "disk";
+	case ide_cdrom:
+		return "cdrom";
+	case ide_tape:
+		return "tape";
+	case ide_floppy:
+		return "floppy";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	ide_drive_t *drive = to_ide_device(dev);
+	return sprintf(buf, "%s\n", media_string(drive));
+}
+
+static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	ide_drive_t *drive = to_ide_device(dev);
+	return sprintf(buf, "%s\n", drive->name);
+}
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	ide_drive_t *drive = to_ide_device(dev);
+	return sprintf(buf, "ide:m-%s\n", media_string(drive));
+}
+
+static struct device_attribute ide_dev_attrs[] = {
+	__ATTR_RO(media),
+	__ATTR_RO(drivename),
+	__ATTR_RO(modalias),
+	__ATTR_NULL
+};
+
+static int ide_uevent(struct device *dev, char **envp, int num_envp,
+		      char *buffer, int buffer_size)
+{
+	ide_drive_t *drive = to_ide_device(dev);
+	int i = 0;
+	int length = 0;
+
+	add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+		       "MEDIA=%s", media_string(drive));
+	add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+		       "DRIVENAME=%s", drive->name);
+	add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+		       "MODALIAS=ide:m-%s", media_string(drive));
+	envp[i] = NULL;
+	return 0;
+}
+
 struct bus_type ide_bus_type = {
 	.name		= "ide",
 	.match		= ide_bus_match,
+	.uevent		= ide_uevent,
+	.dev_attrs	= ide_dev_attrs,
 	.suspend	= generic_ide_suspend,
 	.resume		= generic_ide_resume,
 };
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 0ea37b1bccb2..f2453668acf5 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -121,8 +121,8 @@ struct host_info {
 };
 
 static int nodemgr_bus_match(struct device * dev, struct device_driver * drv);
-static int nodemgr_hotplug(struct class_device *cdev, char **envp, int num_envp,
-			   char *buffer, int buffer_size);
+static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+			  char *buffer, int buffer_size);
 static void nodemgr_resume_ne(struct node_entry *ne);
 static void nodemgr_remove_ne(struct node_entry *ne);
 static struct node_entry *find_entry_by_guid(u64 guid);
@@ -162,7 +162,7 @@ static void ud_cls_release(struct class_device *class_dev)
 static struct class nodemgr_ud_class = {
 	.name		= "ieee1394",
 	.release	= ud_cls_release,
-	.hotplug	= nodemgr_hotplug,
+	.uevent		= nodemgr_uevent,
 };
 
 static struct hpsb_highlevel nodemgr_highlevel;
@@ -966,7 +966,7 @@ static struct unit_directory *nodemgr_process_unit_directory
 				if (ud_child == NULL)
 					break;
 				
-				/* inherit unspecified values so hotplug picks it up */
+				/* inherit unspecified values, the driver core picks it up */
 				if ((ud->flags & UNIT_DIRECTORY_MODEL_ID) &&
 				    !(ud_child->flags & UNIT_DIRECTORY_MODEL_ID))
 				{
@@ -1062,8 +1062,8 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
 
 #ifdef CONFIG_HOTPLUG
 
-static int nodemgr_hotplug(struct class_device *cdev, char **envp, int num_envp,
-			   char *buffer, int buffer_size)
+static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+			  char *buffer, int buffer_size)
 {
 	struct unit_directory *ud;
 	int i = 0;
@@ -1112,8 +1112,8 @@ do {								\
 
 #else
 
-static int nodemgr_hotplug(struct class_device *cdev, char **envp, int num_envp,
-			   char *buffer, int buffer_size)
+static int nodemgr_uevent(struct class_device *cdev, char **envp, int num_envp,
+			  char *buffer, int buffer_size)
 {
 	return -ENODEV;
 }
@@ -1618,8 +1618,8 @@ static int nodemgr_host_thread(void *__hi)
 
 		/* Scan our nodes to get the bus options and create node
 		 * entries. This does not do the sysfs stuff, since that
-		 * would trigger hotplug callbacks and such, which is a
-		 * bad idea at this point. */
+		 * would trigger uevents and such, which is a bad idea at
+		 * this point. */
 		nodemgr_node_scan(hi, generation);
 
