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

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (75 commits)
  PM: merge device power-management source files
  sysfs: add copyrights
  kobject: update the copyrights
  kset: add some kerneldoc to help describe what these strange things are
  Driver core: rename ktype_edd and ktype_efivar
  Driver core: rename ktype_driver
  Driver core: rename ktype_device
  Driver core: rename ktype_class
  driver core: remove subsystem_init()
  sysfs: move sysfs file poll implementation to sysfs_open_dirent
  sysfs: implement sysfs_open_dirent
  sysfs: move sysfs_dirent->s_children into sysfs_dirent->s_dir
  sysfs: make sysfs_root a regular directory dirent
  sysfs: open code sysfs_attach_dentry()
  sysfs: make s_elem an anonymous union
  sysfs: make bin attr open get active reference of parent too
  sysfs: kill unnecessary NULL pointer check in sysfs_release()
  sysfs: kill unnecessary sysfs_get() in open paths
  sysfs: reposition sysfs_dirent->s_mode.
  sysfs: kill sysfs_update_file()
  ...

Documentation/kernel-parameters.txt

@@ -1437,6 +1437,10 @@ and is between 256 and 4096 characters. It is defined in the file
 	pt.		[PARIDE]
 			See Documentation/paride.txt.
 
+	pty.legacy_count=
+			[KNL] Number of legacy pty's. Overwrites compiled-in
+			default number.
+
 	quiet		[KNL] Disable most log messages
 
 	r128=		[HW,DRM]

Documentation/kobject.txt

@@ -54,7 +54,6 @@ embedded in larger data structures and replace fields they duplicate.
 
 struct kobject {
 	const char		* k_name;
-	char			name[KOBJ_NAME_LEN];
 	struct kref		kref;
 	struct list_head	entry;
 	struct kobject		* parent;
@@ -223,41 +222,24 @@ decl_subsys(devices, &ktype_device, &device_uevent_ops);
 is equivalent to doing:
 
 struct kset devices_subsys = {
-     .kobj = {
-	   .name = "devices",
-     },
      .ktype = &ktype_devices,
      .uevent_ops = &device_uevent_ops,
 };
-
+kobject_set_name(&devices_subsys, name);
 
 The objects that are registered with a subsystem that use the
 subsystem's default list must have their kset ptr set properly. These
 objects may have embedded kobjects or ksets. The
-following helpers make setting the kset easier:
+following helper makes setting the kset easier:
 
 
 kobj_set_kset_s(obj,subsys)
 
 - Assumes that obj->kobj exists, and is a struct kobject.
 - Sets the kset of that kobject to the kset <subsys>.
 
-
-kset_set_kset_s(obj,subsys)
-
-- Assumes that obj->kset exists, and is a struct kset.
-- Sets the kset of the embedded kobject to the kset <subsys>.
-
-subsys_set_kset(obj,subsys)
-
-- Assumes obj->subsys exists, and is a struct subsystem.
-- Sets obj->subsys.kset.kobj.kset to the subsystem's embedded kset.
-
-void subsystem_init(struct kset *s);
 int subsystem_register(struct kset *s);
 void subsystem_unregister(struct kset *s);
-struct kset *subsys_get(struct kset *s);
-void kset_put(struct kset *s);
 
 These are just wrappers around the respective kset_* functions.
 

arch/ia64/sn/kernel/tiocx.c

@@ -66,8 +66,7 @@ static int tiocx_match(struct device *dev, struct device_driver *drv)
 
 }
 
-static int tiocx_uevent(struct device *dev, char **envp, int num_envp,
-			 char *buffer, int buffer_size)
+static int tiocx_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	return -ENODEV;
 }

arch/powerpc/kernel/of_device.c

@@ -57,26 +57,21 @@ ssize_t of_device_get_modalias(struct of_device *ofdev,
 	return tsize;
 }
 
