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

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (79 commits)
  arm: bus_id -> dev_name() and dev_set_name() conversions
  sparc64: fix up bus_id changes in sparc core code
  3c59x: handle pci_name() being const
  MTD: handle pci_name() being const
  HP iLO driver
  sysdev: Convert the x86 mce tolerant sysdev attribute to generic attribute
  sysdev: Add utility functions for simple int/ulong variable sysdev attributes
  sysdev: Pass the attribute to the low level sysdev show/store function
  driver core: Suppress sysfs warnings for device_rename().
  kobject: Transmit return value of call_usermodehelper() to caller
  sysfs-rules.txt: reword API stability statement
  debugfs: Implement debugfs_remove_recursive()
  HOWTO: change email addresses of James in HOWTO
  always enable FW_LOADER unless EMBEDDED=y
  uio-howto.tmpl: use unique output names
  uio-howto.tmpl: use standard copyright/legal markings
  sysfs: don't call notify_change
  sysdev: fix debugging statements in registration code.
  kobject: should use kobject_put() in kset-example
  kobject: reorder kobject to save space on 64 bit builds
  ...

Documentation/ABI/testing/sysfs-dev

@@ -0,0 +1,20 @@
+What:		/sys/dev
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Dan Williams <dan.j.williams@intel.com>
+Description:	The /sys/dev tree provides a method to look up the sysfs
+		path for a device using the information returned from
+		stat(2).  There are two directories, 'block' and 'char',
+		beneath /sys/dev containing symbolic links with names of
+		the form "<major>:<minor>".  These links point to the
+		corresponding sysfs path for the given device.
+
+		Example:
+		$ readlink /sys/dev/block/8:32
+		../../block/sdc
+
+		Entries in /sys/dev/char and /sys/dev/block will be
+		dynamically created and destroyed as devices enter and
+		leave the system.
+
+Users:		mdadm <linux-raid@vger.kernel.org>

Documentation/DocBook/uio-howto.tmpl

@@ -21,6 +21,18 @@
     </affiliation>
 </author>
 
+<copyright>
+	<year>2006-2008</year>
+	<holder>Hans-Jürgen Koch.</holder>
+</copyright>
+
+<legalnotice>
+<para>
+This documentation is Free Software licensed under the terms of the
+GPL version 2.
+</para>
+</legalnotice>
+
 <pubdate>2006-12-11</pubdate>
 
 <abstract>
@@ -29,6 +41,12 @@
 </abstract>
 
 <revhistory>
+	<revision>
+	<revnumber>0.5</revnumber>
+	<date>2008-05-22</date>
+	<authorinitials>hjk</authorinitials>
+	<revremark>Added description of write() function.</revremark>
+	</revision>
 	<revision>
 	<revnumber>0.4</revnumber>
 	<date>2007-11-26</date>
@@ -57,20 +75,9 @@
 </bookinfo>
 
 <chapter id="aboutthisdoc">
-<?dbhtml filename="about.html"?>
+<?dbhtml filename="aboutthis.html"?>
 <title>About this document</title>
 
-<sect1 id="copyright">
-<?dbhtml filename="copyright.html"?>
-<title>Copyright and License</title>
-<para>
-      Copyright (c) 2006 by Hans-Jürgen Koch.</para>
-<para>
-This documentation is Free Software licensed under the terms of the
-GPL version 2.
-</para>
-</sect1>
-
 <sect1 id="translations">
 <?dbhtml filename="translations.html"?>
 <title>Translations</title>
@@ -189,6 +196,30 @@ interested in translating it, please email me
 	represents the total interrupt count. You can use this number
 	to figure out if you missed some interrupts.
 	</para>
+	<para>
+	For some hardware that has more than one interrupt source internally,
+	but not separate IRQ mask and status registers, there might be
+	situations where userspace cannot determine what the interrupt source
+	was if the kernel handler disables them by writing to the chip's IRQ
+	register. In such a case, the kernel has to disable the IRQ completely
+	to leave the chip's register untouched. Now the userspace part can
+	determine the cause of the interrupt, but it cannot re-enable
+	interrupts. Another cornercase is chips where re-enabling interrupts
+	is a read-modify-write operation to a combined IRQ status/acknowledge
+	register. This would be racy if a new interrupt occurred
+	simultaneously.
+	</para>
+	<para>
+	To address these problems, UIO also implements a write() function. It
+	is normally not used and can be ignored for hardware that has only a
+	single interrupt source or has separate IRQ mask and status registers.
+	If you need it, however, a write to <filename>/dev/uioX</filename>
+	will call the <function>irqcontrol()</function> function implemented
+	by the driver. You have to write a 32-bit value that is usually either
+	0 or 1 to disable or enable interrupts. If a driver does not implement
+	<function>irqcontrol()</function>, <function>write()</function> will
+	return with <varname>-ENOSYS</varname>.
+	</para>
 
