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: (61 commits)
  sysfs: add parameter "struct bin_attribute *" in .read/.write methods for sysfs binary attributes
  sysfs: make directory dentries and inodes reclaimable
  sysfs: implement sysfs_get_dentry()
  sysfs: move sysfs_drop_dentry() to dir.c and make it static
  sysfs: restructure add/remove paths and fix inode update
  sysfs: use sysfs_mutex to protect the sysfs_dirent tree
  sysfs: consolidate sysfs spinlocks
  sysfs: make kobj point to sysfs_dirent instead of dentry
  sysfs: implement sysfs_find_dirent() and sysfs_get_dirent()
  sysfs: implement SYSFS_FLAG_REMOVED flag
  sysfs: rename sysfs_dirent->s_type to s_flags and make room for flags
  sysfs: make sysfs_drop_dentry() access inodes using ilookup()
  sysfs: Fix oops in sysfs_drop_dentry on x86_64
  sysfs: use singly-linked list for sysfs_dirent tree
  sysfs: slim down sysfs_dirent->s_active
  sysfs: move s_active functions to fs/sysfs/dir.c
  sysfs: fix root sysfs_dirent -> root dentry association
  sysfs: use iget_locked() instead of new_inode()
  sysfs: reorganize sysfs_new_indoe() and sysfs_create()
  sysfs: fix parent refcounting during rename and move
  ...

Documentation/firmware_class/firmware_sample_firmware_class.c

@@ -78,6 +78,7 @@ static CLASS_DEVICE_ATTR(loading, 0644,
 			 firmware_loading_show, firmware_loading_store);
 
 static ssize_t firmware_data_read(struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
 				  char *buffer, loff_t offset, size_t count)
 {
 	struct class_device *class_dev = to_class_dev(kobj);
@@ -88,6 +89,7 @@ static ssize_t firmware_data_read(struct kobject *kobj,
 	return count;
 }
 static ssize_t firmware_data_write(struct kobject *kobj,
+				   struct bin_attribute *bin_attr,
 				   char *buffer, loff_t offset, size_t count)
 {
 	struct class_device *class_dev = to_class_dev(kobj);

Documentation/sysfs-rules.txt

+Rules on how to access information in the Linux kernel sysfs
+
+The kernel exported sysfs exports internal kernel implementation-details
+and depends on internal kernel structures and layout. It is agreed upon
+by the kernel developers that the Linux kernel does not provide a stable
+internal API. As sysfs is a direct export of kernel internal
+structures, the sysfs interface can not provide a stable interface eighter,
+it may always change along with internal kernel changes.
+
+To minimize the risk of breaking users of sysfs, which are in most cases
+low-level userspace applications, with a new kernel release, the users
+of sysfs must follow some rules to use an as abstract-as-possible way to
+access this filesystem. The current udev and HAL programs already
+implement this and users are encouraged to plug, if possible, into the
+abstractions these programs provide instead of accessing sysfs
+directly.
+
+But if you really do want or need to access sysfs directly, please follow
+the following rules and then your programs should work with future
+versions of the sysfs interface.
+
+- Do not use libsysfs
+  It makes assumptions about sysfs which are not true. Its API does not
+  offer any abstraction, it exposes all the kernel driver-core
+  implementation details in its own API. Therefore it is not better than
+  reading directories and opening the files yourself.
+  Also, it is not actively maintained, in the sense of reflecting the
+  current kernel-development. The goal of providing a stable interface
+  to sysfs has failed, it causes more problems, than it solves. It
+  violates many of the rules in this document.
+
+- sysfs is always at /sys
+  Parsing /proc/mounts is a waste of time. Other mount points are a
+  system configuration bug you should not try to solve. For test cases,
+  possibly support a SYSFS_PATH environment variable to overwrite the
+  applications behavior, but never try to search for sysfs. Never try
+  to mount it, if you are not an early boot script.
+
+- devices are only "devices"
+  There is no such thing like class-, bus-, physical devices,
+  interfaces, and such that you can rely on in userspace. Everything is
+  just simply a "device". Class-, bus-, physical, ... types are just
+  kernel implementation details, which should not be expected by
+  applications that look for devices in sysfs.
+
+  The properties of a device are:
+    o devpath (/devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0)
+      - identical to the DEVPATH value in the event sent from the kernel
+        at device creation and removal
+      - the unique key to the device at that point in time
+      - the kernels path to the device-directory without the leading
+        /sys, and always starting with with a slash
+      - all elements of a devpath must be real directories. Symlinks
+        pointing to /sys/devices must always be resolved to their real
+        target, and the target path must be used to access the device.
+        That way the devpath to the device matches the devpath of the
+        kernel used at event time.
+      - using or exposing symlink values as elements in a devpath string
+        is a bug in the application
+
+    o kernel name (sda, tty, 0000:00:1f.2, ...)
+      - a directory name, identical to the last element of the devpath
+      - applications need to handle spaces and characters like '!' in
+        the name
+
+    o subsystem (block, tty, pci, ...)
+      - simple string, never a path or a link
+      - retrieved by reading the "subsystem"-link and using only the
+        last element of the target path
+
+    o driver (tg3, ata_piix, uhci_hcd)
+      - a simple string, which may contain spaces, never a path or a
+        link
+      - it is retrieved by reading the "driver"-link and using only the
+        last element of the target path
+      - devices which do not have "driver"-link, just do not have a
+        driver; copying the driver value in a child device context, is a
+        bug in the application
+
+    o attributes
+      - the files in the device directory or files below a subdirectories
+        of the same device directory
+      - accessing attributes reached by a symlink pointing to another device,
+        like the "device"-link, is a bug in the application
+
+  Everything else is just a kernel driver-core implementation detail,
+  that should not be assumed to be stable across kernel releases.
+
+- Properties of parent devices never belong into a child device.
+  Always look at the parent devices themselves for determining device
+  context properties. If the device 'eth0' or 'sda' does not have a
+  "driver"-link, then this device does not have a driver. Its value is empty.
+  Never copy any property of the parent-device into a child-device. Parent
+  device-properties may change dynamically without any notice to the
+  child device.
+
+- Hierarchy in a single device-tree
+  There is only one valid place in sysfs where hierarchy can be examined
+  and this is below: /sys/devices.
+  It is planned, that all device directories will end up in the tree
+  below this directory.
+
+- Classification by subsystem
+  There are currently three places for classification of devices:
+  /sys/block, /sys/class and /sys/bus. It is planned that these will
+  not contain any device-directories themselves, but only flat lists of
+  symlinks pointing to the unified /sys/devices tree.
+  All three places have completely different rules on how to access
+  device information. It is planned to merge all three
+  classification-directories into one place at /sys/subsystem,
+  following the layout of the bus-directories. All buses and
+  classes, including the converted block-subsystem, will show up
+  there.
+  The devices belonging to a subsystem will create a symlink in the
+  "devices" directory at /sys/subsystem/<name>/devices.
+
+  If /sys/subsystem exists, /sys/bus, /sys/class and /sys/block can be
+  ignored. If it does not exist, you have always to scan all three
+  places, as the kernel is free to move a subsystem from one place to
+  the other, as long as the devices are still reachable by the same
+  subsystem name.
+
+  Assuming /sys/class/<subsystem> and /sys/bus/<subsystem>, or
+  /sys/block and /sys/class/block are not interchangeable, is a bug in
+  the application.
+
+- Block
+  The converted block-subsystem at /sys/class/block, or
+  /sys/subsystem/block will contain the links for disks and partitions
+  at the same level, never in a hierarchy. Assuming the block-subsytem to
+  contain only disks and not partition-devices in the same flat list is
+  a bug in the application.
+
+- "device"-link and <subsystem>:<kernel name>-links
+  Never depend on the "device"-link. The "device"-link is a workaround
+  for the old layout, where class-devices are not created in
+  /sys/devices/ like the bus-devices. If the link-resolving of a
+  device-directory does not end in /sys/devices/, you can use the
+  "device"-link to find the parent devices in /sys/devices/. That is the
+  single valid use of the "device"-link, it must never appear in any
+  path as an element. Assuming the existence of the "device"-link for
+  a device in /sys/devices/ is a bug in the application.
+  Accessing /sys/class/net/eth0/device is a bug in the application.
+
+  Never depend on the class-specific links back to the /sys/class
+  directory.  These links are also a workaround for the design mistake
+  that class-devices are not created in /sys/devices. If a device
+  directory does not contain directories for child devices, these links
+  may be used to find the child devices in /sys/class. That is the single
+  valid use of these links, they must never appear in any path as an
+  element. Assuming the existence of these links for devices which are
+  real child device directories in the /sys/devices tree, is a bug in
+  the application.
+
+  It is planned to remove all these links when when all class-device
+  directories live in /sys/devices.
+
+- Position of devices along device chain can change.
+  Never depend on a specific parent device position in the devpath,
+  or the chain of parent devices. The kernel is free to insert devices into
+  the chain. You must always request the parent device you are looking for
+  by its subsystem value. You need to walk up the chain until you find
+  the device that matches the expected subsystem. Depending on a specific
+  position of a parent device, or exposing relative paths, using "../" to
+  access the chain of parents, is a bug in the application.
+

arch/arm/common/locomo.c

@@ -60,6 +60,9 @@ struct locomo {
 	unsigned int irq;
 	spinlock_t lock;
 	void __iomem *base;
+#ifdef CONFIG_PM
+	void *saved_state;
+#endif
 };
 
 struct locomo_dev_info {
@@ -565,7 +568,7 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
 	if (!save)
 		return -ENOMEM;
 
-	dev->dev.power.saved_state = (void *) save;
+	lchip->saved_state = save;
 
 	spin_lock_irqsave(&lchip->lock, flags);
 
@@ -605,8 +608,8 @@ static int locomo_resume(struct platform_device *dev)
 	struct locomo_save_data *save;
 	unsigned long r;
 	unsigned long flags;
-	
-	save = (struct locomo_save_data *) dev->dev.power.saved_state;
+
+	save = lchip->saved_state;
 	if (!save)
 		return 0;
 
@@ -628,6 +631,8 @@ static int locomo_resume(struct platform_device *dev)
 	locomo_writel(0x1, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KCMD);
 
 	spin_unlock_irqrestore(&lchip->lock, flags);
+
+	lchip->saved_state = NULL;
 	kfree(save);
 
 	return 0;

arch/arm/common/sa1111.c

@@ -51,6 +51,9 @@ struct sa1111 {
 	int		irq;
 	spinlock_t	lock;
 	void __iomem	*base;
+#ifdef CONFIG_PM
+	void		*saved_state;
+#endif
 };
 
 /*
@@ -822,7 +825,7 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
 	save = kmalloc(sizeof(struct sa1111_save_data), GFP_KERNEL);
 	if (!save)
 		return -ENOMEM;
-	dev->dev.power.saved_state = save;
+	sachip->saved_state = save;
 
 	spin_lock_irqsave(&sachip->lock, flags);
 
@@ -878,7 +881,7 @@ static int sa1111_resume(struct platform_device *dev)
 	unsigned long flags, id;
 	void __iomem *base;
 
-	save = (struct sa1111_save_data *)dev->dev.power.saved_state;
+	save = sachip->saved_state;
 	if (!save)
 		return 0;
 
@@ -923,7 +926,7 @@ static int sa1111_resume(struct platform_device *dev)
 
 	spin_unlock_irqrestore(&sachip->lock, flags);
 
-	dev->dev.power.saved_state = NULL;
+	sachip->saved_state = NULL;
 	kfree(save);
 
 	return 0;
@@ -958,8 +961,8 @@ static int sa1111_remove(struct platform_device *pdev)
 		platform_set_drvdata(pdev, NULL);
 
 #ifdef CONFIG_PM
-		kfree(pdev->dev.power.saved_state);
-		pdev->dev.power.saved_state = NULL;
+		kfree(sachip->saved_state);
+		sachip->saved_state = NULL;
 #endif
 	}
 

arch/arm/mach-sa1100/neponset.c

@@ -185,28 +185,21 @@ static int __devinit neponset_probe(struct platform_device *dev)
 /*
  * LDM power management.
  */
+static unsigned int neponset_saved_state;
+
 static int neponset_suspend(struct platform_device *dev, pm_message_t state)
 {
 	/*
 	 * Save state.
 	 */
-	if (!dev->dev.power.saved_state)
-		dev->dev.power.saved_state = kmalloc(sizeof(unsigned int), GFP_KERNEL);
-	if (!dev->dev.power.saved_state)
-		return -ENOMEM;
-
-	*(unsigned int *)dev->dev.power.saved_state = NCR_0;
+	neponset_saved_state = NCR_0;
 
 	return 0;
 }
 
 static int neponset_resume(struct platform_device *dev)
 {
-	if (dev->dev.power.saved_state) {
-		NCR_0 = *(unsigned int *)dev->dev.power.saved_state;
-		kfree(dev->dev.power.saved_state);
-		dev->dev.power.saved_state = NULL;
-	}
+	NCR_0 = neponset_saved_state;
 
 	return 0;
 }

arch/ppc/syslib/mv64x60.c

@@ -2415,7 +2415,6 @@ static struct bin_attribute mv64xxx_hs_reg_attr = { /* Hotswap register */
 	.attr = {
 		.name = "hs_reg",
 		.mode = S_IRUGO | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size  = VAL_LEN_MAX,
 	.read  = mv64xxx_hs_reg_read,

arch/s390/kernel/ipl.c

@@ -312,7 +312,6 @@ static struct bin_attribute ipl_parameter_attr = {
 	.attr = {
 		.name = "binary_parameter",
 		.mode = S_IRUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = PAGE_SIZE,
 	.read = &ipl_parameter_read,
@@ -336,7 +335,6 @@ static struct bin_attribute ipl_scp_data_attr = {
 	.attr = {
 		.name = "scp_data",
 		.mode = S_IRUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = PAGE_SIZE,
 	.read = &ipl_scp_data_read,

drivers/base/attribute_container.c

@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 
 #include "base.h"
 

drivers/base/base.h

@@ -44,6 +44,6 @@ struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
 
 extern char *make_class_name(const char *name, struct kobject *kobj);
 
-extern void devres_release_all(struct device *dev);
+extern int devres_release_all(struct device *dev);
 
 extern struct kset devices_subsys;

drivers/base/bus.c

@@ -138,12 +138,24 @@ void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
 	}
 }
 
-static struct kobj_type ktype_bus = {
+static struct kobj_type bus_ktype = {
 	.sysfs_ops	= &bus_sysfs_ops,
+};
+
+static int bus_uevent_filter(struct kset *kset, struct kobject *kobj)
+{
+	struct kobj_type *ktype = get_ktype(kobj);
 
+	if (ktype == &bus_ktype)
+		return 1;
+	return 0;
+}
+
+static struct kset_uevent_ops bus_uevent_ops = {
+	.filter = bus_uevent_filter,
 };
 
-static decl_subsys(bus, &ktype_bus, NULL);
+static decl_subsys(bus, &bus_ktype, &bus_uevent_ops);
 
 
 #ifdef CONFIG_HOTPLUG
@@ -562,7 +574,6 @@ static int add_probe_files(struct bus_type *bus)
 
 	bus->drivers_probe_attr.attr.name = "drivers_probe";
 	bus->drivers_probe_attr.attr.mode = S_IWUSR;
-	bus->drivers_probe_attr.attr.owner = bus->owner;
 	bus->drivers_probe_attr.store = store_drivers_probe;
 	retval = bus_create_file(bus, &bus->drivers_probe_attr);
 	if (retval)
@@ -570,7 +581,6 @@ static int add_probe_files(struct bus_type *bus)
 
 	bus->drivers_autoprobe_attr.attr.name = "drivers_autoprobe";
 	bus->drivers_autoprobe_attr.attr.mode = S_IWUSR | S_IRUGO;
-	bus->drivers_autoprobe_attr.attr.owner = bus->owner;
 	bus->drivers_autoprobe_attr.show = show_drivers_autoprobe;
 	bus->drivers_autoprobe_attr.store = store_drivers_autoprobe;
 	retval = bus_create_file(bus, &bus->drivers_autoprobe_attr);
@@ -610,7 +620,8 @@ int bus_add_driver(struct device_driver *drv)
 	if (error)
 		goto out_put_bus;
 	drv->kobj.kset = &bus->drivers;
-	if ((error = kobject_register(&drv->kobj)))
+	error = kobject_register(&drv->kobj);
+	if (error)
 		goto out_put_bus;
 
 	if (drv->bus->drivers_autoprobe) {
@@ -760,7 +771,8 @@ static int bus_add_attrs(struct bus_type * bus)
 
 	if (bus->bus_attrs) {
 		for (i = 0; attr_name(bus->bus_attrs[i]); i++) {
-			if ((error = bus_create_file(bus,&bus->bus_attrs[i])))
+			error = bus_create_file(bus,&bus->bus_attrs[i]);
+			if (error)
 				goto Err;
 		}
 	}

drivers/base/class.c

@@ -312,9 +312,6 @@ static void class_dev_release(struct kobject * kobj)
 
 	pr_debug("device class '%s': release.\n", cd->class_id);
 