-int of_device_uevent(struct device *dev,
-		char **envp, int num_envp, char *buffer, int buffer_size)
+int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct of_device *ofdev;
 	const char *compat;
-	int i = 0, length = 0, seen = 0, cplen, sl;
+	int seen = 0, cplen, sl;
 
 	if (!dev)
 		return -ENODEV;
 
 	ofdev = to_of_device(dev);
 
-	if (add_uevent_var(envp, num_envp, &i,
-			   buffer, buffer_size, &length,
-			   "OF_NAME=%s", ofdev->node->name))
+	if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
 		return -ENOMEM;
 
-	if (add_uevent_var(envp, num_envp, &i,
-			   buffer, buffer_size, &length,
-			   "OF_TYPE=%s", ofdev->node->type))
+	if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
 		return -ENOMEM;
 
         /* Since the compatible field can contain pretty much anything
@@ -85,9 +80,7 @@ int of_device_uevent(struct device *dev,
 
 	compat = of_get_property(ofdev->node, "compatible", &cplen);
 	while (compat && *compat && cplen > 0) {
-		if (add_uevent_var(envp, num_envp, &i,
-				   buffer, buffer_size, &length,
-				   "OF_COMPATIBLE_%d=%s", seen, compat))
+		if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
 			return -ENOMEM;
 
 		sl = strlen (compat) + 1;
@@ -96,25 +89,17 @@ int of_device_uevent(struct device *dev,
 		seen++;
 	}
 
-	if (add_uevent_var(envp, num_envp, &i,
-			   buffer, buffer_size, &length,
-			   "OF_COMPATIBLE_N=%d", seen))
+	if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen))
 		return -ENOMEM;
 
 	/* modalias is trickier, we add it in 2 steps */
-	if (add_uevent_var(envp, num_envp, &i,
-			   buffer, buffer_size, &length,
-			   "MODALIAS="))
+	if (add_uevent_var(env, "MODALIAS="))
 		return -ENOMEM;
-
-	sl = of_device_get_modalias(ofdev, &buffer[length-1],
-					buffer_size-length);
-	if (sl >= (buffer_size-length))
+	sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1],
+				    sizeof(env->buf) - env->buflen);
+	if (sl >= (sizeof(env->buf) - env->buflen))
 		return -ENOMEM;
-
-	length += sl;
-
-	envp[i] = NULL;
+	env->buflen += sl;
 
 	return 0;
 }

arch/powerpc/kernel/vio.c

@@ -317,30 +317,20 @@ static int vio_bus_match(struct device *dev, struct device_driver *drv)
 	return (ids != NULL) && (vio_match_device(ids, vio_dev) != NULL);
 }
 
-static int vio_hotplug(struct device *dev, char **envp, int num_envp,
-			char *buffer, int buffer_size)
+static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
 {
 	const struct vio_dev *vio_dev = to_vio_dev(dev);
 	struct device_node *dn;
 	const char *cp;
-	int length;
-
-	if (!num_envp)
-		return -ENOMEM;
 
 	dn = dev->archdata.of_node;
 	if (!dn)
 		return -ENODEV;
-	cp = of_get_property(dn, "compatible", &length);
+	cp = of_get_property(dn, "compatible", NULL);
 	if (!cp)
 		return -ENODEV;
 
-	envp[0] = buffer;
-	length = scnprintf(buffer, buffer_size, "MODALIAS=vio:T%sS%s",
-				vio_dev->type, cp);
-	if ((buffer_size - length) <= 0)
-		return -ENOMEM;
-	envp[1] = NULL;
+	add_uevent_var(env, "MODALIAS=vio:T%sS%s", vio_dev->type, cp);
 	return 0;
 }
 

arch/powerpc/platforms/ps3/system-bus.c

@@ -437,18 +437,13 @@ static void ps3_system_bus_shutdown(struct device *_dev)
 	dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
 }
 
-static int ps3_system_bus_uevent(struct device *_dev, char **envp,
-				 int num_envp, char *buffer, int buffer_size)
+static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *env)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 	int i = 0, length = 0;
 