 		/* This actually does the full probe, with sysfs
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 08648b1a387e..1f1743c5c9a3 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -434,24 +434,24 @@ static void ib_device_release(struct class_device *cdev)
 	kfree(dev);
 }
 
-static int ib_device_hotplug(struct class_device *cdev, char **envp,
-			     int num_envp, char *buf, int size)
+static int ib_device_uevent(struct class_device *cdev, char **envp,
+			    int num_envp, char *buf, int size)
 {
 	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
 	int i = 0, len = 0;
 
-	if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len,
-				"NAME=%s", dev->name))
+	if (add_uevent_var(envp, num_envp, &i, buf, size, &len,
+			   "NAME=%s", dev->name))
 		return -ENOMEM;
 
 	/*
-	 * It might be nice to pass the node GUID to hotplug, but
+	 * It might be nice to pass the node GUID with the event, but
 	 * right now the only way to get it is to query the device
 	 * provider, and this can crash during device removal because
 	 * we are will be running after driver removal has started.
 	 * We could add a node_guid field to struct ib_device, or we
-	 * could just let the hotplug script read the node GUID from
-	 * sysfs when devices are added.
+	 * could just let userspace read the node GUID from sysfs when
+	 * devices are added.
 	 */
 
 	envp[i] = NULL;
@@ -653,7 +653,7 @@ static struct class_device_attribute *ib_class_attributes[] = {
 static struct class ib_class = {
 	.name    = "infiniband",
 	.release = ib_device_release,
-	.hotplug = ib_device_hotplug,
+	.uevent = ib_device_uevent,
 };
 
 int ib_device_register_sysfs(struct ib_device *device)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index bdd2a7fc268d..ef5824c8846b 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -18,7 +18,6 @@
 #include <linux/random.h>
 #include <linux/major.h>
 #include <linux/proc_fs.h>
-#include <linux/kobject_uevent.h>
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/device.h>
@@ -529,10 +528,49 @@ INPUT_DEV_STRING_ATTR_SHOW(name);
 INPUT_DEV_STRING_ATTR_SHOW(phys);
 INPUT_DEV_STRING_ATTR_SHOW(uniq);
 
+static int print_modalias_bits(char *buf, char prefix, unsigned long *arr,
+			       unsigned int min, unsigned int max)
+{
+	int len, i;
+
+	len = sprintf(buf, "%c", prefix);
+	for (i = min; i < max; i++)
+		if (arr[LONG(i)] & BIT(i))
+			len += sprintf(buf+len, "%X,", i);
+	return len;
+}
+
+static ssize_t input_dev_show_modalias(struct class_device *dev, char *buf)
+{
+	struct input_dev *id = to_input_dev(dev);
+	ssize_t len = 0;
+
+	len += sprintf(buf+len, "input:b%04Xv%04Xp%04Xe%04X-",
+		       id->id.bustype,
+		       id->id.vendor,
+		       id->id.product,
+		       id->id.version);
+
+	len += print_modalias_bits(buf+len, 'e', id->evbit, 0, EV_MAX);
+	len += print_modalias_bits(buf+len, 'k', id->keybit,
+				   KEY_MIN_INTERESTING, KEY_MAX);
+	len += print_modalias_bits(buf+len, 'r', id->relbit, 0, REL_MAX);
+	len += print_modalias_bits(buf+len, 'a', id->absbit, 0, ABS_MAX);
+	len += print_modalias_bits(buf+len, 'm', id->mscbit, 0, MSC_MAX);
+	len += print_modalias_bits(buf+len, 'l', id->ledbit, 0, LED_MAX);
+	len += print_modalias_bits(buf+len, 's', id->sndbit, 0, SND_MAX);
+	len += print_modalias_bits(buf+len, 'f', id->ffbit, 0, FF_MAX);
+	len += print_modalias_bits(buf+len, 'w', id->swbit, 0, SW_MAX);
+	len += sprintf(buf+len, "\n");
+	return len;
+}
+static CLASS_DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);
+
 static struct attribute *input_dev_attrs[] = {
 	&class_device_attr_name.attr,
 	&class_device_attr_phys.attr,
 	&class_device_attr_uniq.attr,
+	&class_device_attr_modalias.attr,
 	NULL
 };
 