 	<para>
 	To handle interrupts properly, your custom kernel module can
@@ -362,6 +393,14 @@ device is actually used.
 <function>open()</function>, you will probably also want a custom
 <function>release()</function> function.
 </para></listitem>
+
+<listitem><para>
+<varname>int (*irqcontrol)(struct uio_info *info, s32 irq_on)
+</varname>: Optional. If you need to be able to enable or disable
+interrupts from userspace by writing to <filename>/dev/uioX</filename>,
+you can implement this function. The parameter <varname>irq_on</varname>
+will be 0 to disable interrupts and 1 to enable them.
+</para></listitem>
 </itemizedlist>
 
 <para>

Documentation/HOWTO

@@ -358,7 +358,7 @@ Here is a list of some of the different kernel trees available:
     - pcmcia, Dominik Brodowski <linux@dominikbrodowski.net>
 	git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
 
-    - SCSI, James Bottomley <James.Bottomley@SteelEye.com>
+    - SCSI, James Bottomley <James.Bottomley@hansenpartnership.com>
 	git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
 
     - x86, Ingo Molnar <mingo@elte.hu>

Documentation/filesystems/sysfs.txt

@@ -248,6 +248,7 @@ The top level sysfs directory looks like:
 block/
 bus/
 class/
+dev/
 devices/
 firmware/
 net/
@@ -274,6 +275,11 @@ fs/ contains a directory for some filesystems.  Currently each
 filesystem wanting to export attributes must create its own hierarchy
 below fs/ (see ./fuse.txt for an example).
 
+dev/ contains two directories char/ and block/. Inside these two
+directories there are symlinks named <major>:<minor>.  These symlinks
+point to the sysfs directory for the given device.  /sys/dev provides a
+quick way to lookup the sysfs interface for a device from the result of
+a stat(2) operation.
 
 More information can driver-model specific features can be found in
 Documentation/driver-model/. 

Documentation/sysfs-rules.txt

@@ -3,9 +3,8 @@ 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 cannot provide a stable interface either;
-it may always change along with internal kernel changes.
+internal API. Therefore, there are aspects of the sysfs interface that
+may not be stable across kernel releases.
 
 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

arch/arm/common/dmabounce.c

@@ -554,9 +554,8 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
 
 	device_info = kmalloc(sizeof(struct dmabounce_device_info), GFP_ATOMIC);
 	if (!device_info) {
-		printk(KERN_ERR
-			"Could not allocated dmabounce_device_info for %s",
-			dev->bus_id);
+		dev_err(dev,
+			"Could not allocated dmabounce_device_info\n");
 		return -ENOMEM;
 	}
 
@@ -594,8 +593,7 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
 
 	dev->archdata.dmabounce = device_info;
 
-	printk(KERN_INFO "dmabounce: registered device %s on %s bus\n",
-		dev->bus_id, dev->bus->name);
+	dev_info(dev, "dmabounce: registered device\n");
 
 	return 0;
 