-	kfree(cd->devt_attr);
-	cd->devt_attr = NULL;
-
 	if (cd->release)
 		cd->release(cd);
 	else if (cls->release)
@@ -547,6 +544,9 @@ static ssize_t show_dev(struct class_device *class_dev, char *buf)
 	return print_dev_t(buf, class_dev->devt);
 }
 
+static struct class_device_attribute class_devt_attr =
+	__ATTR(dev, S_IRUGO, show_dev, NULL);
+
 static ssize_t store_uevent(struct class_device *class_dev,
 			    const char *buf, size_t count)
 {
@@ -554,6 +554,9 @@ static ssize_t store_uevent(struct class_device *class_dev,
 	return count;
 }
 
+static struct class_device_attribute class_uevent_attr =
+	__ATTR(uevent, S_IWUSR, NULL, store_uevent);
+
 void class_device_initialize(struct class_device *class_dev)
 {
 	kobj_set_kset_s(class_dev, class_obj_subsys);
@@ -603,32 +606,15 @@ int class_device_add(struct class_device *class_dev)
 				  &parent_class->subsys.kobj, "subsystem");
 	if (error)
 		goto out3;
-	class_dev->uevent_attr.attr.name = "uevent";
-	class_dev->uevent_attr.attr.mode = S_IWUSR;
-	class_dev->uevent_attr.attr.owner = parent_class->owner;
-	class_dev->uevent_attr.store = store_uevent;
-	error = class_device_create_file(class_dev, &class_dev->uevent_attr);
+
+	error = class_device_create_file(class_dev, &class_uevent_attr);
 	if (error)
 		goto out3;
 
 	if (MAJOR(class_dev->devt)) {
-		struct class_device_attribute *attr;
-		attr = kzalloc(sizeof(*attr), GFP_KERNEL);
-		if (!attr) {
-			error = -ENOMEM;
-			goto out4;
-		}
-		attr->attr.name = "dev";
-		attr->attr.mode = S_IRUGO;
-		attr->attr.owner = parent_class->owner;
-		attr->show = show_dev;
-		error = class_device_create_file(class_dev, attr);
-		if (error) {
-			kfree(attr);
+		error = class_device_create_file(class_dev, &class_devt_attr);
+		if (error)
 			goto out4;
-		}
-
-		class_dev->devt_attr = attr;
 	}
 
 	error = class_device_add_attrs(class_dev);
@@ -671,10 +657,10 @@ int class_device_add(struct class_device *class_dev)
  out6:
 	class_device_remove_attrs(class_dev);
  out5:
-	if (class_dev->devt_attr)
-		class_device_remove_file(class_dev, class_dev->devt_attr);
+	if (MAJOR(class_dev->devt))
+		class_device_remove_file(class_dev, &class_devt_attr);
  out4:
-	class_device_remove_file(class_dev, &class_dev->uevent_attr);
+	class_device_remove_file(class_dev, &class_uevent_attr);
  out3:
 	kobject_del(&class_dev->kobj);
  out2:
@@ -774,9 +760,9 @@ void class_device_del(struct class_device *class_dev)
 		sysfs_remove_link(&class_dev->kobj, "device");
 	}
 	sysfs_remove_link(&class_dev->kobj, "subsystem");
-	class_device_remove_file(class_dev, &class_dev->uevent_attr);
-	if (class_dev->devt_attr)
-		class_device_remove_file(class_dev, class_dev->devt_attr);
+	class_device_remove_file(class_dev, &class_uevent_attr);
+	if (MAJOR(class_dev->devt))
+		class_device_remove_file(class_dev, &class_devt_attr);
 	class_device_remove_attrs(class_dev);
 	class_device_remove_groups(class_dev);
 

drivers/base/core.c

@@ -310,6 +310,9 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
+static struct device_attribute uevent_attr =
+	__ATTR(uevent, S_IRUGO | S_IWUSR, show_uevent, store_uevent);
+
 static int device_add_attributes(struct device *dev,
 				 struct device_attribute *attrs)
 {
@@ -423,6 +426,9 @@ static ssize_t show_dev(struct device *dev, struct device_attribute *attr,
 	return print_dev_t(buf, dev->devt);
 }
 
+static struct device_attribute devt_attr =
+	__ATTR(dev, S_IRUGO, show_dev, NULL);
+
 /*
  *	devices_subsys - structure to be registered with kobject core.
  */
@@ -681,35 +687,14 @@ int device_add(struct device *dev)
 		blocking_notifier_call_chain(&dev->bus->bus_notifier,
 					     BUS_NOTIFY_ADD_DEVICE, dev);
 
-	dev->uevent_attr.attr.name = "uevent";
-	dev->uevent_attr.attr.mode = S_IRUGO | S_IWUSR;
-	if (dev->driver)
-		dev->uevent_attr.attr.owner = dev->driver->owner;
-	dev->uevent_attr.store = store_uevent;
-	dev->uevent_attr.show = show_uevent;
-	error = device_create_file(dev, &dev->uevent_attr);
+	error = device_create_file(dev, &uevent_attr);
 	if (error)
 		goto attrError;
 
 	if (MAJOR(dev->devt)) {
-		struct device_attribute *attr;
-		attr = kzalloc(sizeof(*attr), GFP_KERNEL);
-		if (!attr) {
-			error = -ENOMEM;
-			goto ueventattrError;
-		}
-		attr->attr.name = "dev";
-		attr->attr.mode = S_IRUGO;
-		if (dev->driver)
-			attr->attr.owner = dev->driver->owner;
-		attr->show = show_dev;
-		error = device_create_file(dev, attr);
-		if (error) {
-			kfree(attr);
+		error = device_create_file(dev, &devt_attr);
+		if (error)
 			goto ueventattrError;
-		}
-
-		dev->devt_attr = attr;
 	}
 
 	if (dev->class) {
@@ -733,11 +718,14 @@ int device_add(struct device *dev)
 		}
 	}
 
-	if ((error = device_add_attrs(dev)))
+	error = device_add_attrs(dev);
+	if (error)
 		goto AttrsError;
-	if ((error = device_pm_add(dev)))
+	error = device_pm_add(dev);
+	if (error)
 		goto PMError;
-	if ((error = bus_add_device(dev)))
+	error = bus_add_device(dev);
+	if (error)
 		goto BusError;
 	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	bus_attach_device(dev);
@@ -767,10 +755,8 @@ int device_add(struct device *dev)
 					     BUS_NOTIFY_DEL_DEVICE, dev);
 	device_remove_attrs(dev);
  AttrsError:
-	if (dev->devt_attr) {
-		device_remove_file(dev, dev->devt_attr);
-		kfree(dev->devt_attr);
-	}
+	if (MAJOR(dev->devt))
+		device_remove_file(dev, &devt_attr);
 
 	if (dev->class) {
 		sysfs_remove_link(&dev->kobj, "subsystem");
@@ -792,7 +778,7 @@ int device_add(struct device *dev)
 		}
 	}
  ueventattrError:
-	device_remove_file(dev, &dev->uevent_attr);
+	device_remove_file(dev, &uevent_attr);
  attrError:
 	kobject_uevent(&dev->kobj, KOBJ_REMOVE);
 	kobject_del(&dev->kobj);
@@ -869,10 +855,8 @@ void device_del(struct device * dev)
 
 	if (parent)
 		klist_del(&dev->knode_parent);
-	if (dev->devt_attr) {
-		device_remove_file(dev, dev->devt_attr);
-		kfree(dev->devt_attr);
-	}
+	if (MAJOR(dev->devt))
+		device_remove_file(dev, &devt_attr);
 	if (dev->class) {
 		sysfs_remove_link(&dev->kobj, "subsystem");
 		/* If this is not a "fake" compatible device, remove the
@@ -926,7 +910,7 @@ void device_del(struct device * dev)
 			up(&dev->class->sem);
 		}
 	}
-	device_remove_file(dev, &dev->uevent_attr);
+	device_remove_file(dev, &uevent_attr);
 	device_remove_attrs(dev);
 	bus_remove_device(dev);
 

drivers/base/dd.c

@@ -281,24 +281,16 @@ int driver_attach(struct device_driver * drv)
 	return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
 }
 
-/**
- *	device_release_driver - manually detach device from driver.
- *	@dev:	device.
- *
- *	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.
+ *	When called for a USB interface, @dev->parent->sem must be held as well.
  */
-
 static void __device_release_driver(struct device * dev)
 {
 	struct device_driver * drv;
 
-	drv = dev->driver;
+	drv = get_driver(dev->driver);
 	if (drv) {
-		get_driver(drv);
 		driver_sysfs_remove(dev);
 		sysfs_remove_link(&dev->kobj, "driver");
 		klist_remove(&dev->knode_driver);
@@ -318,6 +310,13 @@ static void __device_release_driver(struct device * dev)
 	}
 }
 
+/**
+ *	device_release_driver - manually detach device from driver.
+ *	@dev:	device.
+ *
+ *	Manually detach device from driver.
+ *	When called for a USB interface, @dev->parent->sem must be held.
+ */
 void device_release_driver(struct device * dev)
 {
 	/*

drivers/base/devres.c

@@ -10,6 +10,8 @@
 #include <linux/device.h>
 #include <linux/module.h>
 
+#include "base.h"
+
 struct devres_node {
 	struct list_head		entry;
 	dr_release_t			release;

drivers/base/firmware_class.c

@@ -175,7 +175,7 @@ static ssize_t firmware_loading_store(struct device *dev,
 static DEVICE_ATTR(loading, 0644, firmware_loading_show, firmware_loading_store);
 
 static ssize_t
-firmware_data_read(struct kobject *kobj,
+firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr,
 		   char *buffer, loff_t offset, size_t count)
 {
 	struct device *dev = to_dev(kobj);
@@ -240,7 +240,7 @@ fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
  *	the driver as a firmware image.
  **/
 static ssize_t
-firmware_data_write(struct kobject *kobj,
+firmware_data_write(struct kobject *kobj, struct bin_attribute *bin_attr,
 		    char *buffer, loff_t offset, size_t count)
 {
 	struct device *dev = to_dev(kobj);
@@ -271,7 +271,7 @@ firmware_data_write(struct kobject *kobj,
 }
 
 static struct bin_attribute firmware_attr_data_tmpl = {
-	.attr = {.name = "data", .mode = 0644, .owner = THIS_MODULE},
+	.attr = {.name = "data", .mode = 0644},
 	.size = 0,
 	.read = firmware_data_read,
 	.write = firmware_data_write,

drivers/base/power/main.c

@@ -20,64 +20,44 @@
  */
 
 #include <linux/device.h>
+#include <linux/mutex.h>
+
 #include "power.h"
 
 LIST_HEAD(dpm_active);
 LIST_HEAD(dpm_off);
 LIST_HEAD(dpm_off_irq);
 
-DECLARE_MUTEX(dpm_sem);
-DECLARE_MUTEX(dpm_list_sem);
+DEFINE_MUTEX(dpm_mtx);
+DEFINE_MUTEX(dpm_list_mtx);
 
 int (*platform_enable_wakeup)(struct device *dev, int is_on);
 
-
-/**
- *	device_pm_set_parent - Specify power dependency.
- *	@dev:		Device who needs power.
- *	@parent:	Device that supplies power.
- *
- *	This function is used to manually describe a power-dependency
- *	relationship. It may be used to specify a transversal relationship
- *	(where the power supplier is not the physical (or electrical)
- *	ancestor of a specific device.
- *	The effect of this is that the supplier will not be powered down
- *	before the power dependent.
- */
-
-void device_pm_set_parent(struct device * dev, struct device * parent)
-{
-	put_device(dev->power.pm_parent);
-	dev->power.pm_parent = get_device(parent);
-}
-EXPORT_SYMBOL_GPL(device_pm_set_parent);
-
-int device_pm_add(struct device * dev)
+int device_pm_add(struct device *dev)
 {
 	int error;
 
 	pr_debug("PM: Adding info for %s:%s\n",
 		 dev->bus ? dev->bus->name : "No Bus",
 		 kobject_name(&dev->kobj));
-	down(&dpm_list_sem);
+	mutex_lock(&dpm_list_mtx);
 	list_add_tail(&dev->power.entry, &dpm_active);
-	device_pm_set_parent(dev, dev->parent);
-	if ((error = dpm_sysfs_add(dev)))
+	error = dpm_sysfs_add(dev);
+	if (error)
 		list_del(&dev->power.entry);
-	up(&dpm_list_sem);
+	mutex_unlock(&dpm_list_mtx);
 	return error;
 }
 
-void device_pm_remove(struct device * dev)
+void device_pm_remove(struct device *dev)
 {
 	pr_debug("PM: Removing info for %s:%s\n",
 		 dev->bus ? dev->bus->name : "No Bus",
 		 kobject_name(&dev->kobj));
-	down(&dpm_list_sem);
+	mutex_lock(&dpm_list_mtx);
 	dpm_sysfs_remove(dev);
-	put_device(dev->power.pm_parent);
 	list_del_init(&dev->power.entry);
-	up(&dpm_list_sem);
+	mutex_unlock(&dpm_list_mtx);
 }
 
 

drivers/base/power/power.h

@@ -14,12 +14,12 @@ extern void device_shutdown(void);
 /*
  * Used to synchronize global power management operations.
  */
-extern struct semaphore dpm_sem;
+extern struct mutex dpm_mtx;
 
 /*
  * Used to serialize changes to the dpm_* lists.
  */
-extern struct semaphore dpm_list_sem;
+extern struct mutex dpm_list_mtx;
 
 /*
  * The PM lists.

drivers/base/power/resume.c

@@ -29,14 +29,6 @@ int resume_device(struct device * dev)
 
 	down(&dev->sem);
 
-	if (dev->power.pm_parent
-			&& dev->power.pm_parent->power.power_state.event) {
-		dev_err(dev, "PM: resume from %d, parent %s still %d\n",
-			dev->power.power_state.event,
-			dev->power.pm_parent->bus_id,
-			dev->power.pm_parent->power.power_state.event);
-	}
-
 	if (dev->bus && dev->bus->resume) {
 		dev_dbg(dev,"resuming\n");
 		error = dev->bus->resume(dev);
@@ -80,7 +72,7 @@ static int resume_device_early(struct device * dev)
  */
 void dpm_resume(void)
 {
-	down(&dpm_list_sem);
+	mutex_lock(&dpm_list_mtx);
 	while(!list_empty(&dpm_off)) {
 		struct list_head * entry = dpm_off.next;
 		struct device * dev = to_device(entry);
@@ -88,13 +80,12 @@ void dpm_resume(void)
 		get_device(dev);
 		list_move_tail(entry, &dpm_active);
 
-		up(&dpm_list_sem);
-		if (!dev->power.prev_state.event)
-			resume_device(dev);
-		down(&dpm_list_sem);
+		mutex_unlock(&dpm_list_mtx);
+		resume_device(dev);
+		mutex_lock(&dpm_list_mtx);
 		put_device(dev);
 	}
-	up(&dpm_list_sem);
+	mutex_unlock(&dpm_list_mtx);
 }
 
 
@@ -108,9 +99,9 @@ void dpm_resume(void)
 void device_resume(void)
 {
 	might_sleep();
-	down(&dpm_sem);
+	mutex_lock(&dpm_mtx);
 	dpm_resume();
-	up(&dpm_sem);
+	mutex_unlock(&dpm_mtx);
 }
 
 EXPORT_SYMBOL_GPL(device_resume);

drivers/base/power/runtime.c

@@ -32,9 +32,9 @@ static void runtime_resume(struct device * dev)
 
 void dpm_runtime_resume(struct device * dev)
 {
-	down(&dpm_sem);
+	mutex_lock(&dpm_mtx);
 	runtime_resume(dev);
-	up(&dpm_sem);
+	mutex_unlock(&dpm_mtx);
 }
 EXPORT_SYMBOL(dpm_runtime_resume);
 