@@ -611,10 +649,10 @@ static void input_dev_release(struct class_device *class_dev)
 }
 
 /*
- * Input hotplugging interface - loading event handlers based on
+ * Input uevent interface - loading event handlers based on
  * device bitfields.
  */
-static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
+static int input_add_uevent_bm_var(char **envp, int num_envp, int *cur_index,
 				    char *buffer, int buffer_size, int *cur_len,
 				    const char *name, unsigned long *bitmap, int max)
 {
@@ -639,7 +677,7 @@ static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
 
 #define INPUT_ADD_HOTPLUG_VAR(fmt, val...)				\
 	do {								\
-		int err = add_hotplug_env_var(envp, num_envp, &i,	\
+		int err = add_uevent_var(envp, num_envp, &i,	\
 					buffer, buffer_size, &len,	\
 					fmt, val);			\
 		if (err)						\
@@ -648,15 +686,15 @@ static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
 
 #define INPUT_ADD_HOTPLUG_BM_VAR(name, bm, max)				\
 	do {								\
-		int err = input_add_hotplug_bm_var(envp, num_envp, &i,	\
+		int err = input_add_uevent_bm_var(envp, num_envp, &i,	\
 					buffer, buffer_size, &len,	\
 					name, bm, max);			\
 		if (err)						\
 			return err;					\
 	} while (0)
 
-static int input_dev_hotplug(struct class_device *cdev, char **envp,
-			     int num_envp, char *buffer, int buffer_size)
+static int input_dev_uevent(struct class_device *cdev, char **envp,
+			    int num_envp, char *buffer, int buffer_size)
 {
 	struct input_dev *dev = to_input_dev(cdev);
 	int i = 0;
@@ -698,7 +736,7 @@ static int input_dev_hotplug(struct class_device *cdev, char **envp,
 struct class input_class = {
 	.name			= "input",
 	.release		= input_dev_release,
-	.hotplug		= input_dev_hotplug,
+	.uevent			= input_dev_uevent,
 };
 
 struct input_dev *input_allocate_device(void)
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index fbb69ef6a77b..8e530cc970e1 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -800,16 +800,16 @@ static int serio_bus_match(struct device *dev, struct device_driver *drv)
 
 #ifdef CONFIG_HOTPLUG
 
-#define SERIO_ADD_HOTPLUG_VAR(fmt, val...)				\
+#define SERIO_ADD_UEVENT_VAR(fmt, val...)				\
 	do {								\
-		int err = add_hotplug_env_var(envp, num_envp, &i,	\
+		int err = add_uevent_var(envp, num_envp, &i,	\
 					buffer, buffer_size, &len,	\
 					fmt, val);			\
 		if (err)						\
 			return err;					\
 	} while (0)
 
-static int serio_hotplug(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
+static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
 {
 	struct serio *serio;
 	int i = 0;
@@ -820,21 +820,21 @@ static int serio_hotplug(struct device *dev, char **envp, int num_envp, char *bu
 
 	serio = to_serio_port(dev);
 
-	SERIO_ADD_HOTPLUG_VAR("SERIO_TYPE=%02x", serio->id.type);
-	SERIO_ADD_HOTPLUG_VAR("SERIO_PROTO=%02x", serio->id.proto);
-	SERIO_ADD_HOTPLUG_VAR("SERIO_ID=%02x", serio->id.id);
-	SERIO_ADD_HOTPLUG_VAR("SERIO_EXTRA=%02x", serio->id.extra);
-	SERIO_ADD_HOTPLUG_VAR("MODALIAS=serio:ty%02Xpr%02Xid%02Xex%02X",
+	SERIO_ADD_UEVENT_VAR("SERIO_TYPE=%02x", serio->id.type);
+	SERIO_ADD_UEVENT_VAR("SERIO_PROTO=%02x", serio->id.proto);
+	SERIO_ADD_UEVENT_VAR("SERIO_ID=%02x", serio->id.id);
+	SERIO_ADD_UEVENT_VAR("SERIO_EXTRA=%02x", serio->id.extra);
+	SERIO_ADD_UEVENT_VAR("MODALIAS=serio:ty%02Xpr%02Xid%02Xex%02X",
 				serio->id.type, serio->id.proto, serio->id.id, serio->id.extra);
 	envp[i] = NULL;
 