-	if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
-			   &length, "MODALIAS=ps3:%d",
-			   dev->match_id))
+	if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id))
 		return -ENOMEM;
-
-	envp[i] = NULL;
 	return 0;
 }
 

block/bsg.c

@@ -1010,10 +1010,7 @@ int bsg_register_queue(struct request_queue *q, struct device *gdev,
 }
 EXPORT_SYMBOL_GPL(bsg_register_queue);
 
-static struct cdev bsg_cdev = {
-	.kobj   = {.name = "bsg", },
-	.owner  = THIS_MODULE,
-};
+static struct cdev bsg_cdev;
 
 static int __init bsg_init(void)
 {

block/elevator.c

@@ -186,7 +186,7 @@ static elevator_t *elevator_alloc(struct request_queue *q,
 	eq->ops = &e->ops;
 	eq->elevator_type = e;
 	kobject_init(&eq->kobj);
-	snprintf(eq->kobj.name, KOBJ_NAME_LEN, "%s", "iosched");
+	kobject_set_name(&eq->kobj, "%s", "iosched");
 	eq->kobj.ktype = &elv_ktype;
 	mutex_init(&eq->sysfs_lock);
 

block/genhd.c

@@ -540,61 +540,42 @@ static int block_uevent_filter(struct kset *kset, struct kobject *kobj)
 	return ((ktype == &ktype_block) || (ktype == &ktype_part));
 }
 
-static int block_uevent(struct kset *kset, struct kobject *kobj, char **envp,
-			 int num_envp, char *buffer, int buffer_size)
+static int block_uevent(struct kset *kset, struct kobject *kobj,
+			struct kobj_uevent_env *env)
 {
 	struct kobj_type *ktype = get_ktype(kobj);
 	struct device *physdev;
 	struct gendisk *disk;
 	struct hd_struct *part;
-	int length = 0;
-	int i = 0;
 
 	if (ktype == &ktype_block) {
 		disk = container_of(kobj, struct gendisk, kobj);
-		add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
-			       &length, "MINOR=%u", disk->first_minor);
+		add_uevent_var(env, "MINOR=%u", disk->first_minor);
 	} else if (ktype == &ktype_part) {
 		disk = container_of(kobj->parent, struct gendisk, kobj);
 		part = container_of(kobj, struct hd_struct, kobj);
-		add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
-			       &length, "MINOR=%u",
+		add_uevent_var(env, "MINOR=%u",
 			       disk->first_minor + part->partno);
 	} else
 		return 0;
 
-	add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-		       "MAJOR=%u", disk->major);
+	add_uevent_var(env, "MAJOR=%u", disk->major);
 
 	/* add physical device, backing this device  */
 	physdev = disk->driverfs_dev;
 	if (physdev) {
 		char *path = kobject_get_path(&physdev->kobj, GFP_KERNEL);
 
-		add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
-			       &length, "PHYSDEVPATH=%s", path);
+		add_uevent_var(env, "PHYSDEVPATH=%s", path);
 		kfree(path);
 
 		if (physdev->bus)
-			add_uevent_var(envp, num_envp, &i,
-				       buffer, buffer_size, &length,
-				       "PHYSDEVBUS=%s",
-				       physdev->bus->name);
+			add_uevent_var(env, "PHYSDEVBUS=%s", physdev->bus->name);
 
 		if (physdev->driver)
-			add_uevent_var(envp, num_envp, &i,
-				       buffer, buffer_size, &length,
-				       "PHYSDEVDRIVER=%s",
-				       physdev->driver->name);
+			add_uevent_var(env, physdev->driver->name);
 	}
 
-	/* terminate, set to next free slot, shrink available space */
-	envp[i] = NULL;
-	envp = &envp[i];
-	num_envp -= i;
-	buffer = &buffer[length];
-	buffer_size -= length;
-
 	return 0;
 }
 

block/ll_rw_blk.c

@@ -1854,7 +1854,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 
 	init_timer(&q->unplug_timer);
 