@@ -49,7 +49,7 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state)
 {
 	int error = 0;
 
-	down(&dpm_sem);
+	mutex_lock(&dpm_mtx);
 	if (dev->power.power_state.event == state.event)
 		goto Done;
 
@@ -59,7 +59,7 @@ int dpm_runtime_suspend(struct device * dev, pm_message_t state)
 	if (!(error = suspend_device(dev, state)))
 		dev->power.power_state = state;
  Done:
-	up(&dpm_sem);
+	mutex_unlock(&dpm_mtx);
 	return error;
 }
 EXPORT_SYMBOL(dpm_runtime_suspend);
@@ -78,8 +78,8 @@ EXPORT_SYMBOL(dpm_runtime_suspend);
  */
 void dpm_set_power_state(struct device * dev, pm_message_t state)
 {
-	down(&dpm_sem);
+	mutex_lock(&dpm_mtx);
 	dev->power.power_state = state;
-	up(&dpm_sem);
+	mutex_unlock(&dpm_mtx);
 }
 #endif  /*  0  */

drivers/base/power/suspend.c

@@ -40,6 +40,14 @@ static inline char *suspend_verb(u32 event)
 }
 
 
+static void
+suspend_device_dbg(struct device *dev, pm_message_t state, char *info)
+{
+	dev_dbg(dev, "%s%s%s\n", info, suspend_verb(state.event),
+		((state.event == PM_EVENT_SUSPEND) && device_may_wakeup(dev)) ?
+		", may wakeup" : "");
+}
+
 /**
  *	suspend_device - Save state of one device.
  *	@dev:	Device.
@@ -55,49 +63,21 @@ int suspend_device(struct device * dev, pm_message_t state)
 		dev_dbg(dev, "PM: suspend %d-->%d\n",
 			dev->power.power_state.event, state.event);
 	}
-	if (dev->power.pm_parent
-			&& dev->power.pm_parent->power.power_state.event) {
-		dev_err(dev,
-			"PM: suspend %d->%d, parent %s already %d\n",
-			dev->power.power_state.event, state.event,
-			dev->power.pm_parent->bus_id,
-			dev->power.pm_parent->power.power_state.event);
-	}
-
-	dev->power.prev_state = dev->power.power_state;
 
-	if (dev->class && dev->class->suspend && !dev->power.power_state.event) {
-		dev_dbg(dev, "class %s%s\n",
-			suspend_verb(state.event),
-			((state.event == PM_EVENT_SUSPEND)
-					&& device_may_wakeup(dev))
-				? ", may wakeup"
-				: ""
-			);
+	if (dev->class && dev->class->suspend) {
+		suspend_device_dbg(dev, state, "class ");
 		error = dev->class->suspend(dev, state);
 		suspend_report_result(dev->class->suspend, error);
 	}
 
-	if (!error && dev->type && dev->type->suspend && !dev->power.power_state.event) {
-		dev_dbg(dev, "%s%s\n",
-			suspend_verb(state.event),
-			((state.event == PM_EVENT_SUSPEND)
-					&& device_may_wakeup(dev))
-				? ", may wakeup"
-				: ""
-			);
+	if (!error && dev->type && dev->type->suspend) {
+		suspend_device_dbg(dev, state, "type ");
 		error = dev->type->suspend(dev, state);
 		suspend_report_result(dev->type->suspend, error);
 	}
 
-	if (!error && dev->bus && dev->bus->suspend && !dev->power.power_state.event) {
-		dev_dbg(dev, "%s%s\n",
-			suspend_verb(state.event),
-			((state.event == PM_EVENT_SUSPEND)
-					&& device_may_wakeup(dev))
-				? ", may wakeup"
-				: ""
-			);
+	if (!error && dev->bus && dev->bus->suspend) {
+		suspend_device_dbg(dev, state, "");
 		error = dev->bus->suspend(dev, state);
 		suspend_report_result(dev->bus->suspend, error);
 	}
@@ -108,21 +88,15 @@ int suspend_device(struct device * dev, pm_message_t state)
 
 /*
  * This is called with interrupts off, only a single CPU
- * running. We can't do down() on a semaphore (and we don't
+ * running. We can't acquire a mutex or semaphore (and we don't
  * need the protection)
  */
 static int suspend_device_late(struct device *dev, pm_message_t state)
 {
 	int error = 0;
 
-	if (dev->bus && dev->bus->suspend_late && !dev->power.power_state.event) {
-		dev_dbg(dev, "LATE %s%s\n",
-			suspend_verb(state.event),
-			((state.event == PM_EVENT_SUSPEND)
-					&& device_may_wakeup(dev))
-				? ", may wakeup"
-				: ""
-			);
+	if (dev->bus && dev->bus->suspend_late) {
+		suspend_device_dbg(dev, state, "LATE ");
 		error = dev->bus->suspend_late(dev, state);
 		suspend_report_result(dev->bus->suspend_late, error);
 	}
@@ -153,18 +127,18 @@ int device_suspend(pm_message_t state)
 	int error = 0;
 
 	might_sleep();
-	down(&dpm_sem);
-	down(&dpm_list_sem);
+	mutex_lock(&dpm_mtx);
+	mutex_lock(&dpm_list_mtx);
 	while (!list_empty(&dpm_active) && error == 0) {
 		struct list_head * entry = dpm_active.prev;
 		struct device * dev = to_device(entry);
 
 		get_device(dev);
-		up(&dpm_list_sem);
+		mutex_unlock(&dpm_list_mtx);
 
 		error = suspend_device(dev, state);
 
-		down(&dpm_list_sem);
+		mutex_lock(&dpm_list_mtx);
 
 		/* Check if the device got removed */
 		if (!list_empty(&dev->power.entry)) {
@@ -179,11 +153,11 @@ int device_suspend(pm_message_t state)
 				error == -EAGAIN ? " (please convert to suspend_late)" : "");
 		put_device(dev);
 	}
-	up(&dpm_list_sem);
+	mutex_unlock(&dpm_list_mtx);
 	if (error)
 		dpm_resume();
 
-	up(&dpm_sem);
+	mutex_unlock(&dpm_mtx);
 	return error;
 }
 

drivers/base/sys.c

@@ -21,7 +21,7 @@
 #include <linux/string.h>
 #include <linux/pm.h>
 #include <linux/device.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include "base.h"
 
@@ -155,7 +155,7 @@ EXPORT_SYMBOL_GPL(sysdev_class_unregister);
 
 
 static LIST_HEAD(sysdev_drivers);
-static DECLARE_MUTEX(sysdev_drivers_lock);
+static DEFINE_MUTEX(sysdev_drivers_lock);
 
 /**
  *	sysdev_driver_register - Register auxillary driver
@@ -172,7 +172,7 @@ static DECLARE_MUTEX(sysdev_drivers_lock);
 int sysdev_driver_register(struct sysdev_class * cls,
 			   struct sysdev_driver * drv)
 {
-	down(&sysdev_drivers_lock);
+	mutex_lock(&sysdev_drivers_lock);
 	if (cls && kset_get(&cls->kset)) {
 		list_add_tail(&drv->entry, &cls->drivers);
 
@@ -184,7 +184,7 @@ int sysdev_driver_register(struct sysdev_class * cls,
 		}
 	} else
 		list_add_tail(&drv->entry, &sysdev_drivers);
-	up(&sysdev_drivers_lock);
+	mutex_unlock(&sysdev_drivers_lock);
 	return 0;
 }
 
@@ -197,7 +197,7 @@ int sysdev_driver_register(struct sysdev_class * cls,
 void sysdev_driver_unregister(struct sysdev_class * cls,
 			      struct sysdev_driver * drv)
 {
-	down(&sysdev_drivers_lock);
+	mutex_lock(&sysdev_drivers_lock);
 	list_del_init(&drv->entry);
 	if (cls) {
 		if (drv->remove) {
@@ -207,7 +207,7 @@ void sysdev_driver_unregister(struct sysdev_class * cls,
 		}
 		kset_put(&cls->kset);
 	}
-	up(&sysdev_drivers_lock);
+	mutex_unlock(&sysdev_drivers_lock);
 }
 
 EXPORT_SYMBOL_GPL(sysdev_driver_register);
@@ -246,7 +246,7 @@ int sysdev_register(struct sys_device * sysdev)
 	if (!error) {
 		struct sysdev_driver * drv;
 
-		down(&sysdev_drivers_lock);
+		mutex_lock(&sysdev_drivers_lock);
 		/* Generic notification is implicit, because it's that
 		 * code that should have called us.
 		 */
@@ -262,7 +262,7 @@ int sysdev_register(struct sys_device * sysdev)
 			if (drv->add)
 				drv->add(sysdev);
 		}
-		up(&sysdev_drivers_lock);
+		mutex_unlock(&sysdev_drivers_lock);
 	}
 	return error;
 }
@@ -271,7 +271,7 @@ void sysdev_unregister(struct sys_device * sysdev)
 {
 	struct sysdev_driver * drv;
 
-	down(&sysdev_drivers_lock);
+	mutex_lock(&sysdev_drivers_lock);
 	list_for_each_entry(drv, &sysdev_drivers, entry) {
 		if (drv->remove)
 			drv->remove(sysdev);
@@ -281,7 +281,7 @@ void sysdev_unregister(struct sys_device * sysdev)
 		if (drv->remove)
 			drv->remove(sysdev);
 	}
-	up(&sysdev_drivers_lock);
+	mutex_unlock(&sysdev_drivers_lock);
 
 	kobject_unregister(&sysdev->kobj);
 }
@@ -308,7 +308,7 @@ void sysdev_shutdown(void)
 
 	pr_debug("Shutting Down System Devices\n");
 
-	down(&sysdev_drivers_lock);
+	mutex_lock(&sysdev_drivers_lock);
 	list_for_each_entry_reverse(cls, &system_subsys.list,
 				    kset.kobj.entry) {
 		struct sys_device * sysdev;
@@ -337,7 +337,7 @@ void sysdev_shutdown(void)
 				cls->shutdown(sysdev);
 		}
 	}
-	up(&sysdev_drivers_lock);
+	mutex_unlock(&sysdev_drivers_lock);
 }
 
 static void __sysdev_resume(struct sys_device *dev)

drivers/block/pktcdvd.c

@@ -146,8 +146,7 @@ static void pkt_kobj_release(struct kobject *kobj)
  **********************************************************/
 
 #define DEF_ATTR(_obj,_name,_mode) \
-	static struct attribute _obj = { \
-		.name = _name, .owner = THIS_MODULE, .mode = _mode }
+	static struct attribute _obj = { .name = _name, .mode = _mode }
 
 /**********************************************************
   /sys/class/pktcdvd/pktcdvd[0-7]/

drivers/char/ipmi/ipmi_msghandler.c

@@ -2171,52 +2171,42 @@ static int create_files(struct bmc_device *bmc)
 	int err;
 
 	bmc->device_id_attr.attr.name = "device_id";
-	bmc->device_id_attr.attr.owner = THIS_MODULE;
 	bmc->device_id_attr.attr.mode = S_IRUGO;
 	bmc->device_id_attr.show = device_id_show;
 
 	bmc->provides_dev_sdrs_attr.attr.name = "provides_device_sdrs";
-	bmc->provides_dev_sdrs_attr.attr.owner = THIS_MODULE;
 	bmc->provides_dev_sdrs_attr.attr.mode = S_IRUGO;
 	bmc->provides_dev_sdrs_attr.show = provides_dev_sdrs_show;
 
 	bmc->revision_attr.attr.name = "revision";
-	bmc->revision_attr.attr.owner = THIS_MODULE;
 	bmc->revision_attr.attr.mode = S_IRUGO;
 	bmc->revision_attr.show = revision_show;
 
 	bmc->firmware_rev_attr.attr.name = "firmware_revision";
-	bmc->firmware_rev_attr.attr.owner = THIS_MODULE;
 	bmc->firmware_rev_attr.attr.mode = S_IRUGO;
 	bmc->firmware_rev_attr.show = firmware_rev_show;
 
 	bmc->version_attr.attr.name = "ipmi_version";
-	bmc->version_attr.attr.owner = THIS_MODULE;
 	bmc->version_attr.attr.mode = S_IRUGO;
 	bmc->version_attr.show = ipmi_version_show;
 
 	bmc->add_dev_support_attr.attr.name = "additional_device_support";
-	bmc->add_dev_support_attr.attr.owner = THIS_MODULE;
 	bmc->add_dev_support_attr.attr.mode = S_IRUGO;
 	bmc->add_dev_support_attr.show = add_dev_support_show;
 
 	bmc->manufacturer_id_attr.attr.name = "manufacturer_id";
-	bmc->manufacturer_id_attr.attr.owner = THIS_MODULE;
 	bmc->manufacturer_id_attr.attr.mode = S_IRUGO;
 	bmc->manufacturer_id_attr.show = manufacturer_id_show;
 
 	bmc->product_id_attr.attr.name = "product_id";
-	bmc->product_id_attr.attr.owner = THIS_MODULE;
 	bmc->product_id_attr.attr.mode = S_IRUGO;
 	bmc->product_id_attr.show = product_id_show;
 
 	bmc->guid_attr.attr.name = "guid";
-	bmc->guid_attr.attr.owner = THIS_MODULE;
 	bmc->guid_attr.attr.mode = S_IRUGO;
 	bmc->guid_attr.show = guid_show;
 
 	bmc->aux_firmware_rev_attr.attr.name = "aux_firmware_revision";
-	bmc->aux_firmware_rev_attr.attr.owner = THIS_MODULE;
 	bmc->aux_firmware_rev_attr.attr.mode = S_IRUGO;
 	bmc->aux_firmware_rev_attr.show = aux_firmware_rev_show;
 

drivers/cpufreq/cpufreq_stats.c

@@ -25,8 +25,7 @@ static spinlock_t cpufreq_stats_lock;
 
 #define CPUFREQ_STATDEVICE_ATTR(_name,_mode,_show) \
 static struct freq_attr _attr_##_name = {\
-	.attr = {.name = __stringify(_name), .owner = THIS_MODULE, \
-		.mode = _mode, }, \
+	.attr = {.name = __stringify(_name), .mode = _mode, }, \
 	.show = _show,\
 };
 

drivers/cpufreq/cpufreq_userspace.c

@@ -120,7 +120,7 @@ store_speed (struct cpufreq_policy *policy, const char *buf, size_t count)
 
 static struct freq_attr freq_attr_scaling_setspeed =
 {
-	.attr = { .name = "scaling_setspeed", .mode = 0644, .owner = THIS_MODULE },
+	.attr = { .name = "scaling_setspeed", .mode = 0644 },
 	.show = show_speed,
 	.store = store_speed,
 };

drivers/cpufreq/freq_table.c

@@ -199,7 +199,6 @@ static ssize_t show_available_freqs (struct cpufreq_policy *policy, char *buf)
 struct freq_attr cpufreq_freq_attr_scaling_available_freqs = {
 	.attr = { .name = "scaling_available_frequencies",
 		  .mode = 0444,
-		  .owner=THIS_MODULE
 		},
 	.show = show_available_freqs,
 };

drivers/firmware/Kconfig

@@ -84,4 +84,13 @@ config DCDBAS
 	  Say Y or M here to enable the driver for use by Dell systems
 	  management software such as Dell OpenManage.
 