 	return 0;
 }
-#undef SERIO_ADD_HOTPLUG_VAR
+#undef SERIO_ADD_UEVENT_VAR
 
 #else
 
-static int serio_hotplug(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
+static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
 {
 	return -ENODEV;
 }
@@ -908,7 +908,7 @@ static int __init serio_init(void)
 	serio_bus.dev_attrs = serio_device_attrs;
 	serio_bus.drv_attrs = serio_driver_attrs;
 	serio_bus.match = serio_bus_match;
-	serio_bus.hotplug = serio_hotplug;
+	serio_bus.uevent = serio_uevent;
 	serio_bus.resume = serio_resume;
 	bus_register(&serio_bus);
 
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index c34c96d18907..228e1852a836 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -128,7 +128,7 @@ static int macio_device_resume(struct device * dev)
 	return 0;
 }
 
-static int macio_hotplug (struct device *dev, char **envp, int num_envp,
+static int macio_uevent(struct device *dev, char **envp, int num_envp,
                           char *buffer, int buffer_size)
 {
 	struct macio_dev * macio_dev;
@@ -203,7 +203,7 @@ extern struct device_attribute macio_dev_attrs[];
 struct bus_type macio_bus_type = {
        .name	= "macio",
        .match	= macio_bus_match,
-       .hotplug = macio_hotplug,
+       .uevent = macio_uevent,
        .suspend	= macio_device_suspend,
        .resume	= macio_device_resume,
        .dev_attrs = macio_dev_attrs,
diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c
index 3f4a66ca9555..ec701667abfc 100644
--- a/drivers/mmc/mmc_sysfs.c
+++ b/drivers/mmc/mmc_sysfs.c
@@ -80,7 +80,7 @@ static int mmc_bus_match(struct device *dev, struct device_driver *drv)
 }
 
 static int
-mmc_bus_hotplug(struct device *dev, char **envp, int num_envp, char *buf,
+mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf,
 		int buf_size)
 {
 	struct mmc_card *card = dev_to_mmc_card(dev);
@@ -140,7 +140,7 @@ static struct bus_type mmc_bus_type = {
 	.name		= "mmc",
 	.dev_attrs	= mmc_dev_attrs,
 	.match		= mmc_bus_match,
-	.hotplug	= mmc_bus_hotplug,
+	.uevent		= mmc_bus_uevent,
 	.suspend	= mmc_bus_suspend,
 	.resume		= mmc_bus_resume,
 };
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
index e1743be31909..1c97e7dd130b 100644
--- a/drivers/pci/hotplug.c
+++ b/drivers/pci/hotplug.c
@@ -3,8 +3,8 @@
 #include <linux/module.h>
 #include "pci.h"
 
-int pci_hotplug (struct device *dev, char **envp, int num_envp,
-		 char *buffer, int buffer_size)
+int pci_uevent(struct device *dev, char **envp, int num_envp,
+	       char *buffer, int buffer_size)
 {
 	struct pci_dev *pdev;
 	int i = 0;
@@ -17,34 +17,34 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
 	if (!pdev)
 		return -ENODEV;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"PCI_CLASS=%04X", pdev->class))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_CLASS=%04X", pdev->class))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
-				pdev->subsystem_device))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+			   pdev->subsystem_device))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"PCI_SLOT_NAME=%s", pci_name(pdev)))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_SLOT_NAME=%s", pci_name(pdev)))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
-				pdev->vendor, pdev->device,
-				pdev->subsystem_vendor, pdev->subsystem_device,
-				(u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
-				(u8)(pdev->class)))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
+			   pdev->vendor, pdev->device,
+			   pdev->subsystem_vendor, pdev->subsystem_device,
+			   (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
+			   (u8)(pdev->class)))
 		return -ENOMEM;
 
 	envp[i] = NULL;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index a9046d4b8af3..7146b69b812c 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -502,8 +502,8 @@ void pci_dev_put(struct pci_dev *dev)
 }
 