-	snprintf(q->kobj.name, KOBJ_NAME_LEN, "%s", "queue");
+	kobject_set_name(&q->kobj, "%s", "queue");
 	q->kobj.ktype = &queue_ktype;
 	kobject_init(&q->kobj);
 

drivers/acpi/bus.c

@@ -194,7 +194,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 
 	if (!device->flags.power_manageable) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
-				device->dev.kobj.name));
+				kobject_name(&device->dev.kobj)));
 		return -ENODEV;
 	}
 	/*

drivers/acpi/scan.c

@@ -319,16 +319,18 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
 	return !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
 }
 
-static int acpi_device_uevent(struct device *dev, char **envp, int num_envp,
-			      char *buffer, int buffer_size)
+static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
+	int len;
 
-	strcpy(buffer, "MODALIAS=");
-	if (create_modalias(acpi_dev, buffer + 9, buffer_size - 9) > 0) {
-		envp[0] = buffer;
-		envp[1] = NULL;
-	}
+	if (add_uevent_var(env, "MODALIAS="))
+		return -ENOMEM;
+	len = create_modalias(acpi_dev, &env->buf[env->buflen - 1],
+			      sizeof(env->buf) - env->buflen);
+	if (len >= (sizeof(env->buf) - env->buflen))
+		return -ENOMEM;
+	env->buflen += len;
 	return 0;
 }
 

drivers/acpi/video.c

@@ -316,7 +316,7 @@ static int acpi_video_output_get(struct output_device *od)
 {
 	unsigned long state;
 	struct acpi_video_device *vd =
-		(struct acpi_video_device *)class_get_devdata(&od->class_dev);
+		(struct acpi_video_device *)dev_get_drvdata(&od->dev);
 	acpi_video_device_get_state(vd, &state);
 	return (int)state;
 }
@@ -325,7 +325,7 @@ static int acpi_video_output_set(struct output_device *od)
 {
 	unsigned long state = od->request_state;
 	struct acpi_video_device *vd=
-		(struct acpi_video_device *)class_get_devdata(&od->class_dev);
+		(struct acpi_video_device *)dev_get_drvdata(&od->dev);
 	return acpi_video_device_set_state(vd, state);
 }
 

drivers/amba/bus.c

@@ -44,15 +44,12 @@ static int amba_match(struct device *dev, struct device_driver *drv)
 }
 
 #ifdef CONFIG_HOTPLUG
-static int amba_uevent(struct device *dev, char **envp, int nr_env, char *buf, int bufsz)
+static int amba_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct amba_device *pcdev = to_amba_device(dev);
-	int retval = 0, i = 0, len = 0;
+	int retval = 0;
 
-	retval = add_uevent_var(envp, nr_env, &i,
-				buf, bufsz, &len,
-				"AMBA_ID=%08x", pcdev->periphid);
-	envp[i] = NULL;
+	retval = add_uevent_var(env, "AMBA_ID=%08x", pcdev->periphid);
 	return retval;
 }
 #else

drivers/base/Kconfig

@@ -1,5 +1,13 @@
 menu "Generic Driver Options"
 
+config UEVENT_HELPER_PATH
+	string "path to uevent helper"
+	depends on HOTPLUG
+	default "/sbin/hotplug"
+	help
+	  Path to uevent helper program forked by the kernel for
+	  every uevent.
+
 config STANDALONE
 	bool "Select only drivers that don't need compile-time external firmware" if EXPERIMENTAL
 	default y

drivers/base/base.h

@@ -18,8 +18,6 @@ extern int attribute_container_init(void);
 extern int bus_add_device(struct device * dev);
 extern void bus_attach_device(struct device * dev);
 extern void bus_remove_device(struct device * dev);
-extern struct bus_type *get_bus(struct bus_type * bus);
-extern void put_bus(struct bus_type * bus);
 
 extern int bus_add_driver(struct device_driver *);
 extern void bus_remove_driver(struct device_driver *);