+config DMIID
+    bool "Export DMI identification via sysfs to userspace"
+    depends on DMI
+    default y
+	help
+	  Say Y here if you want to query SMBIOS/DMI system identification
+	  information from userspace through /sys/class/dmi/id/ or if you want
+	  DMI-based module auto-loading.
+
 endmenu

drivers/firmware/Makefile

@@ -7,3 +7,4 @@ obj-$(CONFIG_EFI_VARS)		+= efivars.o
 obj-$(CONFIG_EFI_PCDP)		+= pcdp.o
 obj-$(CONFIG_DELL_RBU)          += dell_rbu.o
 obj-$(CONFIG_DCDBAS)		+= dcdbas.o
+obj-$(CONFIG_DMIID)		+= dmi-id.o

drivers/firmware/dcdbas.c

@@ -149,8 +149,9 @@ static ssize_t smi_data_buf_size_store(struct device *dev,
 	return count;
 }
 
-static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos,
-			     size_t count)
+static ssize_t smi_data_read(struct kobject *kobj,
+			     struct bin_attribute *bin_attr,
+			     char *buf, loff_t pos, size_t count)
 {
 	size_t max_read;
 	ssize_t ret;
@@ -170,8 +171,9 @@ static ssize_t smi_data_read(struct kobject *kobj, char *buf, loff_t pos,
 	return ret;
 }
 
-static ssize_t smi_data_write(struct kobject *kobj, char *buf, loff_t pos,
-			      size_t count)
+static ssize_t smi_data_write(struct kobject *kobj,
+			      struct bin_attribute *bin_attr,
+			      char *buf, loff_t pos, size_t count)
 {
 	ssize_t ret;
 

drivers/firmware/dcdbas.h

@@ -67,8 +67,7 @@
 #define DCDBAS_BIN_ATTR_RW(_name) \
 struct bin_attribute bin_attr_##_name = { \
 	.attr =  { .name = __stringify(_name), \
-		   .mode = 0600, \
-		   .owner = THIS_MODULE }, \
+		   .mode = 0600 }, \
 	.read =  _name##_read, \
 	.write = _name##_write, \
 }

drivers/firmware/dell_rbu.c

@@ -543,8 +543,9 @@ static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count)
 	return ret_count;
 }
 
-static ssize_t read_rbu_data(struct kobject *kobj, char *buffer,
-	loff_t pos, size_t count)
+static ssize_t read_rbu_data(struct kobject *kobj,
+			     struct bin_attribute *bin_attr,
+			     char *buffer, loff_t pos, size_t count)
 {
 	ssize_t ret_count = 0;
 
@@ -591,8 +592,9 @@ static void callbackfn_rbu(const struct firmware *fw, void *context)
 	spin_unlock(&rbu_data.lock);
 }
 
-static ssize_t read_rbu_image_type(struct kobject *kobj, char *buffer,
-	loff_t pos, size_t count)
+static ssize_t read_rbu_image_type(struct kobject *kobj,
+				   struct bin_attribute *bin_attr,
+				   char *buffer, loff_t pos, size_t count)
 {
 	int size = 0;
 	if (!pos)
@@ -600,8 +602,9 @@ static ssize_t read_rbu_image_type(struct kobject *kobj, char *buffer,
 	return size;
 }
 
-static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
-	loff_t pos, size_t count)
+static ssize_t write_rbu_image_type(struct kobject *kobj,
+				    struct bin_attribute *bin_attr,
+				    char *buffer, loff_t pos, size_t count)
 {
 	int rc = count;
 	int req_firm_rc = 0;
@@ -660,8 +663,9 @@ static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
 	return rc;
 }
 
-static ssize_t read_rbu_packet_size(struct kobject *kobj, char *buffer,
-	loff_t pos, size_t count)
+static ssize_t read_rbu_packet_size(struct kobject *kobj,
+				    struct bin_attribute *bin_attr,
+				    char *buffer, loff_t pos, size_t count)
 {
 	int size = 0;
 	if (!pos) {
@@ -672,8 +676,9 @@ static ssize_t read_rbu_packet_size(struct kobject *kobj, char *buffer,
 	return size;
 }
 
-static ssize_t write_rbu_packet_size(struct kobject *kobj, char *buffer,
-	loff_t pos, size_t count)
+static ssize_t write_rbu_packet_size(struct kobject *kobj,
+				     struct bin_attribute *bin_attr,
+				     char *buffer, loff_t pos, size_t count)
 {
 	unsigned long temp;
 	spin_lock(&rbu_data.lock);
@@ -687,18 +692,18 @@ static ssize_t write_rbu_packet_size(struct kobject *kobj, char *buffer,
 }
 
 static struct bin_attribute rbu_data_attr = {
-	.attr = {.name = "data",.owner = THIS_MODULE,.mode = 0444},
+	.attr = {.name = "data", .mode = 0444},
 	.read = read_rbu_data,
 };
 
 static struct bin_attribute rbu_image_type_attr = {
-	.attr = {.name = "image_type",.owner = THIS_MODULE,.mode = 0644},
+	.attr = {.name = "image_type", .mode = 0644},
 	.read = read_rbu_image_type,
 	.write = write_rbu_image_type,
 };
 
 static struct bin_attribute rbu_packet_size_attr = {
-	.attr = {.name = "packet_size",.owner = THIS_MODULE,.mode = 0644},
+	.attr = {.name = "packet_size", .mode = 0644},
 	.read = read_rbu_packet_size,
 	.write = write_rbu_packet_size,
 };

drivers/firmware/dmi-id.c

+/*
+ * Export SMBIOS/DMI info via sysfs to userspace
+ *
+ * Copyright 2007, Lennart Poettering
+ *
+ * Licensed under GPLv2
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/dmi.h>
+#include <linux/device.h>
+#include <linux/autoconf.h>
+
+#define DEFINE_DMI_ATTR(_name, _mode, _show)		\
+static struct device_attribute sys_dmi_##_name##_attr =	\
+	__ATTR(_name, _mode, _show, NULL);
+
+#define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field)			\
+static ssize_t sys_dmi_##_name##_show(struct device *dev,		\
+				      struct device_attribute *attr,	\
+				      char *page)			\
+{									\
+	ssize_t len;							\
+	len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(_field)); \
+	page[len-1] = '\n';						\
+	return len;							\
+}									\
+DEFINE_DMI_ATTR(_name, _mode, sys_dmi_##_name##_show);
+
+DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor,		0444, DMI_BIOS_VENDOR);
+DEFINE_DMI_ATTR_WITH_SHOW(bios_version,		0444, DMI_BIOS_VERSION);
+DEFINE_DMI_ATTR_WITH_SHOW(bios_date,		0444, DMI_BIOS_DATE);
+DEFINE_DMI_ATTR_WITH_SHOW(sys_vendor,		0444, DMI_SYS_VENDOR);
+DEFINE_DMI_ATTR_WITH_SHOW(product_name,		0444, DMI_PRODUCT_NAME);
+DEFINE_DMI_ATTR_WITH_SHOW(product_version,	0444, DMI_PRODUCT_VERSION);
+DEFINE_DMI_ATTR_WITH_SHOW(product_serial,	0400, DMI_PRODUCT_SERIAL);
+DEFINE_DMI_ATTR_WITH_SHOW(product_uuid,		0400, DMI_PRODUCT_UUID);
+DEFINE_DMI_ATTR_WITH_SHOW(board_vendor,		0444, DMI_BOARD_VENDOR);
+DEFINE_DMI_ATTR_WITH_SHOW(board_name,		0444, DMI_BOARD_NAME);
+DEFINE_DMI_ATTR_WITH_SHOW(board_version,	0444, DMI_BOARD_VERSION);
+DEFINE_DMI_ATTR_WITH_SHOW(board_serial,		0400, DMI_BOARD_SERIAL);
+DEFINE_DMI_ATTR_WITH_SHOW(board_asset_tag,	0444, DMI_BOARD_ASSET_TAG);
+DEFINE_DMI_ATTR_WITH_SHOW(chassis_vendor,	0444, DMI_CHASSIS_VENDOR);
+DEFINE_DMI_ATTR_WITH_SHOW(chassis_type,		0444, DMI_CHASSIS_TYPE);
+DEFINE_DMI_ATTR_WITH_SHOW(chassis_version,	0444, DMI_CHASSIS_VERSION);
+DEFINE_DMI_ATTR_WITH_SHOW(chassis_serial,	0400, DMI_CHASSIS_SERIAL);
+DEFINE_DMI_ATTR_WITH_SHOW(chassis_asset_tag,	0444, DMI_CHASSIS_ASSET_TAG);
+
+static void ascii_filter(char *d, const char *s)
+{
+	/* Filter out characters we don't want to see in the modalias string */
+	for (; *s; s++)
+		if (*s > ' ' && *s < 127 && *s != ':')
+			*(d++) = *s;
+
+	*d = 0;
+}
+
+static ssize_t get_modalias(char *buffer, size_t buffer_size)
+{
+	static const struct mafield {
+		const char *prefix;
+		int field;
+	} fields[] = {
+		{ "bvn", DMI_BIOS_VENDOR },
+		{ "bvr", DMI_BIOS_VERSION },
+		{ "bd",  DMI_BIOS_DATE },
+		{ "svn", DMI_SYS_VENDOR },
+		{ "pn",  DMI_PRODUCT_NAME },
+		{ "pvr", DMI_PRODUCT_VERSION },
+		{ "rvn", DMI_BOARD_VENDOR },
+		{ "rn",  DMI_BOARD_NAME },
+		{ "rvr", DMI_BOARD_VERSION },
+		{ "cvn", DMI_CHASSIS_VENDOR },
+		{ "ct",  DMI_CHASSIS_TYPE },
+		{ "cvr", DMI_CHASSIS_VERSION },
+		{ NULL,  DMI_NONE }
+	};
+
+	ssize_t l, left;
+	char *p;
+	const struct mafield *f;
+
+	strcpy(buffer, "dmi");
+	p = buffer + 3; left = buffer_size - 4;
+
+	for (f = fields; f->prefix && left > 0; f++) {
+		const char *c;
+		char *t;
+
+		c = dmi_get_system_info(f->field);
+		if (!c)
+			continue;
+
+		t = kmalloc(strlen(c) + 1, GFP_KERNEL);
+		if (!t)
+			break;
+		ascii_filter(t, c);
+		l = scnprintf(p, left, ":%s%s", f->prefix, t);
+		kfree(t);
+
+		p += l;
+		left -= l;
+	}
+
+	p[0] = ':';
+	p[1] = 0;
+
+	return p - buffer + 1;
+}
+
+static ssize_t sys_dmi_modalias_show(struct device *dev,
+				     struct device_attribute *attr, char *page)
+{
+	ssize_t r;
+	r = get_modalias(page, PAGE_SIZE-1);
+	page[r] = '\n';
+	page[r+1] = 0;
+	return r+1;
+}
+
+DEFINE_DMI_ATTR(modalias, 0444, sys_dmi_modalias_show);
+
+static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2];
+
+static struct attribute_group sys_dmi_attribute_group = {
+	.attrs = sys_dmi_attributes,
+};
+
+static struct attribute_group* sys_dmi_attribute_groups[] = {
+	&sys_dmi_attribute_group,
+	NULL
+};
+
+static int dmi_dev_uevent(struct device *dev, char **envp,
+			    int num_envp, char *buffer, int buffer_size)
+{
+	strcpy(buffer, "MODALIAS=");
+	get_modalias(buffer+9, buffer_size-9);
+	envp[0] = buffer;
+	envp[1] = NULL;
+
+	return 0;
+}
+
+static struct class dmi_class = {
+	.name = "dmi",
+	.dev_release = (void(*)(struct device *)) kfree,
+	.dev_uevent = dmi_dev_uevent,
+};
+
+static struct device *dmi_dev;
+
+/* Initialization */
+
+#define ADD_DMI_ATTR(_name, _field) \
+	if (dmi_get_system_info(_field)) \
+		sys_dmi_attributes[i++] = & sys_dmi_##_name##_attr.attr;
+
+extern int dmi_available;
+
+static int __init dmi_id_init(void)
+{
+	int ret, i;
+
+	if (!dmi_available)
+		return -ENODEV;
+
+	/* Not necessarily all DMI fields are available on all
+	 * systems, hence let's built an attribute table of just
+	 * what's available */
+	i = 0;
+	ADD_DMI_ATTR(bios_vendor,       DMI_BIOS_VENDOR);
+	ADD_DMI_ATTR(bios_version,      DMI_BIOS_VERSION);
+	ADD_DMI_ATTR(bios_date,         DMI_BIOS_DATE);
+	ADD_DMI_ATTR(sys_vendor,        DMI_SYS_VENDOR);
+	ADD_DMI_ATTR(product_name,      DMI_PRODUCT_NAME);
+	ADD_DMI_ATTR(product_version,   DMI_PRODUCT_VERSION);
+	ADD_DMI_ATTR(product_serial,    DMI_PRODUCT_SERIAL);
+	ADD_DMI_ATTR(product_uuid,      DMI_PRODUCT_UUID);
+	ADD_DMI_ATTR(board_vendor,      DMI_BOARD_VENDOR);
+	ADD_DMI_ATTR(board_name,        DMI_BOARD_NAME);
+	ADD_DMI_ATTR(board_version,     DMI_BOARD_VERSION);
+	ADD_DMI_ATTR(board_serial,      DMI_BOARD_SERIAL);
+	ADD_DMI_ATTR(board_asset_tag,   DMI_BOARD_ASSET_TAG);
+	ADD_DMI_ATTR(chassis_vendor,    DMI_CHASSIS_VENDOR);
+	ADD_DMI_ATTR(chassis_type,      DMI_CHASSIS_TYPE);
+	ADD_DMI_ATTR(chassis_version,   DMI_CHASSIS_VERSION);
+	ADD_DMI_ATTR(chassis_serial,    DMI_CHASSIS_SERIAL);
+	ADD_DMI_ATTR(chassis_asset_tag, DMI_CHASSIS_ASSET_TAG);
+	sys_dmi_attributes[i++] = &sys_dmi_modalias_attr.attr;
+
+	ret = class_register(&dmi_class);
+	if (ret)
+		return ret;
+
+	dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL);
+	if (!dmi_dev) {
+		ret = -ENOMEM;
+		goto fail_class_unregister;
+	}
+
+	dmi_dev->class = &dmi_class;
+	strcpy(dmi_dev->bus_id, "id");
+	dmi_dev->groups = sys_dmi_attribute_groups;
+
+	ret = device_register(dmi_dev);
+	if (ret)
+		goto fail_class_unregister;
+
+	return 0;
+
+fail_class_unregister:
+
+	class_unregister(&dmi_class);
+
+	return ret;
+}
+
+arch_initcall(dmi_id_init);

drivers/firmware/dmi_scan.c

@@ -84,6 +84,7 @@ static int __init dmi_checksum(u8 *buf)
 
 static char *dmi_ident[DMI_STRING_MAX];
 static LIST_HEAD(dmi_devices);
+int dmi_available;
 
 /*
  *	Save a DMI string
@@ -102,6 +103,51 @@ static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string)
 	dmi_ident[slot] = p;
 }
 
+static void __init dmi_save_uuid(struct dmi_header *dm, int slot, int index)
+{
+	u8 *d = (u8*) dm + index;
+	char *s;
+	int is_ff = 1, is_00 = 1, i;
+
+	if (dmi_ident[slot])
+		return;
+
+	for (i = 0; i < 16 && (is_ff || is_00); i++) {
+		if(d[i] != 0x00) is_ff = 0;
+		if(d[i] != 0xFF) is_00 = 0;
+	}
+
+	if (is_ff || is_00)
+		return;
+
+	s = dmi_alloc(16*2+4+1);
+	if (!s)
+		return;
+
+	sprintf(s,
+		"%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
+		d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
+		d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]);
+
+        dmi_ident[slot] = s;
+}
+
+static void __init dmi_save_type(struct dmi_header *dm, int slot, int index)
+{
+	u8 *d = (u8*) dm + index;
+	char *s;
+
+	if (dmi_ident[slot])
+		return;
+
+	s = dmi_alloc(4);
+	if (!s)
+		return;
+
+	sprintf(s, "%u", *d & 0x7F);
+	dmi_ident[slot] = s;
+}
+
 static void __init dmi_save_devices(struct dmi_header *dm)
 {
 	int i, count = (dm->length - sizeof(struct dmi_header)) / 2;
@@ -192,11 +238,21 @@ static void __init dmi_decode(struct dmi_header *dm)
 		dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
 		dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
 		dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7);
+		dmi_save_uuid(dm, DMI_PRODUCT_UUID, 8);
 		break;
 	case 2:		/* Base Board Information */
 		dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
 		dmi_save_ident(dm, DMI_BOARD_NAME, 5);
 		dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
+		dmi_save_ident(dm, DMI_BOARD_SERIAL, 7);
+		dmi_save_ident(dm, DMI_BOARD_ASSET_TAG, 8);
+		break;
+	case 3:		/* Chassis Information */
+		dmi_save_ident(dm, DMI_CHASSIS_VENDOR, 4);
+		dmi_save_type(dm, DMI_CHASSIS_TYPE, 5);
+		dmi_save_ident(dm, DMI_CHASSIS_VERSION, 6);
+		dmi_save_ident(dm, DMI_CHASSIS_SERIAL, 7);
+		dmi_save_ident(dm, DMI_CHASSIS_ASSET_TAG, 8);
 		break;
 	case 10:	/* Onboard Devices Information */
 		dmi_save_devices(dm);
@@ -243,18 +299,20 @@ void __init dmi_scan_machine(void)
 		if (efi.smbios == EFI_INVALID_TABLE_ADDR)
 			goto out;
 