 #ifndef CONFIG_HOTPLUG
-int pci_hotplug (struct device *dev, char **envp, int num_envp,
-		 char *buffer, int buffer_size)
+int pci_uevent(struct device *dev, char **envp, int num_envp,
+	       char *buffer, int buffer_size)
 {
 	return -ENODEV;
 }
@@ -512,7 +512,7 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
 struct bus_type pci_bus_type = {
 	.name		= "pci",
 	.match		= pci_bus_match,
-	.hotplug	= pci_hotplug,
+	.uevent		= pci_uevent,
 	.suspend	= pci_device_suspend,
 	.resume		= pci_device_resume,
 	.dev_attrs	= pci_dev_attrs,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 6527b36c9a61..294849d24590 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -1,7 +1,7 @@
 /* Functions internal to the PCI core code */
 
-extern int pci_hotplug (struct device *dev, char **envp, int num_envp,
-			 char *buffer, int buffer_size);
+extern int pci_uevent(struct device *dev, char **envp, int num_envp,
+		      char *buffer, int buffer_size);
 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
 extern void pci_cleanup_rom(struct pci_dev *dev);
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index a30aa74304a2..7cf09084ef61 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -901,14 +901,14 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
 EXPORT_SYMBOL(pcmcia_insert_card);
 
 
-static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
-				int num_envp, char *buffer, int buffer_size)
+static int pcmcia_socket_uevent(struct class_device *dev, char **envp,
+			        int num_envp, char *buffer, int buffer_size)
 {
 	struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
 	int i = 0, length = 0;
 
-	if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
-				&length, "SOCKET_NO=%u", s->sock))
+	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
+			   &length, "SOCKET_NO=%u", s->sock))
 		return -ENOMEM;
 
 	envp[i] = NULL;
@@ -927,7 +927,7 @@ static void pcmcia_release_socket_class(struct class *data)
 
 struct class pcmcia_socket_class = {
 	.name = "pcmcia_socket",
-        .hotplug = pcmcia_socket_hotplug,
+	.uevent = pcmcia_socket_uevent,
 	.release = pcmcia_release_socket,
 	.class_release = pcmcia_release_socket_class,
 };
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 7f8219f3fd9e..6fb76399547e 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -779,8 +779,8 @@ static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
 
 #ifdef CONFIG_HOTPLUG
 
-static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
-			      char *buffer, int buffer_size)
+static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
+			     char *buffer, int buffer_size)
 {
 	struct pcmcia_device *p_dev;
 	int i, length = 0;
@@ -800,31 +800,31 @@ static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
 
 	i = 0;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"SOCKET_NO=%u",
-				p_dev->socket->sock))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "SOCKET_NO=%u",
+			   p_dev->socket->sock))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"DEVICE_NO=%02X",
-				p_dev->device_no))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "DEVICE_NO=%02X",
+			   p_dev->device_no))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
-				"pa%08Xpb%08Xpc%08Xpd%08X",
-				p_dev->has_manf_id ? p_dev->manf_id : 0,
-				p_dev->has_card_id ? p_dev->card_id : 0,
-				p_dev->has_func_id ? p_dev->func_id : 0,
-				p_dev->func,
-				p_dev->device_no,
-				hash[0],
-				hash[1],
-				hash[2],
-				hash[3]))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
+			   "pa%08Xpb%08Xpc%08Xpd%08X",
+			   p_dev->has_manf_id ? p_dev->manf_id : 0,
+			   p_dev->has_card_id ? p_dev->card_id : 0,
+			   p_dev->has_func_id ? p_dev->func_id : 0,
+			   p_dev->func,
+			   p_dev->device_no,
+			   hash[0],
+			   hash[1],
+			   hash[2],
+			   hash[3]))
 		return -ENOMEM;
 
 	envp[i] = NULL;
@@ -834,7 +834,7 @@ static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
 