@@ -614,16 +612,15 @@ dmabounce_unregister_dev(struct device *dev)
 	dev->archdata.dmabounce = NULL;
 
 	if (!device_info) {
-		printk(KERN_WARNING
-			"%s: Never registered with dmabounce but attempting" \
-			"to unregister!\n", dev->bus_id);
+		dev_warn(dev,
+			 "Never registered with dmabounce but attempting"
+			 "to unregister!\n");
 		return;
 	}
 
 	if (!list_empty(&device_info->safe_buffers)) {
-		printk(KERN_ERR
-			"%s: Removing from dmabounce with pending buffers!\n",
-			dev->bus_id);
+		dev_err(dev,
+			"Removing from dmabounce with pending buffers!\n");
 		BUG();
 	}
 
@@ -639,8 +636,7 @@ dmabounce_unregister_dev(struct device *dev)
 
 	kfree(device_info);
 
-	printk(KERN_INFO "dmabounce: device %s on %s bus unregistered\n",
-		dev->bus_id, dev->bus->name);
+	dev_info(dev, "dmabounce: device unregistered\n");
 }
 
 

arch/arm/common/locomo.c

@@ -543,7 +543,6 @@ locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
 		goto out;
 	}
 
-	strncpy(dev->dev.bus_id, info->name, sizeof(dev->dev.bus_id));
 	/*
 	 * If the parent device has a DMA mask associated with it,
 	 * propagate it down to the children.
@@ -553,6 +552,7 @@ locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
 		dev->dev.dma_mask = &dev->dma_mask;
 	}
 
+	dev_set_name(&dev->dev, "%s", info->name);
 	dev->devid	 = info->devid;
 	dev->dev.parent  = lchip->dev;
 	dev->dev.bus     = &locomo_bus_type;

arch/arm/common/sa1111.c

@@ -550,9 +550,7 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 		goto out;
 	}
 
-	snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
-		 "%4.4lx", info->offset);
-
+	dev_set_name(&dev->dev, "%4.4lx", info->offset);
 	dev->devid	 = info->devid;
 	dev->dev.parent  = sachip->dev;
 	dev->dev.bus     = &sa1111_bus_type;
@@ -560,7 +558,7 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 	dev->dev.coherent_dma_mask = sachip->dev->coherent_dma_mask;
 	dev->res.start   = sachip->phys + info->offset;
 	dev->res.end     = dev->res.start + 511;
-	dev->res.name    = dev->dev.bus_id;
+	dev->res.name    = dev_name(&dev->dev);
 	dev->res.flags   = IORESOURCE_MEM;
 	dev->mapbase     = sachip->base + info->offset;
 	dev->skpcr_mask  = info->skpcr_mask;
@@ -570,6 +568,7 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 	if (ret) {
 		printk("SA1111: failed to allocate resource for %s\n",
 			dev->res.name);
+		dev_set_name(&dev->dev, NULL);
 		kfree(dev);
 		goto out;
 	}
@@ -593,7 +592,8 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 		if (dev->dma_mask != 0xffffffffUL) {
 			ret = dmabounce_register_dev(&dev->dev, 1024, 4096);
 			if (ret) {
-				printk("SA1111: Failed to register %s with dmabounce", dev->dev.bus_id);
+				dev_err(&dev->dev, "SA1111: Failed to register"
+					" with dmabounce\n");
 				device_unregister(&dev->dev);
 			}
 		}

arch/arm/common/scoop.c

@@ -247,7 +247,7 @@ static int __devinit scoop_probe(struct platform_device *pdev)
 	devptr->gpio.base = -1;
 
 	if (inf->gpio_base != 0) {
-		devptr->gpio.label = pdev->dev.bus_id;
+		devptr->gpio.label = dev_name(&pdev->dev);
 		devptr->gpio.base = inf->gpio_base;
 		devptr->gpio.ngpio = 12; /* PA11 = 0, PA12 = 1, etc. up to PA22 = 11 */
 		devptr->gpio.set = scoop_gpio_set;

arch/arm/kernel/ecard.c

@@ -783,7 +783,7 @@ static void ecard_proc_init(void)
 