-               /* This is called as a core_initcall() because it isn't
-                * needed during early boot.  This also means we can
-                * iounmap the space when we're done with it.
-		*/
+		/* This is called as a core_initcall() because it isn't
+		 * needed during early boot.  This also means we can
+		 * iounmap the space when we're done with it.
+		 */
 		p = dmi_ioremap(efi.smbios, 32);
 		if (p == NULL)
 			goto out;
 
 		rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
 		dmi_iounmap(p, 32);
-		if (!rc)
+		if (!rc) {
+			dmi_available = 1;
 			return;
+		}
 	}
 	else {
 		/*
@@ -268,8 +326,10 @@ void __init dmi_scan_machine(void)
 
 		for (q = p; q < p + 0x10000; q += 16) {
 			rc = dmi_present(q);
-			if (!rc)
+			if (!rc) {
+				dmi_available = 1;
 				return;
+			}
 		}
 	}
  out:	printk(KERN_INFO "DMI not present or invalid.\n");
@@ -404,3 +464,4 @@ int dmi_get_year(int field)
 
 	return year;
 }
+

drivers/firmware/edd.c

@@ -74,7 +74,7 @@ static struct edd_device *edd_devices[EDD_MBR_SIG_MAX];
 
 #define EDD_DEVICE_ATTR(_name,_mode,_show,_test) \
 struct edd_attribute edd_attr_##_name = { 	\
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },	\
+	.attr = {.name = __stringify(_name), .mode = _mode },	\
 	.show	= _show,				\
 	.test	= _test,				\
 };

drivers/firmware/efivars.c

@@ -131,21 +131,21 @@ struct efivar_attribute {
 
 #define EFI_ATTR(_name, _mode, _show, _store) \
 struct subsys_attribute efi_attr_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE}, \
+	.attr = {.name = __stringify(_name), .mode = _mode}, \
 	.show = _show, \
 	.store = _store, \
 };
 
 #define EFIVAR_ATTR(_name, _mode, _show, _store) \
 struct efivar_attribute efivar_attr_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE}, \
+	.attr = {.name = __stringify(_name), .mode = _mode}, \
 	.show = _show, \
 	.store = _store, \
 };
 
 #define VAR_SUBSYS_ATTR(_name, _mode, _show, _store) \
 struct subsys_attribute var_subsys_attr_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE}, \
+	.attr = {.name = __stringify(_name), .mode = _mode}, \
 	.show = _show, \
 	.store = _store, \
 };

drivers/i2c/chips/eeprom.c

@@ -112,7 +112,8 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice)
 	mutex_unlock(&data->update_lock);
 }
 
-static ssize_t eeprom_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t eeprom_read(struct kobject *kobj, struct bin_attribute *bin_attr,
+			   char *buf, loff_t off, size_t count)
 {
 	struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj));
 	struct eeprom_data *data = i2c_get_clientdata(client);
@@ -145,7 +146,6 @@ static struct bin_attribute eeprom_attr = {
 	.attr = {
 		.name = "eeprom",
 		.mode = S_IRUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = EEPROM_SIZE,
 	.read = eeprom_read,

drivers/i2c/chips/max6875.c

@@ -126,8 +126,9 @@ static void max6875_update_slice(struct i2c_client *client, int slice)
 	mutex_unlock(&data->update_lock);
 }
 
-static ssize_t max6875_read(struct kobject *kobj, char *buf, loff_t off,
-			    size_t count)
+static ssize_t max6875_read(struct kobject *kobj,
+			    struct bin_attribute *bin_attr,
+			    char *buf, loff_t off, size_t count)
 {
 	struct i2c_client *client = kobj_to_i2c_client(kobj);
 	struct max6875_data *data = i2c_get_clientdata(client);
@@ -153,7 +154,6 @@ static struct bin_attribute user_eeprom_attr = {
 	.attr = {
 		.name = "eeprom",
 		.mode = S_IRUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = USER_EEPROM_SIZE,
 	.read = max6875_read,

drivers/infiniband/core/sysfs.c

@@ -479,7 +479,6 @@ alloc_group_attrs(ssize_t (*show)(struct ib_port *,
 
 		element->attr.attr.name  = element->name;
 		element->attr.attr.mode  = S_IRUGO;
-		element->attr.attr.owner = THIS_MODULE;
 		element->attr.show       = show;
 		element->index		 = i;
 

drivers/input/mouse/psmouse.h

@@ -119,7 +119,6 @@ static struct psmouse_attribute psmouse_attr_##_name = {			\
 		.attr	= {							\
 			.name	= __stringify(_name),				\
 			.mode	= _mode,					\
-			.owner	= THIS_MODULE,					\
 		},								\
 		.show	= psmouse_attr_show_helper,				\
 		.store	= psmouse_attr_set_helper,				\

drivers/macintosh/windfarm_core.c

@@ -212,7 +212,6 @@ int wf_register_control(struct wf_control *new_ct)
 	list_add(&new_ct->link, &wf_controls);
 
 	new_ct->attr.attr.name = new_ct->name;
-	new_ct->attr.attr.owner = THIS_MODULE;
 	new_ct->attr.attr.mode = 0644;
 	new_ct->attr.show = wf_show_control;
 	new_ct->attr.store = wf_store_control;
@@ -325,7 +324,6 @@ int wf_register_sensor(struct wf_sensor *new_sr)
 	list_add(&new_sr->link, &wf_sensors);
 
 	new_sr->attr.attr.name = new_sr->name;
-	new_sr->attr.attr.owner = THIS_MODULE;
 	new_sr->attr.attr.mode = 0444;
 	new_sr->attr.show = wf_show_sensor;
 	new_sr->attr.store = NULL;

drivers/misc/asus-laptop.c

@@ -737,8 +737,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
 	struct device_attribute dev_attr_##_name = {			\
 		.attr = {						\
 			.name = __stringify(_name),			\
-			.mode = 0,					\
-			.owner = THIS_MODULE },				\
+			.mode = 0 },					\
 		.show   = NULL,						\
 		.store  = NULL,						\
 	}

drivers/misc/msi-laptop.c

@@ -23,6 +23,8 @@
  * msi-laptop.c - MSI S270 laptop support. This laptop is sold under
  * various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
  *
+ * Driver also supports S271, S420 models.
+ *
  * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
  *
  *   lcd_level - Screen brightness: contains a single integer in the
@@ -281,25 +283,56 @@ static struct platform_device *msipf_device;
 
 /* Initialization */
 
+static int dmi_check_cb(struct dmi_system_id *id)
+{
+        printk("msi-laptop: Identified laptop model '%s'.\n", id->ident);
+        return 0;
+}
+
 static struct dmi_system_id __initdata msi_dmi_table[] = {
 	{
 		.ident = "MSI S270",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
-		}
+			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD")
+		},
+		.callback = dmi_check_cb
+	},
+	{
+		.ident = "MSI S271",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
+			DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
+		},
+		.callback = dmi_check_cb
+	},
+	{
+		.ident = "MSI S420",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
+			DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
+		},
+		.callback = dmi_check_cb
 	},
 	{
 		.ident = "Medion MD96100",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
-		}
+			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD")
+		},
+		.callback = dmi_check_cb
 	},
 	{ }
 };
 
-
 static int __init msi_init(void)
 {
 	int ret;
@@ -394,3 +427,8 @@ MODULE_AUTHOR("Lennart Poettering");
 MODULE_DESCRIPTION("MSI Laptop Support");
 MODULE_VERSION(MSI_DRIVER_VERSION);
 MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
+MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
+MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
+MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");

drivers/net/ibmveth.c

@@ -1337,7 +1337,7 @@ const char * buf, size_t count)
 
 #define ATTR(_name, _mode)      \
         struct attribute veth_##_name##_attr = {               \
-        .name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE \
+        .name = __stringify(_name), .mode = _mode, \
         };
 
 static ATTR(active, 0644);

drivers/parisc/pdc_stable.c

@@ -121,14 +121,14 @@ struct pdcspath_entry pdcspath_entry_##_name = { \
 
 #define PDCS_ATTR(_name, _mode, _show, _store) \
 struct subsys_attribute pdcs_attr_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE}, \
+	.attr = {.name = __stringify(_name), .mode = _mode}, \
 	.show = _show, \
 	.store = _store, \
 };
 
 #define PATHS_ATTR(_name, _mode, _show, _store) \
 struct pdcspath_attribute paths_attr_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE}, \
+	.attr = {.name = __stringify(_name), .mode = _mode}, \
 	.show = _show, \
 	.store = _store, \
 };

drivers/pci/hotplug/acpiphp_ibm.c

@@ -106,7 +106,8 @@ static int ibm_get_attention_status(struct hotplug_slot *slot, u8 *status);
 static void ibm_handle_events(acpi_handle handle, u32 event, void *context);
 static int ibm_get_table_from_acpi(char **bufp);
 static ssize_t ibm_read_apci_table(struct kobject *kobj,
-		char *buffer, loff_t pos, size_t size);
+				   struct bin_attribute *bin_attr,
+				   char *buffer, loff_t pos, size_t size);
 static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 		u32 lvl, void *context, void **rv);
 static int __init ibm_acpiphp_init(void);
@@ -117,7 +118,6 @@ static struct notification ibm_note;
 static struct bin_attribute ibm_apci_table_attr = {
 	    .attr = {
 		    .name = "apci_table",
-		    .owner = THIS_MODULE,
 		    .mode = S_IRUGO,
 	    },
 	    .read = ibm_read_apci_table,
@@ -358,7 +358,8 @@ static int ibm_get_table_from_acpi(char **bufp)
  * our solution is to only allow reading the table in all at once
  **/
 static ssize_t ibm_read_apci_table(struct kobject *kobj,
-		char *buffer, loff_t pos, size_t size)
+				   struct bin_attribute *bin_attr,
+				   char *buffer, loff_t pos, size_t size)
 {
 	int bytes_read = -EINVAL;
 	char *table = NULL;

drivers/pci/pci-sysfs.c

@@ -213,7 +213,8 @@ struct device_attribute pci_dev_attrs[] = {
 };
 
 static ssize_t
-pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+		char *buf, loff_t off, size_t count)
 {
 	struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
 	unsigned int size = 64;
@@ -285,7 +286,8 @@ pci_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+		 char *buf, loff_t off, size_t count)
 {
 	struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
 	unsigned int size = count;
@@ -352,7 +354,8 @@ pci_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * callback routine (pci_legacy_read).
  */
 ssize_t
-pci_read_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+		   char *buf, loff_t off, size_t count)
 {
         struct pci_bus *bus = to_pci_bus(container_of(kobj,
                                                       struct class_device,
@@ -376,7 +379,8 @@ pci_read_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * callback routine (pci_legacy_write).
  */
 ssize_t
-pci_write_legacy_io(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+		    char *buf, loff_t off, size_t count)
 {
         struct pci_bus *bus = to_pci_bus(container_of(kobj,
 						      struct class_device,
@@ -499,7 +503,6 @@ static int pci_create_resource_files(struct pci_dev *pdev)
 			sprintf(res_attr_name, "resource%d", i);
 			res_attr->attr.name = res_attr_name;
 			res_attr->attr.mode = S_IRUSR | S_IWUSR;
-			res_attr->attr.owner = THIS_MODULE;
 			res_attr->size = pci_resource_len(pdev, i);
 			res_attr->mmap = pci_mmap_resource;
 			res_attr->private = &pdev->resource[i];
@@ -529,7 +532,8 @@ static inline void pci_remove_resource_files(struct pci_dev *dev) { return; }
  * writing anything except 0 enables it
  */
 static ssize_t
-pci_write_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+	      char *buf, loff_t off, size_t count)
 {
 	struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
 
@@ -552,7 +556,8 @@ pci_write_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
  * device corresponding to @kobj.
  */
 static ssize_t
-pci_read_rom(struct kobject *kobj, char *buf, loff_t off, size_t count)
+pci_read_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+	     char *buf, loff_t off, size_t count)
 {
 	struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
 	void __iomem *rom;
@@ -582,7 +587,6 @@ static struct bin_attribute pci_config_attr = {
 	.attr =	{
 		.name = "config",
 		.mode = S_IRUGO | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 256,
 	.read = pci_read_config,
@@ -593,7 +597,6 @@ static struct bin_attribute pcie_config_attr = {
 	.attr =	{
 		.name = "config",
 		.mode = S_IRUGO | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 4096,
 	.read = pci_read_config,
@@ -628,7 +631,6 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
 			rom_attr->size = pci_resource_len(pdev, PCI_ROM_RESOURCE);
 			rom_attr->attr.name = "rom";
 			rom_attr->attr.mode = S_IRUSR;
-			rom_attr->attr.owner = THIS_MODULE;
 			rom_attr->read = pci_read_rom;
 			rom_attr->write = pci_write_rom;
 			retval = sysfs_create_bin_file(&pdev->dev.kobj, rom_attr);

drivers/pci/probe.c

@@ -39,7 +39,6 @@ static void pci_create_legacy_files(struct pci_bus *b)
 		b->legacy_io->attr.name = "legacy_io";
 		b->legacy_io->size = 0xffff;
 		b->legacy_io->attr.mode = S_IRUSR | S_IWUSR;
-		b->legacy_io->attr.owner = THIS_MODULE;
 		b->legacy_io->read = pci_read_legacy_io;
 		b->legacy_io->write = pci_write_legacy_io;
 		class_device_create_bin_file(&b->class_dev, b->legacy_io);
@@ -49,7 +48,6 @@ static void pci_create_legacy_files(struct pci_bus *b)
 		b->legacy_mem->attr.name = "legacy_mem";
 		b->legacy_mem->size = 1024*1024;
 		b->legacy_mem->attr.mode = S_IRUSR | S_IWUSR;
-		b->legacy_mem->attr.owner = THIS_MODULE;
 		b->legacy_mem->mmap = pci_mmap_legacy_mem;
 		class_device_create_bin_file(&b->class_dev, b->legacy_mem);
 	}

drivers/pcmcia/socket_sysfs.c

@@ -283,7 +283,9 @@ static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off
 	return (ret);
 }
 
-static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t pccard_show_cis(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	unsigned int size = 0x200;
 
@@ -311,7 +313,9 @@ static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size
 	return (count);
 }
 
-static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t pccard_store_cis(struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buf, loff_t off, size_t count)
 {
 	struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
 	cisdump_t *cis;
@@ -366,7 +370,7 @@ static struct device_attribute *pccard_socket_attributes[] = {
 };
 
 static struct bin_attribute pccard_cis_attr = {
-	.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE},
+	.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
 	.size = 0x200,
 	.read = pccard_show_cis,
 	.write = pccard_store_cis,

drivers/rapidio/rio-sysfs.c

@@ -67,7 +67,8 @@ struct device_attribute rio_dev_attrs[] = {
 };
 
 static ssize_t
-rio_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+rio_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+		char *buf, loff_t off, size_t count)
 {
 	struct rio_dev *dev =
 	    to_rio_dev(container_of(kobj, struct device, kobj));
@@ -137,7 +138,8 @@ rio_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-rio_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
+rio_write_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+		 char *buf, loff_t off, size_t count)
 {
 	struct rio_dev *dev =
 	    to_rio_dev(container_of(kobj, struct device, kobj));
@@ -197,7 +199,6 @@ static struct bin_attribute rio_config_attr = {
 	.attr = {
 		 .name = "config",
 		 .mode = S_IRUGO | S_IWUSR,
-		 .owner = THIS_MODULE,
 		 },
 	.size = 0x200000,
 	.read = rio_read_config,

drivers/rtc/rtc-ds1553.c

@@ -258,8 +258,9 @@ static const struct rtc_class_ops ds1553_rtc_ops = {
 	.ioctl		= ds1553_rtc_ioctl,
 };
 
-static ssize_t ds1553_nvram_read(struct kobject *kobj, char *buf,
-				 loff_t pos, size_t size)
+static ssize_t ds1553_nvram_read(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t pos, size_t size)
 {
 	struct platform_device *pdev =
 		to_platform_device(container_of(kobj, struct device, kobj));
@@ -272,8 +273,9 @@ static ssize_t ds1553_nvram_read(struct kobject *kobj, char *buf,
 	return count;
 }
 