 #else
 
-static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
+static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
 			      char *buffer, int buffer_size)
 {
 	return -ENODEV;
@@ -1223,7 +1223,7 @@ static struct class_interface pcmcia_bus_interface = {
 
 struct bus_type pcmcia_bus_type = {
 	.name = "pcmcia",
-	.hotplug = pcmcia_bus_hotplug,
+	.uevent = pcmcia_bus_uevent,
 	.match = pcmcia_bus_match,
 	.dev_attrs = pcmcia_dev_attrs,
 };
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index f49674f07949..b154b3f52cbe 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -56,7 +56,6 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/slab.h>
-#include <linux/kobject_uevent.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
 #include <linux/dmi.h>
@@ -106,8 +105,6 @@ static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
 	char *argv [3], **envp, *buf, *scratch;
 	int i = 0, value;
 
-	if (!hotplug_path [0])
-		return -ENOENT;
 	if (!current->fs->root) {
 		return -EAGAIN;
 	}
@@ -119,8 +116,9 @@ static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
 		return -ENOMEM;
 	}
 
-	/* only one standardized param to hotplug command: type */
-	argv [0] = hotplug_path;
+	/* FIXME: if there are actual users of this, it should be integrated into
+	 * the driver core and use the usual infrastructure like sysfs and uevents */
+	argv [0] = "/sbin/pnpbios";
 	argv [1] = "dock";
 	argv [2] = NULL;
 
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index e7bd7f37f080..be9d2d65c22f 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -45,7 +45,7 @@ ccwgroup_bus_match (struct device * dev, struct device_driver * drv)
 	return 0;
 }
 static int
-ccwgroup_hotplug (struct device *dev, char **envp, int num_envp, char *buffer,
+ccwgroup_uevent (struct device *dev, char **envp, int num_envp, char *buffer,
 		  int buffer_size)
 {
 	/* TODO */
@@ -55,7 +55,7 @@ ccwgroup_hotplug (struct device *dev, char **envp, int num_envp, char *buffer,
 static struct bus_type ccwgroup_bus_type = {
 	.name    = "ccwgroup",
 	.match   = ccwgroup_bus_match,
-	.hotplug = ccwgroup_hotplug,
+	.uevent = ccwgroup_uevent,
 };
 
 static inline void
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 811c9d150637..85908cacc3b8 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -59,7 +59,7 @@ ccw_bus_match (struct device * dev, struct device_driver * drv)
  * Heavily modeled on pci and usb hotplug.
  */
 static int
-ccw_hotplug (struct device *dev, char **envp, int num_envp,
+ccw_uevent (struct device *dev, char **envp, int num_envp,
 	     char *buffer, int buffer_size)
 {
 	struct ccw_device *cdev = to_ccwdev(dev);
@@ -110,7 +110,7 @@ ccw_hotplug (struct device *dev, char **envp, int num_envp,
 struct bus_type ccw_bus_type = {
 	.name  = "ccw",
 	.match = &ccw_bus_match,
-	.hotplug = &ccw_hotplug,
+	.uevent = &ccw_uevent,
 };
 
 static int io_subchannel_probe (struct device *);
diff --git a/drivers/s390/crypto/z90main.c b/drivers/s390/crypto/z90main.c
index 4010f2bb85af..790fcbb74b43 100644
--- a/drivers/s390/crypto/z90main.c
+++ b/drivers/s390/crypto/z90main.c
@@ -34,7 +34,6 @@
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/kobject_uevent.h>
 #include <linux/proc_fs.h>
 #include <linux/syscalls.h>
 #include "z90crypt.h"
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index b6714da4d6e2..27acf78cf8d8 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2132,7 +2132,7 @@ restart:
 	}
 
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-	kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE, NULL);
+	kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE);
 	LEAVE;
 }
 