-static ssize_t ds1553_nvram_write(struct kobject *kobj, char *buf,
-				  loff_t pos, size_t size)
+static ssize_t ds1553_nvram_write(struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buf, loff_t pos, size_t size)
 {
 	struct platform_device *pdev =
 		to_platform_device(container_of(kobj, struct device, kobj));
@@ -290,7 +292,6 @@ static struct bin_attribute ds1553_nvram_attr = {
 	.attr = {
 		.name = "nvram",
 		.mode = S_IRUGO | S_IWUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = RTC_OFFSET,
 	.read = ds1553_nvram_read,

drivers/rtc/rtc-ds1742.c

@@ -127,8 +127,9 @@ static const struct rtc_class_ops ds1742_rtc_ops = {
 	.set_time	= ds1742_rtc_set_time,
 };
 
-static ssize_t ds1742_nvram_read(struct kobject *kobj, char *buf,
-				 loff_t pos, size_t size)
+static ssize_t ds1742_nvram_read(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t pos, size_t size)
 {
 	struct platform_device *pdev =
 		to_platform_device(container_of(kobj, struct device, kobj));
@@ -141,8 +142,9 @@ static ssize_t ds1742_nvram_read(struct kobject *kobj, char *buf,
 	return count;
 }
 
-static ssize_t ds1742_nvram_write(struct kobject *kobj, char *buf,
-				  loff_t pos, size_t size)
+static ssize_t ds1742_nvram_write(struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buf, loff_t pos, size_t size)
 {
 	struct platform_device *pdev =
 		to_platform_device(container_of(kobj, struct device, kobj));
@@ -159,7 +161,6 @@ static struct bin_attribute ds1742_nvram_attr = {
 	.attr = {
 		.name = "nvram",
 		.mode = S_IRUGO | S_IWUGO,
-		.owner = THIS_MODULE,
 	},
 	.read = ds1742_nvram_read,
 	.write = ds1742_nvram_write,

drivers/s390/cio/chp.c

@@ -141,8 +141,9 @@ static int s390_vary_chpid(struct chp_id chpid, int on)
 /*
  * Channel measurement related functions
  */
-static ssize_t chp_measurement_chars_read(struct kobject *kobj, char *buf,
-					  loff_t off, size_t count)
+static ssize_t chp_measurement_chars_read(struct kobject *kobj,
+					  struct bin_attribute *bin_attr,
+					  char *buf, loff_t off, size_t count)
 {
 	struct channel_path *chp;
 	unsigned int size;
@@ -165,7 +166,6 @@ static struct bin_attribute chp_measurement_chars_attr = {
 	.attr = {
 		.name = "measurement_chars",
 		.mode = S_IRUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = sizeof(struct cmg_chars),
 	.read = chp_measurement_chars_read,
@@ -193,8 +193,9 @@ static void chp_measurement_copy_block(struct cmg_entry *buf,
 	} while (reference_buf.values[0] != buf->values[0]);
 }
 
-static ssize_t chp_measurement_read(struct kobject *kobj, char *buf,
-				    loff_t off, size_t count)
+static ssize_t chp_measurement_read(struct kobject *kobj,
+				    struct bin_attribute *bin_attr,
+				    char *buf, loff_t off, size_t count)
 {
 	struct channel_path *chp;
 	struct channel_subsystem *css;
@@ -217,7 +218,6 @@ static struct bin_attribute chp_measurement_attr = {
 	.attr = {
 		.name = "measurement",
 		.mode = S_IRUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = sizeof(struct cmg_entry),
 	.read = chp_measurement_read,

drivers/s390/net/qeth_sys.c

@@ -991,7 +991,7 @@ static struct attribute_group qeth_osn_device_attr_group = {
 
 #define QETH_DEVICE_ATTR(_id,_name,_mode,_show,_store)			     \
 struct device_attribute dev_attr_##_id = {				     \
-	.attr = {.name=__stringify(_name), .mode=_mode, .owner=THIS_MODULE },\
+	.attr = {.name=__stringify(_name), .mode=_mode, },\
 	.show	= _show,						     \
 	.store	= _store,						     \
 };

drivers/scsi/arcmsr/arcmsr_attr.c

@@ -59,8 +59,9 @@
 struct class_device_attribute *arcmsr_host_attrs[];
 
 static ssize_t
-arcmsr_sysfs_iop_message_read(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+arcmsr_sysfs_iop_message_read(struct kobject *kobj,
+			      struct bin_attribute *bin_attr,
+			      char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
@@ -105,8 +106,9 @@ arcmsr_sysfs_iop_message_read(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-arcmsr_sysfs_iop_message_write(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+arcmsr_sysfs_iop_message_write(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
@@ -152,8 +154,9 @@ arcmsr_sysfs_iop_message_write(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-arcmsr_sysfs_iop_message_clear(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+arcmsr_sysfs_iop_message_clear(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *host = class_to_shost(cdev);
@@ -188,7 +191,6 @@ static struct bin_attribute arcmsr_sysfs_message_read_attr = {
 	.attr = {
 		.name = "mu_read",
 		.mode = S_IRUSR ,
-		.owner = THIS_MODULE,
 	},
 	.size = 1032,
 	.read = arcmsr_sysfs_iop_message_read,
@@ -198,7 +200,6 @@ static struct bin_attribute arcmsr_sysfs_message_write_attr = {
 	.attr = {
 		.name = "mu_write",
 		.mode = S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 1032,
 	.write = arcmsr_sysfs_iop_message_write,
@@ -208,7 +209,6 @@ static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
 	.attr = {
 		.name = "mu_clear",
 		.mode = S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 1,
 	.write = arcmsr_sysfs_iop_message_clear,

drivers/scsi/ipr.c

@@ -2465,6 +2465,7 @@ static void ipr_worker_thread(struct work_struct *work)
 /**
  * ipr_read_trace - Dump the adapter trace
  * @kobj:		kobject struct
+ * @bin_attr:		bin_attribute struct
  * @buf:		buffer
  * @off:		offset
  * @count:		buffer size
@@ -2472,8 +2473,9 @@ static void ipr_worker_thread(struct work_struct *work)
  * Return value:
  *	number of bytes printed to buffer
  **/
-static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
-			      loff_t off, size_t count)
+static ssize_t ipr_read_trace(struct kobject *kobj,
+			      struct bin_attribute *bin_attr,
+			      char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *shost = class_to_shost(cdev);
@@ -3166,6 +3168,7 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
 /**
  * ipr_read_dump - Dump the adapter
  * @kobj:		kobject struct
+ * @bin_attr:		bin_attribute struct
  * @buf:		buffer
  * @off:		offset
  * @count:		buffer size
@@ -3173,8 +3176,9 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
  * Return value:
  *	number of bytes printed to buffer
  **/
-static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
-			      loff_t off, size_t count)
+static ssize_t ipr_read_dump(struct kobject *kobj,
+			     struct bin_attribute *bin_attr,
+			     char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *shost = class_to_shost(cdev);
@@ -3327,6 +3331,7 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
 /**
  * ipr_write_dump - Setup dump state of adapter
  * @kobj:		kobject struct
+ * @bin_attr:		bin_attribute struct
  * @buf:		buffer
  * @off:		offset
  * @count:		buffer size
@@ -3334,8 +3339,9 @@ static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
  * Return value:
  *	number of bytes printed to buffer
  **/
-static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
-			      loff_t off, size_t count)
+static ssize_t ipr_write_dump(struct kobject *kobj,
+			      struct bin_attribute *bin_attr,
+			      char *buf, loff_t off, size_t count)
 {
 	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
 	struct Scsi_Host *shost = class_to_shost(cdev);

drivers/scsi/libsas/sas_expander.c

@@ -38,8 +38,10 @@ static int sas_disable_routing(struct domain_device *dev,  u8 *sas_addr);
 
 #if 0
 /* FIXME: smp needs to migrate into the sas class */
-static ssize_t smp_portal_read(struct kobject *, char *, loff_t, size_t);
-static ssize_t smp_portal_write(struct kobject *, char *, loff_t, size_t);
+static ssize_t smp_portal_read(struct kobject *, struct bin_attribute *,
+			       char *, loff_t, size_t);
+static ssize_t smp_portal_write(struct kobject *, struct bin_attribute *,
+				char *, loff_t, size_t);
 #endif
 
 /* ---------- SMP task management ---------- */
@@ -1368,7 +1370,6 @@ static void sas_ex_smp_hook(struct domain_device *dev)
 	memset(bin_attr, 0, sizeof(*bin_attr));
 
 	bin_attr->attr.name = SMP_BIN_ATTR_NAME;
-	bin_attr->attr.owner = THIS_MODULE;
 	bin_attr->attr.mode = 0600;
 
 	bin_attr->size = 0;
@@ -1846,8 +1847,9 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
 #if 0
 /* ---------- SMP portal ---------- */
 
-static ssize_t smp_portal_write(struct kobject *kobj, char *buf, loff_t offs,
-				size_t size)
+static ssize_t smp_portal_write(struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buf, loff_t offs, size_t size)
 {
 	struct domain_device *dev = to_dom_device(kobj);
 	struct expander_device *ex = &dev->ex_dev;
@@ -1873,8 +1875,9 @@ static ssize_t smp_portal_write(struct kobject *kobj, char *buf, loff_t offs,
 	return size;
 }
 
-static ssize_t smp_portal_read(struct kobject *kobj, char *buf, loff_t offs,
-			       size_t size)
+static ssize_t smp_portal_read(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t offs, size_t size)
 {
 	struct domain_device *dev = to_dom_device(kobj);
 	struct expander_device *ex = &dev->ex_dev;

drivers/scsi/lpfc/lpfc_attr.c

@@ -1133,7 +1133,8 @@ struct class_device_attribute *lpfc_host_attrs[] = {
 };
 
 static ssize_t
-sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
+sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
+		   char *buf, loff_t off, size_t count)
 {
 	size_t buf_off;
 	struct Scsi_Host *host = class_to_shost(container_of(kobj,
@@ -1165,7 +1166,8 @@ sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
+		  char *buf, loff_t off, size_t count)
 {
 	size_t buf_off;
 	uint32_t * tmp_ptr;
@@ -1200,7 +1202,6 @@ static struct bin_attribute sysfs_ctlreg_attr = {
 	.attr = {
 		.name = "ctlreg",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 256,
 	.read = sysfs_ctlreg_read,
@@ -1222,7 +1223,8 @@ sysfs_mbox_idle (struct lpfc_hba * phba)
 }
 
 static ssize_t
-sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
+sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
+		 char *buf, loff_t off, size_t count)
 {
 	struct Scsi_Host * host =
 		class_to_shost(container_of(kobj, struct class_device, kobj));
@@ -1274,7 +1276,8 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
+		char *buf, loff_t off, size_t count)
 {
 	struct Scsi_Host *host =
 		class_to_shost(container_of(kobj, struct class_device,
@@ -1422,7 +1425,6 @@ static struct bin_attribute sysfs_mbox_attr = {
 	.attr = {
 		.name = "mbox",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = MAILBOX_CMD_SIZE,
 	.read = sysfs_mbox_read,

drivers/scsi/qla2xxx/qla_attr.c

@@ -11,8 +11,9 @@
 /* SYSFS attributes --------------------------------------------------------- */
 
 static ssize_t
-qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_read_fw_dump(struct kobject *kobj,
+			   struct bin_attribute *bin_attr,
+			   char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -31,8 +32,9 @@ qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_write_fw_dump(struct kobject *kobj,
+			    struct bin_attribute *bin_attr,
+			    char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -73,7 +75,6 @@ static struct bin_attribute sysfs_fw_dump_attr = {
 	.attr = {
 		.name = "fw_dump",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 0,
 	.read = qla2x00_sysfs_read_fw_dump,
@@ -81,8 +82,9 @@ static struct bin_attribute sysfs_fw_dump_attr = {
 };
 
 static ssize_t
-qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_read_nvram(struct kobject *kobj,
+			 struct bin_attribute *bin_attr,
+			 char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -101,8 +103,9 @@ qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_write_nvram(struct kobject *kobj,
+			  struct bin_attribute *bin_attr,
+			  char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -149,7 +152,6 @@ static struct bin_attribute sysfs_nvram_attr = {
 	.attr = {
 		.name = "nvram",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 512,
 	.read = qla2x00_sysfs_read_nvram,
@@ -157,8 +159,9 @@ static struct bin_attribute sysfs_nvram_attr = {
 };
 
 static ssize_t
-qla2x00_sysfs_read_optrom(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_read_optrom(struct kobject *kobj,
+			  struct bin_attribute *bin_attr,
+			  char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -176,8 +179,9 @@ qla2x00_sysfs_read_optrom(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-qla2x00_sysfs_write_optrom(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_write_optrom(struct kobject *kobj,
+			   struct bin_attribute *bin_attr,
+			   char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -198,7 +202,6 @@ static struct bin_attribute sysfs_optrom_attr = {
 	.attr = {
 		.name = "optrom",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = OPTROM_SIZE_24XX,
 	.read = qla2x00_sysfs_read_optrom,
@@ -206,8 +209,9 @@ static struct bin_attribute sysfs_optrom_attr = {
 };
 
 static ssize_t
-qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -279,15 +283,15 @@ static struct bin_attribute sysfs_optrom_ctl_attr = {
 	.attr = {
 		.name = "optrom_ctl",
 		.mode = S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 0,
 	.write = qla2x00_sysfs_write_optrom_ctl,
 };
 
 static ssize_t
-qla2x00_sysfs_read_vpd(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_read_vpd(struct kobject *kobj,
+		       struct bin_attribute *bin_attr,
+		       char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -305,8 +309,9 @@ qla2x00_sysfs_read_vpd(struct kobject *kobj, char *buf, loff_t off,
 }
 
 static ssize_t
-qla2x00_sysfs_write_vpd(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_write_vpd(struct kobject *kobj,
+			struct bin_attribute *bin_attr,
+			char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -327,7 +332,6 @@ static struct bin_attribute sysfs_vpd_attr = {
 	.attr = {
 		.name = "vpd",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = 0,
 	.read = qla2x00_sysfs_read_vpd,
@@ -335,8 +339,9 @@ static struct bin_attribute sysfs_vpd_attr = {
 };
 
 static ssize_t
-qla2x00_sysfs_read_sfp(struct kobject *kobj, char *buf, loff_t off,
-    size_t count)
+qla2x00_sysfs_read_sfp(struct kobject *kobj,
+		       struct bin_attribute *bin_attr,
+		       char *buf, loff_t off, size_t count)
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
@@ -375,7 +380,6 @@ static struct bin_attribute sysfs_sfp_attr = {
 	.attr = {
 		.name = "sfp",
 		.mode = S_IRUSR | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = SFP_DEV_SIZE * 2,
 	.read = qla2x00_sysfs_read_sfp,

drivers/spi/at25.c

@@ -111,7 +111,8 @@ at25_ee_read(
 }
 
 static ssize_t
-at25_bin_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+at25_bin_read(struct kobject *kobj, struct bin_attribute *bin_attr,
+	      char *buf, loff_t off, size_t count)
 {
 	struct device		*dev;
 	struct at25_data	*at25;
@@ -236,7 +237,8 @@ at25_ee_write(struct at25_data *at25, char *buf, loff_t off, size_t count)
 }
 
 static ssize_t
-at25_bin_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
+at25_bin_write(struct kobject *kobj, struct bin_attribute *bin_attr,
+	       char *buf, loff_t off, size_t count)
 {
 	struct device		*dev;
 	struct at25_data	*at25;
@@ -314,7 +316,6 @@ static int at25_probe(struct spi_device *spi)
 	 */
 	at25->bin.attr.name = "eeprom";
 	at25->bin.attr.mode = S_IRUSR;
-	at25->bin.attr.owner = THIS_MODULE;
 	at25->bin.read = at25_bin_read;
 
 	at25->bin.size = at25->chip.byte_len;

drivers/usb/core/hub.c

@@ -1109,11 +1109,6 @@ void usb_root_hub_lost_power(struct usb_device *rhdev)
 
 	dev_warn(&rhdev->dev, "root hub lost power or was reset\n");
 
-	/* Make sure no potential wakeup events get lost,
-	 * by forcing the root hub to be resumed.
-	 */
-	rhdev->dev.power.prev_state.event = PM_EVENT_ON;
-
 	spin_lock_irqsave(&device_state_lock, flags);
 	hub = hdev_to_hub(rhdev);
 	for (port1 = 1; port1 <= rhdev->maxchild; ++port1) {

drivers/video/aty/radeon_base.c

@@ -2102,7 +2102,9 @@ static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u
 }
 
 
-static ssize_t radeon_show_edid1(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t radeon_show_edid1(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t off, size_t count)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -2113,7 +2115,9 @@ static ssize_t radeon_show_edid1(struct kobject *kobj, char *buf, loff_t off, si
 }
 
 
-static ssize_t radeon_show_edid2(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t radeon_show_edid2(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t off, size_t count)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct pci_dev *pdev = to_pci_dev(dev);
@@ -2126,7 +2130,6 @@ static ssize_t radeon_show_edid2(struct kobject *kobj, char *buf, loff_t off, si
 static struct bin_attribute edid1_attr = {
 	.attr   = {
 		.name	= "edid1",
-		.owner	= THIS_MODULE,
 		.mode	= 0444,
 	},
 	.size	= EDID_LENGTH,
@@ -2136,7 +2139,6 @@ static struct bin_attribute edid1_attr = {
 static struct bin_attribute edid2_attr = {
 	.attr   = {
 		.name	= "edid2",
-		.owner	= THIS_MODULE,
 		.mode	= 0444,
 	},
 	.size	= EDID_LENGTH,

drivers/video/backlight/backlight.c

@@ -172,7 +172,7 @@ static struct class backlight_class = {
 
 #define DECLARE_ATTR(_name,_mode,_show,_store)			\
 {							 	\
-	.attr	= { .name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },	\
+	.attr	= { .name = __stringify(_name), .mode = _mode }, \
 	.show	= _show,					\
 	.store	= _store,					\
 }

drivers/video/backlight/lcd.c

@@ -157,7 +157,7 @@ static struct class lcd_class = {
 
 #define DECLARE_ATTR(_name,_mode,_show,_store)			\
 {							 	\
-	.attr	= { .name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },	\
+	.attr	= { .name = __stringify(_name), .mode = _mode }, \
 	.show	= _show,					\
 	.store	= _store,					\
 }

drivers/w1/slaves/w1_ds2433.c

@@ -91,8 +91,9 @@ static int w1_f23_refresh_block(struct w1_slave *sl, struct w1_f23_data *data,
 }
 #endif	/* CONFIG_W1_SLAVE_DS2433_CRC */
 
-static ssize_t w1_f23_read_bin(struct kobject *kobj, char *buf, loff_t off,
-			       size_t count)
+static ssize_t w1_f23_read_bin(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 #ifdef CONFIG_W1_SLAVE_DS2433_CRC
@@ -199,8 +200,9 @@ static int w1_f23_write(struct w1_slave *sl, int addr, int len, const u8 *data)
 	return 0;
 }
 
-static ssize_t w1_f23_write_bin(struct kobject *kobj, char *buf, loff_t off,
-				size_t count)
+static ssize_t w1_f23_write_bin(struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 	int addr, len, idx;
@@ -252,7 +254,6 @@ static struct bin_attribute w1_f23_bin_attr = {
 	.attr = {
 		.name = "eeprom",
 		.mode = S_IRUGO | S_IWUSR,
-		.owner = THIS_MODULE,
 	},
 	.size = W1_EEPROM_SIZE,
 	.read = w1_f23_read_bin,

drivers/w1/slaves/w1_therm.c

@@ -42,13 +42,13 @@ static u8 bad_roms[][9] = {
 				{}
 			};
 
-static ssize_t w1_therm_read_bin(struct kobject *, char *, loff_t, size_t);
+static ssize_t w1_therm_read_bin(struct kobject *, struct bin_attribute *,
+				 char *, loff_t, size_t);
 
 static struct bin_attribute w1_therm_bin_attr = {
 	.attr = {
 		.name = "w1_slave",
 		.mode = S_IRUGO,
-		.owner = THIS_MODULE,
 	},
 	.size = W1_SLAVE_DATA_SIZE,
 	.read = w1_therm_read_bin,
@@ -159,7 +159,9 @@ static int w1_therm_check_rom(u8 rom[9])
 	return 0;
 }
 
-static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t w1_therm_read_bin(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 	struct w1_master *dev = sl->master;

drivers/w1/w1.c

@@ -105,7 +105,9 @@ static ssize_t w1_slave_read_name(struct device *dev, struct device_attribute *a
 	return sprintf(buf, "%s\n", sl->name);
 }
 
-static ssize_t w1_slave_read_id(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t w1_slave_read_id(struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 
@@ -128,7 +130,6 @@ static struct bin_attribute w1_slave_attr_bin_id = {
       .attr = {
               .name = "id",
               .mode = S_IRUGO,
-              .owner = THIS_MODULE,
       },
       .size = 8,
       .read = w1_slave_read_id,
@@ -136,7 +137,9 @@ static struct bin_attribute w1_slave_attr_bin_id = {
 
 /* Default family */
 
-static ssize_t w1_default_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t w1_default_write(struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 
@@ -153,7 +156,9 @@ static ssize_t w1_default_write(struct kobject *kobj, char *buf, loff_t off, siz
 	return count;
 }
 
-static ssize_t w1_default_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+static ssize_t w1_default_read(struct kobject *kobj,
+			       struct bin_attribute *bin_attr,
+			       char *buf, loff_t off, size_t count)
 {
 	struct w1_slave *sl = kobj_to_w1_slave(kobj);
 
@@ -167,7 +172,6 @@ static struct bin_attribute w1_default_attr = {
       .attr = {
               .name = "rw",
               .mode = S_IRUGO | S_IWUSR,
-              .owner = THIS_MODULE,
       },
       .size = PAGE_SIZE,
       .read = w1_default_read,

drivers/zorro/zorro-sysfs.c

@@ -49,8 +49,9 @@ static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *
 
 static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
 
-static ssize_t zorro_read_config(struct kobject *kobj, char *buf, loff_t off,
-				 size_t count)
+static ssize_t zorro_read_config(struct kobject *kobj,
+				 struct bin_attribute *bin_attr,
+				 char *buf, loff_t off, size_t count)
 {
 	struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
 					   kobj));
@@ -78,7 +79,6 @@ static struct bin_attribute zorro_config_attr = {
 	.attr =	{
 		.name = "config",
 		.mode = S_IRUGO | S_IWUSR,
-		.owner = THIS_MODULE
 	},
 	.size = sizeof(struct ConfigDev),
 	.read = zorro_read_config,

fs/debugfs/inode.c

@@ -368,6 +368,69 @@ void debugfs_remove(struct dentry *dentry)
 }
 EXPORT_SYMBOL_GPL(debugfs_remove);
 
+/**
+ * debugfs_rename - rename a file/directory in the debugfs filesystem
+ * @old_dir: a pointer to the parent dentry for the renamed object. This
+ *          should be a directory dentry.
+ * @old_dentry: dentry of an object to be renamed.
+ * @new_dir: a pointer to the parent dentry where the object should be
+ *          moved. This should be a directory dentry.
+ * @new_name: a pointer to a string containing the target name.
+ *
+ * This function renames a file/directory in debugfs.  The target must not
+ * exist for rename to succeed.
+ *
+ * This function will return a pointer to old_dentry (which is updated to
+ * reflect renaming) if it succeeds. If an error occurs, %NULL will be
+ * returned.
+ *
+ * If debugfs is not enabled in the kernel, the value -%ENODEV will be
+ * returned.
+ */
+struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+		struct dentry *new_dir, const char *new_name)
+{
+	int error;
+	struct dentry *dentry = NULL, *trap;
+	const char *old_name;
+
+	trap = lock_rename(new_dir, old_dir);
+	/* Source or destination directories don't exist? */
+	if (!old_dir->d_inode || !new_dir->d_inode)
+		goto exit;
+	/* Source does not exist, cyclic rename, or mountpoint? */
+	if (!old_dentry->d_inode || old_dentry == trap ||
+	    d_mountpoint(old_dentry))
+		goto exit;
+	dentry = lookup_one_len(new_name, new_dir, strlen(new_name));
+	/* Lookup failed, cyclic rename or target exists? */
+	if (IS_ERR(dentry) || dentry == trap || dentry->d_inode)
+		goto exit;
+
+	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
+
+	error = simple_rename(old_dir->d_inode, old_dentry, new_dir->d_inode,
+		dentry);
+	if (error) {
+		fsnotify_oldname_free(old_name);
+		goto exit;
+	}
+	d_move(old_dentry, dentry);
+	fsnotify_move(old_dir->d_inode, new_dir->d_inode, old_name,
+		old_dentry->d_name.name, S_ISDIR(old_dentry->d_inode->i_mode),
+		NULL, old_dentry->d_inode);
+	fsnotify_oldname_free(old_name);
+	unlock_rename(new_dir, old_dir);
+	dput(dentry);
+	return old_dentry;
+exit:
+	if (dentry && !IS_ERR(dentry))
+		dput(dentry);
+	unlock_rename(new_dir, old_dir);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(debugfs_rename);
+
 static decl_subsys(debug, NULL, NULL);
 
 static int __init debugfs_init(void)

fs/ecryptfs/main.c

@@ -840,8 +840,6 @@ static int __init ecryptfs_init(void)
 		goto out;
 	}
 	kobj_set_kset_s(&ecryptfs_subsys, fs_subsys);
-	sysfs_attr_version.attr.owner = THIS_MODULE;
-	sysfs_attr_version_str.attr.owner = THIS_MODULE;
 	rc = do_sysfs_registration();
 	if (rc) {
 		printk(KERN_ERR "sysfs registration failed\n");

fs/ocfs2/cluster/masklog.c

@@ -74,7 +74,6 @@ struct mlog_attribute {
 #define define_mask(_name) {			\
 	.attr = {				\
 		.name = #_name,			\
-		.owner = THIS_MODULE,		\
 		.mode = S_IRUGO | S_IWUSR,	\
 	},					\
 	.mask = ML_##_name,			\

fs/partitions/check.c

@@ -397,7 +397,6 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
 		static struct attribute addpartattr = {
 			.name = "whole_disk",
 			.mode = S_IRUSR | S_IRGRP | S_IROTH,
-			.owner = THIS_MODULE,
 		};
 
 		sysfs_create_file(&p->kobj, &addpartattr);

fs/sysfs/bin.c

@@ -20,29 +20,41 @@
 
 #include "sysfs.h"
 
+struct bin_buffer {
+	struct mutex	mutex;
+	void		*buffer;
+	int		mmapped;
+};
+
 static int
 fill_read(struct dentry *dentry, char *buffer, loff_t off, size_t count)
 {
-	struct bin_attribute * attr = to_bin_attr(dentry);
-	struct kobject * kobj = to_kobj(dentry->d_parent);
+	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
+	struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
+	struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+	int rc;
+
+	/* need attr_sd for attr, its parent for kobj */
+	if (!sysfs_get_active_two(attr_sd))
+		return -ENODEV;
 
-	if (!attr->read)
-		return -EIO;
+	rc = -EIO;
+	if (attr->read)
+		rc = attr->read(kobj, attr, buffer, off, count);
 
-	return attr->read(kobj, buffer, off, count);
+	sysfs_put_active_two(attr_sd);
+
+	return rc;
 }
 
 static ssize_t
-read(struct file * file, char __user * userbuf, size_t count, loff_t * off)
+read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 {
-	char *buffer = file->private_data;
+	struct bin_buffer *bb = file->private_data;
 	struct dentry *dentry = file->f_path.dentry;
 	int size = dentry->d_inode->i_size;
 	loff_t offs = *off;
-	int ret;
-
-	if (count > PAGE_SIZE)
-		count = PAGE_SIZE;
+	int count = min_t(size_t, bytes, PAGE_SIZE);
 
 	if (size) {
 		if (offs > size)
@@ -51,43 +63,56 @@ read(struct file * file, char __user * userbuf, size_t count, loff_t * off)
 			count = size - offs;
 	}
 
-	ret = fill_read(dentry, buffer, offs, count);
-	if (ret < 0) 
-		return ret;
-	count = ret;
+	mutex_lock(&bb->mutex);
+
+	count = fill_read(dentry, bb->buffer, offs, count);
+	if (count < 0)
+		goto out_unlock;
 
-	if (copy_to_user(userbuf, buffer, count))
-		return -EFAULT;
+	if (copy_to_user(userbuf, bb->buffer, count)) {
+		count = -EFAULT;
+		goto out_unlock;
+	}
 
-	pr_debug("offs = %lld, *off = %lld, count = %zd\n", offs, *off, count);
+	pr_debug("offs = %lld, *off = %lld, count = %d\n", offs, *off, count);
 
 	*off = offs + count;
 
+ out_unlock:
+	mutex_unlock(&bb->mutex);
 	return count;
 }
 
 static int
 flush_write(struct dentry *dentry, char *buffer, loff_t offset, size_t count)
 {
-	struct bin_attribute *attr = to_bin_attr(dentry);
-	struct kobject *kobj = to_kobj(dentry->d_parent);
+	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
+	struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
+	struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+	int rc;
+
+	/* need attr_sd for attr, its parent for kobj */
+	if (!sysfs_get_active_two(attr_sd))
+		return -ENODEV;
+
+	rc = -EIO;
+	if (attr->write)
+		rc = attr->write(kobj, attr, buffer, offset, count);
 
-	if (!attr->write)
-		return -EIO;
+	sysfs_put_active_two(attr_sd);
 
-	return attr->write(kobj, buffer, offset, count);
+	return rc;
 }
 
-static ssize_t write(struct file * file, const char __user * userbuf,
-		     size_t count, loff_t * off)
+static ssize_t write(struct file *file, const char __user *userbuf,
+		     size_t bytes, loff_t *off)
 {
-	char *buffer = file->private_data;
+	struct bin_buffer *bb = file->private_data;
 	struct dentry *dentry = file->f_path.dentry;
 	int size = dentry->d_inode->i_size;
 	loff_t offs = *off;
+	int count = min_t(size_t, bytes, PAGE_SIZE);
 
-	if (count > PAGE_SIZE)
-		count = PAGE_SIZE;
 	if (size) {
 		if (offs > size)
 			return 0;
@@ -95,72 +120,100 @@ static ssize_t write(struct file * file, const char __user * userbuf,
 			count = size - offs;
 	}
 
-	if (copy_from_user(buffer, userbuf, count))
-		return -EFAULT;
+	mutex_lock(&bb->mutex);
 
-	count = flush_write(dentry, buffer, offs, count);
+	if (copy_from_user(bb->buffer, userbuf, count)) {
+		count = -EFAULT;
+		goto out_unlock;
+	}
+
+	count = flush_write(dentry, bb->buffer, offs, count);
 	if (count > 0)
 		*off = offs + count;
+
+ out_unlock:
+	mutex_unlock(&bb->mutex);
 	return count;
 }
 
 static int mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct dentry *dentry = file->f_path.dentry;
-	struct bin_attribute *attr = to_bin_attr(dentry);
-	struct kobject *kobj = to_kobj(dentry->d_parent);
+	struct bin_buffer *bb = file->private_data;
+	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
+	struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
+	struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+	int rc;
+
+	mutex_lock(&bb->mutex);
+
+	/* need attr_sd for attr, its parent for kobj */
+	if (!sysfs_get_active_two(attr_sd))
+		return -ENODEV;
 
-	if (!attr->mmap)
-		return -EINVAL;
+	rc = -EINVAL;
+	if (attr->mmap)
+		rc = attr->mmap(kobj, attr, vma);
 
-	return attr->mmap(kobj, attr, vma);
+	if (rc == 0 && !bb->mmapped)
+		bb->mmapped = 1;
+	else
+		sysfs_put_active_two(attr_sd);
+
+	mutex_unlock(&bb->mutex);
+
+	return rc;
 }
 
 static int open(struct inode * inode, struct file * file)
 {
-	struct kobject *kobj = sysfs_get_kobject(file->f_path.dentry->d_parent);
-	struct bin_attribute * attr = to_bin_attr(file->f_path.dentry);
-	int error = -EINVAL;
-
-	if (!kobj || !attr)
-		goto Done;
+	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
+	struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
+	struct bin_buffer *bb = NULL;
+	int error;
 