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 56a3520863a9..13d1d367f7f1 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -192,6 +192,7 @@ void usb_driver_release_interface(struct usb_driver *driver,
 	iface->condition = USB_INTERFACE_UNBOUND;
 	mark_quiesced(iface);
 }
+
 struct find_interface_arg {
 	int minor;
 	struct usb_interface *interface;
@@ -236,10 +237,7 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor)
 #ifdef	CONFIG_HOTPLUG
 
 /*
- * USB hotplugging invokes what /proc/sys/kernel/hotplug says
- * (normally /sbin/hotplug) when USB devices get added or removed.
- *
- * This invokes a user mode policy agent, typically helping to load driver
+ * This sends an uevent to userspace, typically helping to load driver
  * or other modules, configure the device, and more.  Drivers can provide
  * a MODULE_DEVICE_TABLE to help with module loading subtasks.
  *
@@ -248,8 +246,8 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor)
  * delays in event delivery.  Use sysfs (and DEVPATH) to make sure the
  * device (and this configuration!) are still present.
  */
-static int usb_hotplug (struct device *dev, char **envp, int num_envp,
-			char *buffer, int buffer_size)
+static int usb_uevent(struct device *dev, char **envp, int num_envp,
+		      char *buffer, int buffer_size)
 {
 	struct usb_interface *intf;
 	struct usb_device *usb_dev;
@@ -261,7 +259,7 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp,
 		return -ENODEV;
 
 	/* driver is often null here; dev_dbg() would oops */
-	pr_debug ("usb %s: hotplug\n", dev->bus_id);
+	pr_debug ("usb %s: uevent\n", dev->bus_id);
 
 	/* Must check driver_data here, as on remove driver is always NULL */
 	if ((dev->driver == &usb_generic_driver) || 
@@ -288,51 +286,51 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp,
 	 *
 	 * FIXME reduce hardwired intelligence here
 	 */
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"DEVICE=/proc/bus/usb/%03d/%03d",
-				usb_dev->bus->busnum, usb_dev->devnum))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "DEVICE=/proc/bus/usb/%03d/%03d",
+			   usb_dev->bus->busnum, usb_dev->devnum))
 		return -ENOMEM;
 #endif
 
 	/* per-device configurations are common */
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"PRODUCT=%x/%x/%x",
-				le16_to_cpu(usb_dev->descriptor.idVendor),
-				le16_to_cpu(usb_dev->descriptor.idProduct),
-				le16_to_cpu(usb_dev->descriptor.bcdDevice)))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PRODUCT=%x/%x/%x",
+			   le16_to_cpu(usb_dev->descriptor.idVendor),
+			   le16_to_cpu(usb_dev->descriptor.idProduct),
+			   le16_to_cpu(usb_dev->descriptor.bcdDevice)))
 		return -ENOMEM;
 
 	/* class-based driver binding models */
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"TYPE=%d/%d/%d",
-				usb_dev->descriptor.bDeviceClass,
-				usb_dev->descriptor.bDeviceSubClass,
-				usb_dev->descriptor.bDeviceProtocol))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "TYPE=%d/%d/%d",
+			   usb_dev->descriptor.bDeviceClass,
+			   usb_dev->descriptor.bDeviceSubClass,
+			   usb_dev->descriptor.bDeviceProtocol))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"INTERFACE=%d/%d/%d",
-				alt->desc.bInterfaceClass,
-				alt->desc.bInterfaceSubClass,
-				alt->desc.bInterfaceProtocol))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "INTERFACE=%d/%d/%d",
+			   alt->desc.bInterfaceClass,
+			   alt->desc.bInterfaceSubClass,
+			   alt->desc.bInterfaceProtocol))
 		return -ENOMEM;
 