-	/* Grab the module reference for this attribute if we have one */
-	error = -ENODEV;
-	if (!try_module_get(attr->attr.owner)) 
-		goto Done;
+	/* need attr_sd for attr */
+	if (!sysfs_get_active(attr_sd))
+		return -ENODEV;
 
 	error = -EACCES;
 	if ((file->f_mode & FMODE_WRITE) && !(attr->write || attr->mmap))
-		goto Error;
+		goto err_out;
 	if ((file->f_mode & FMODE_READ) && !(attr->read || attr->mmap))
-		goto Error;
+		goto err_out;
 
 	error = -ENOMEM;
-	file->private_data = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!file->private_data)
-		goto Error;
-
-	error = 0;
-    goto Done;
-
- Error:
-	module_put(attr->attr.owner);
- Done:
-	if (error)
-		kobject_put(kobj);
+	bb = kzalloc(sizeof(*bb), GFP_KERNEL);
+	if (!bb)
+		goto err_out;
+
+	bb->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!bb->buffer)
+		goto err_out;
+
+	mutex_init(&bb->mutex);
+	file->private_data = bb;
+
+	/* open succeeded, put active reference and pin attr_sd */
+	sysfs_put_active(attr_sd);
+	sysfs_get(attr_sd);
+	return 0;
+
+ err_out:
+	sysfs_put_active(attr_sd);
+	kfree(bb);
 	return error;
 }
 
 static int release(struct inode * inode, struct file * file)
 {
-	struct kobject * kobj = to_kobj(file->f_path.dentry->d_parent);
-	struct bin_attribute * attr = to_bin_attr(file->f_path.dentry);
-	u8 * buffer = file->private_data;
-
-	kobject_put(kobj);
-	module_put(attr->attr.owner);
-	kfree(buffer);
+	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
+	struct bin_buffer *bb = file->private_data;
+
+	if (bb->mmapped)
+		sysfs_put_active_two(attr_sd);
+	sysfs_put(attr_sd);
+	kfree(bb->buffer);
+	kfree(bb);
 	return 0;
 }
 
@@ -181,9 +234,9 @@ const struct file_operations bin_fops = {
 
 int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
 {
-	BUG_ON(!kobj || !kobj->dentry || !attr);
+	BUG_ON(!kobj || !kobj->sd || !attr);
 
-	return sysfs_add_file(kobj->dentry, &attr->attr, SYSFS_KOBJ_BIN_ATTR);
+	return sysfs_add_file(kobj->sd, &attr->attr, SYSFS_KOBJ_BIN_ATTR);
 }
 
 
@@ -195,7 +248,7 @@ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
 
 void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr)
 {
-	if (sysfs_hash_and_remove(kobj->dentry, attr->attr.name) < 0) {
+	if (sysfs_hash_and_remove(kobj->sd, attr->attr.name) < 0) {
 		printk(KERN_ERR "%s: "
 			"bad dentry or inode or no such file: \"%s\"\n",
 			__FUNCTION__, attr->attr.name);

fs/sysfs/group.c

@@ -18,26 +18,25 @@
 #include "sysfs.h"
 
 
-static void remove_files(struct dentry * dir, 
-			 const struct attribute_group * grp)
+static void remove_files(struct sysfs_dirent *dir_sd,
+			 const struct attribute_group *grp)
 {
 	struct attribute *const* attr;
 
 	for (attr = grp->attrs; *attr; attr++)
-		sysfs_hash_and_remove(dir,(*attr)->name);
+		sysfs_hash_and_remove(dir_sd, (*attr)->name);
 }
 
-static int create_files(struct dentry * dir,
-			const struct attribute_group * grp)
+static int create_files(struct sysfs_dirent *dir_sd,
+			const struct attribute_group *grp)
 {
 	struct attribute *const* attr;
 	int error = 0;
 
-	for (attr = grp->attrs; *attr && !error; attr++) {
-		error = sysfs_add_file(dir, *attr, SYSFS_KOBJ_ATTR);
-	}
+	for (attr = grp->attrs; *attr && !error; attr++)
+		error = sysfs_add_file(dir_sd, *attr, SYSFS_KOBJ_ATTR);
 	if (error)
-		remove_files(dir,grp);
+		remove_files(dir_sd, grp);
 	return error;
 }
 
@@ -45,44 +44,44 @@ static int create_files(struct dentry * dir,
 int sysfs_create_group(struct kobject * kobj, 
 		       const struct attribute_group * grp)
 {
-	struct dentry * dir;
+	struct sysfs_dirent *sd;
 	int error;
 
-	BUG_ON(!kobj || !kobj->dentry);
+	BUG_ON(!kobj || !kobj->sd);
 
 	if (grp->name) {
-		error = sysfs_create_subdir(kobj,grp->name,&dir);
+		error = sysfs_create_subdir(kobj, grp->name, &sd);
 		if (error)
 			return error;
 	} else
-		dir = kobj->dentry;
-	dir = dget(dir);
-	if ((error = create_files(dir,grp))) {
+		sd = kobj->sd;
+	sysfs_get(sd);
+	error = create_files(sd, grp);
+	if (error) {
 		if (grp->name)
-			sysfs_remove_subdir(dir);
+			sysfs_remove_subdir(sd);
 	}
-	dput(dir);
+	sysfs_put(sd);
 	return error;
 }
 
 void sysfs_remove_group(struct kobject * kobj, 
 			const struct attribute_group * grp)
 {
-	struct dentry * dir;
+	struct sysfs_dirent *dir_sd = kobj->sd;
+	struct sysfs_dirent *sd;
 
 	if (grp->name) {
-		dir = lookup_one_len_kern(grp->name, kobj->dentry,
-				strlen(grp->name));
-		BUG_ON(IS_ERR(dir));
-	}
-	else
-		dir = dget(kobj->dentry);
+		sd = sysfs_get_dirent(dir_sd, grp->name);
+		BUG_ON(!sd);
+	} else
+		sd = sysfs_get(dir_sd);
 
-	remove_files(dir,grp);
+	remove_files(sd, grp);
 	if (grp->name)
-		sysfs_remove_subdir(dir);
-	/* release the ref. taken in this routine */
-	dput(dir);
+		sysfs_remove_subdir(sd);
+
+	sysfs_put(sd);
 }
 
 

fs/sysfs/inode.c

@@ -133,187 +133,94 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
  */
 static struct lock_class_key sysfs_inode_imutex_key;
 
-struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent * sd)
+void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
 {
-	struct inode * inode = new_inode(sysfs_sb);
-	if (inode) {
-		inode->i_blocks = 0;
-		inode->i_mapping->a_ops = &sysfs_aops;
-		inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
-		inode->i_op = &sysfs_inode_operations;
-		inode->i_ino = sd->s_ino;
-		lockdep_set_class(&inode->i_mutex, &sysfs_inode_imutex_key);
-
-		if (sd->s_iattr) {
-			/* sysfs_dirent has non-default attributes
-			 * get them for the new inode from persistent copy
-			 * in sysfs_dirent
-			 */
-			set_inode_attr(inode, sd->s_iattr);
-		} else
-			set_default_inode_attr(inode, mode);
-	}
-	return inode;
-}
-
-int sysfs_create(struct dentry * dentry, int mode, int (*init)(struct inode *))
-{
-	int error = 0;
-	struct inode * inode = NULL;
-	if (dentry) {
-		if (!dentry->d_inode) {
-			struct sysfs_dirent * sd = dentry->d_fsdata;
-			if ((inode = sysfs_new_inode(mode, sd))) {
-				if (dentry->d_parent && dentry->d_parent->d_inode) {
-					struct inode *p_inode = dentry->d_parent->d_inode;
-					p_inode->i_mtime = p_inode->i_ctime = CURRENT_TIME;
-				}
-				goto Proceed;
-			}
-			else 
-				error = -ENOMEM;
-		} else
-			error = -EEXIST;
-	} else 
-		error = -ENOENT;
-	goto Done;
-
- Proceed:
-	if (init)
-		error = init(inode);
-	if (!error) {
-		d_instantiate(dentry, inode);
-		if (S_ISDIR(mode))
-			dget(dentry);  /* pin only directory dentry in core */
+	inode->i_blocks = 0;
+	inode->i_mapping->a_ops = &sysfs_aops;
+	inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
+	inode->i_op = &sysfs_inode_operations;
+	inode->i_ino = sd->s_ino;
+	lockdep_set_class(&inode->i_mutex, &sysfs_inode_imutex_key);
+
+	if (sd->s_iattr) {
+		/* sysfs_dirent has non-default attributes
+		 * get them for the new inode from persistent copy
+		 * in sysfs_dirent
+		 */
+		set_inode_attr(inode, sd->s_iattr);
 	} else
-		iput(inode);
- Done:
-	return error;
+		set_default_inode_attr(inode, sd->s_mode);
 }
 
-/*
- * Get the name for corresponding element represented by the given sysfs_dirent
+/**
+ *	sysfs_get_inode - get inode for sysfs_dirent
+ *	@sd: sysfs_dirent to allocate inode for
+ *
+ *	Get inode for @sd.  If such inode doesn't exist, a new inode
+ *	is allocated and basics are initialized.  New inode is
+ *	returned locked.
+ *
+ *	LOCKING:
+ *	Kernel thread context (may sleep).
+ *
+ *	RETURNS:
+ *	Pointer to allocated inode on success, NULL on failure.
  */
-const unsigned char * sysfs_get_name(struct sysfs_dirent *sd)
+struct inode * sysfs_get_inode(struct sysfs_dirent *sd)
 {
-	struct attribute * attr;
-	struct bin_attribute * bin_attr;
-	struct sysfs_symlink  * sl;
-
-	BUG_ON(!sd || !sd->s_element);
-
-	switch (sd->s_type) {
-		case SYSFS_DIR:
-			/* Always have a dentry so use that */
-			return sd->s_dentry->d_name.name;
-
-		case SYSFS_KOBJ_ATTR:
-			attr = sd->s_element;
-			return attr->name;
-
-		case SYSFS_KOBJ_BIN_ATTR:
-			bin_attr = sd->s_element;
-			return bin_attr->attr.name;
+	struct inode *inode;
 
-		case SYSFS_KOBJ_LINK:
-			sl = sd->s_element;
-			return sl->link_name;
-	}
-	return NULL;
-}
+	inode = iget_locked(sysfs_sb, sd->s_ino);
+	if (inode && (inode->i_state & I_NEW))
+		sysfs_init_inode(sd, inode);
 
-static inline void orphan_all_buffers(struct inode *node)
-{
-	struct sysfs_buffer_collection *set;
-	struct sysfs_buffer *buf;
-
-	mutex_lock_nested(&node->i_mutex, I_MUTEX_CHILD);
-	set = node->i_private;
-	if (set) {
-		list_for_each_entry(buf, &set->associates, associates) {
-			down(&buf->sem);
-			buf->orphaned = 1;
-			up(&buf->sem);
-		}
-	}
-	mutex_unlock(&node->i_mutex);
+	return inode;
 }
 
-
-/*
- * Unhashes the dentry corresponding to given sysfs_dirent
- * Called with parent inode's i_mutex held.
+/**
+ *	sysfs_instantiate - instantiate dentry
+ *	@dentry: dentry to be instantiated
+ *	@inode: inode associated with @sd
+ *
+ *	Unlock @inode if locked and instantiate @dentry with @inode.
+ *
+ *	LOCKING:
+ *	None.
  */
-void sysfs_drop_dentry(struct sysfs_dirent * sd, struct dentry * parent)
+void sysfs_instantiate(struct dentry *dentry, struct inode *inode)
 {
-	struct dentry *dentry = NULL;
-	struct inode *inode;
+	BUG_ON(!dentry || dentry->d_inode);
 
-	/* We're not holding a reference to ->s_dentry dentry but the
-	 * field will stay valid as long as sysfs_lock is held.
-	 */
-	spin_lock(&sysfs_lock);
-	spin_lock(&dcache_lock);
-
-	/* dget dentry if it's still alive */
-	if (sd->s_dentry && sd->s_dentry->d_inode)
-		dentry = dget_locked(sd->s_dentry);
-
-	spin_unlock(&dcache_lock);
-	spin_unlock(&sysfs_lock);
-
-	/* drop dentry */
-	if (dentry) {
-		spin_lock(&dcache_lock);
-		spin_lock(&dentry->d_lock);
-		if (!d_unhashed(dentry) && dentry->d_inode) {
-			inode = dentry->d_inode;
-			spin_lock(&inode->i_lock);
-			__iget(inode);
-			spin_unlock(&inode->i_lock);
-			dget_locked(dentry);
-			__d_drop(dentry);
-			spin_unlock(&dentry->d_lock);
-			spin_unlock(&dcache_lock);
-			simple_unlink(parent->d_inode, dentry);
-			orphan_all_buffers(inode);
-			iput(inode);
-		} else {
-			spin_unlock(&dentry->d_lock);
-			spin_unlock(&dcache_lock);
-		}
+	if (inode->i_state & I_NEW)
+		unlock_new_inode(inode);
 
-		dput(dentry);
-	}
+	d_instantiate(dentry, inode);
 }
 
-int sysfs_hash_and_remove(struct dentry * dir, const char * name)
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name)
 {
-	struct sysfs_dirent * sd;
-	struct sysfs_dirent * parent_sd;
-	int found = 0;
+	struct sysfs_addrm_cxt acxt;
+	struct sysfs_dirent **pos, *sd;
 
-	if (!dir)
+	if (!dir_sd)
 		return -ENOENT;
 
-	if (dir->d_inode == NULL)
-		/* no inode means this hasn't been made visible yet */
-		return -ENOENT;
+	sysfs_addrm_start(&acxt, dir_sd);
+
+	for (pos = &dir_sd->s_children; *pos; pos = &(*pos)->s_sibling) {
+		sd = *pos;
 
-	parent_sd = dir->d_fsdata;
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
-	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
-		if (!sd->s_element)
+		if (!sysfs_type(sd))
 			continue;
-		if (!strcmp(sysfs_get_name(sd), name)) {
-			list_del_init(&sd->s_sibling);
-			sysfs_drop_dentry(sd, dir);
-			sysfs_put(sd);
-			found = 1;
+		if (!strcmp(sd->s_name, name)) {
+			*pos = sd->s_sibling;
+			sd->s_sibling = NULL;
+			sysfs_remove_one(&acxt, sd);
 			break;
 		}
 	}
-	mutex_unlock(&dir->d_inode->i_mutex);
 
-	return found ? 0 : -ENOENT;
+	if (sysfs_addrm_finish(&acxt))
+		return 0;
+	return -ENOENT;
 }

include/linux/debugfs.h

@@ -38,6 +38,9 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
 
 void debugfs_remove(struct dentry *dentry);
 
+struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+                struct dentry *new_dir, const char *new_name);
+
 struct dentry *debugfs_create_u8(const char *name, mode_t mode,
 				 struct dentry *parent, u8 *value);
 struct dentry *debugfs_create_u16(const char *name, mode_t mode,
@@ -85,6 +88,12 @@ static inline struct dentry *debugfs_create_symlink(const char *name,
 static inline void debugfs_remove(struct dentry *dentry)
 { }
 
+static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+                struct dentry *new_dir, char *new_name)
+{
+	return ERR_PTR(-ENODEV);
+}
+
 static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
 					       struct dentry *parent,
 					       u8 *value)

include/linux/device.h

@@ -238,7 +238,6 @@ extern int __must_check class_device_create_file(struct class_device *,
  * @devt: for internal use by the driver core only.
  * @node: for internal use by the driver core only.
  * @kobj: for internal use by the driver core only.
- * @devt_attr: for internal use by the driver core only.
  * @groups: optional additional groups to be created
  * @dev: if set, a symlink to the struct device is created in the sysfs
  * directory for this struct class device.
@@ -263,8 +262,6 @@ struct class_device {
 	struct kobject		kobj;
 	struct class		* class;	/* required */
 	dev_t			devt;		/* dev_t, creates the sysfs "dev" */
-	struct class_device_attribute *devt_attr;
-	struct class_device_attribute uevent_attr;
 	struct device		* dev;		/* not necessary, but nice to have */
 	void			* class_data;	/* class-specific data */
 	struct class_device	*parent;	/* parent of this child device, if there is one */
@@ -419,8 +416,6 @@ struct device {
 	struct device_type	*type;
 	unsigned		is_registered:1;
 	unsigned		uevent_suppress:1;
-	struct device_attribute uevent_attr;
-	struct device_attribute *devt_attr;
 
 	struct semaphore	sem;	/* semaphore to synchronize calls to
 					 * its driver.