-	if (add_hotplug_env_var(envp, num_envp, &i,
-				buffer, buffer_size, &length,
-				"MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X",
-				le16_to_cpu(usb_dev->descriptor.idVendor),
-				le16_to_cpu(usb_dev->descriptor.idProduct),
-				le16_to_cpu(usb_dev->descriptor.bcdDevice),
-				usb_dev->descriptor.bDeviceClass,
-				usb_dev->descriptor.bDeviceSubClass,
-				usb_dev->descriptor.bDeviceProtocol,
-				alt->desc.bInterfaceClass,
-				alt->desc.bInterfaceSubClass,
-				alt->desc.bInterfaceProtocol))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X",
+			   le16_to_cpu(usb_dev->descriptor.idVendor),
+			   le16_to_cpu(usb_dev->descriptor.idProduct),
+			   le16_to_cpu(usb_dev->descriptor.bcdDevice),
+			   usb_dev->descriptor.bDeviceClass,
+			   usb_dev->descriptor.bDeviceSubClass,
+			   usb_dev->descriptor.bDeviceProtocol,
+			   alt->desc.bInterfaceClass,
+			   alt->desc.bInterfaceSubClass,
+			   alt->desc.bInterfaceProtocol))
 		return -ENOMEM;
 
 	envp[i] = NULL;
@@ -342,7 +340,7 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp,
 
 #else
 
-static int usb_hotplug (struct device *dev, char **envp,
+static int usb_uevent(struct device *dev, char **envp,
 			int num_envp, char *buffer, int buffer_size)
 {
 	return -ENODEV;
@@ -1093,7 +1091,7 @@ static int usb_generic_resume(struct device *dev)
 struct bus_type usb_bus_type = {
 	.name =		"usb",
 	.match =	usb_device_match,
-	.hotplug =	usb_hotplug,
+	.uevent =	usb_uevent,
 	.suspend =	usb_generic_suspend,
 	.resume =	usb_generic_resume,
 };
diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c
index 0eaabeb37ac3..641268d7e6f3 100644
--- a/drivers/usb/host/hc_crisv10.c
+++ b/drivers/usb/host/hc_crisv10.c
@@ -4397,7 +4397,7 @@ static int __init etrax_usb_hc_init(void)
         device_initialize(&fake_device);
         kobject_set_name(&fake_device.kobj, "etrax_usb");
         kobject_add(&fake_device.kobj);
-        kobject_hotplug(&fake_device.kobj, KOBJ_ADD);
+	kobject_uevent(&fake_device.kobj, KOBJ_ADD);
         hc->bus->controller = &fake_device;
 	usb_register_bus(hc->bus);
 
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 14016b1cd948..024206c4a0e4 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -142,12 +142,12 @@ static struct bin_attribute w1_slave_attr_bin_id = {
 /* Default family */
 static struct w1_family w1_default_family;
 
-static int w1_hotplug(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size);
+static int w1_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size);
 
 static struct bus_type w1_bus_type = {
 	.name = "w1",
 	.match = w1_master_match,
-	.hotplug = w1_hotplug,
+	.uevent = w1_uevent,
 };
 
 struct device_driver w1_master_driver = {
@@ -361,7 +361,7 @@ void w1_destroy_master_attributes(struct w1_master *master)
 }
 
 #ifdef CONFIG_HOTPLUG
-static int w1_hotplug(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
+static int w1_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
 {
 	struct w1_master *md = NULL;
 	struct w1_slave *sl = NULL;
@@ -377,7 +377,7 @@ static int w1_hotplug(struct device *dev, char **envp, int num_envp, char *buffe
 		event_owner = "slave";
 		name = sl->name;
 	} else {
-		dev_dbg(dev, "Unknown hotplug event.\n");
+		dev_dbg(dev, "Unknown event.\n");
 		return -EINVAL;
 	}
 
@@ -386,18 +386,18 @@ static int w1_hotplug(struct device *dev, char **envp, int num_envp, char *buffe
 	if (dev->driver != &w1_slave_driver || !sl)
 		return 0;
 
-	err = add_hotplug_env_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_FID=%02X", sl->reg_num.family);
+	err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_FID=%02X", sl->reg_num.family);
 	if (err)
 		return err;
 
-	err = add_hotplug_env_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_SLAVE_ID=%024LX", (u64)sl->reg_num.id);
+	err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size, &cur_len, "W1_SLAVE_ID=%024LX", (u64)sl->reg_num.id);
 	if (err)
 		return err;
 
 	return 0;
 };
 #else
-static int w1_hotplug(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
+static int w1_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size)
 {
 	return 0;
 }