 #define ec_set_resource(ec,nr,st,sz)				\
 	do {							\
-		(ec)->resource[nr].name = ec->dev.bus_id;	\
+		(ec)->resource[nr].name = dev_name(&ec->dev);	\
 		(ec)->resource[nr].start = st;			\
 		(ec)->resource[nr].end = (st) + (sz) - 1;	\
 		(ec)->resource[nr].flags = IORESOURCE_MEM;	\
@@ -853,8 +853,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
 	for (i = 0; i < ECARD_NUM_RESOURCES; i++) {
 		if (ec->resource[i].flags &&
 		    request_resource(&iomem_resource, &ec->resource[i])) {
-			printk(KERN_ERR "%s: resource(s) not available\n",
-				ec->dev.bus_id);
+			dev_err(&ec->dev, "resource(s) not available\n");
 			ec->resource[i].end -= ec->resource[i].start;
 			ec->resource[i].start = 0;
 			ec->resource[i].flags = 0;

arch/arm/kernel/time.c

@@ -130,7 +130,9 @@ static const struct leds_evt_name evt_names[] = {
 	{ "red",   led_red_on,   led_red_off   },
 };
 
-static ssize_t leds_store(struct sys_device *dev, const char *buf, size_t size)
+static ssize_t leds_store(struct sys_device *dev,
+			struct sysdev_attribute *attr,
+			const char *buf, size_t size)
 {
 	int ret = -EINVAL, len = strcspn(buf, " ");
 

arch/arm/mach-integrator/impd1.c

@@ -393,9 +393,7 @@ static int impd1_probe(struct lm_device *dev)
 		if (!d)
 			continue;
 
-		snprintf(d->dev.bus_id, sizeof(d->dev.bus_id),
-			 "lm%x:%5.5lx", dev->id, idev->offset >> 12);
-
+		dev_set_name(&d->dev, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
 		d->dev.parent	= &dev->dev;
 		d->res.start	= dev->resource.start + idev->offset;
 		d->res.end	= d->res.start + SZ_4K - 1;
@@ -407,8 +405,7 @@ static int impd1_probe(struct lm_device *dev)
 
 		ret = amba_device_register(d, &dev->resource);
 		if (ret) {
-			printk("unable to register device %s: %d\n",
-				d->dev.bus_id, ret);
+			dev_err(&d->dev, "unable to register device: %d\n");
 			kfree(d);
 		}
 	}

arch/arm/mach-integrator/lm.c

@@ -81,8 +81,10 @@ int lm_device_register(struct lm_device *dev)
 	dev->dev.release = lm_device_release;
 	dev->dev.bus = &lm_bustype;
 
-	snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id), "lm%d", dev->id);
-	dev->resource.name = dev->dev.bus_id;
+	ret = dev_set_name(&dev->dev, "lm%d", dev->id);
+	if (ret)
+		return ret;
+	dev->resource.name = dev_name(&dev->dev);
 
 	ret = request_resource(&iomem_resource, &dev->resource);
 	if (ret == 0) {

arch/arm/plat-omap/mailbox.c

@@ -334,7 +334,7 @@ static int omap_mbox_init(struct omap_mbox *mbox)
 	}
 
 	mbox->dev.class = &omap_mbox_class;
-	strlcpy(mbox->dev.bus_id, mbox->name, KOBJ_NAME_LEN);
+	dev_set_name(&mbox->dev, "%s", mbox->name);
 	dev_set_drvdata(&mbox->dev, mbox);
 
 	ret = device_register(&mbox->dev);

arch/avr32/kernel/cpu.c

@@ -26,14 +26,16 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
  * XXX: If/when a SMP-capable implementation of AVR32 will ever be
  * made, we must make sure that the code executes on the correct CPU.
  */
-static ssize_t show_pc0event(struct sys_device *dev, char *buf)
+static ssize_t show_pc0event(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pccr;
 
 	pccr = sysreg_read(PCCR);
 	return sprintf(buf, "0x%lx\n", (pccr >> 12) & 0x3f);
 }
-static ssize_t store_pc0event(struct sys_device *dev, const char *buf,
+static ssize_t store_pc0event(struct sys_device *dev,
+			struct sysdev_attribute *attr, const char *buf,
 			      size_t count)
 {
 	unsigned long val;
@@ -46,15 +48,17 @@ static ssize_t store_pc0event(struct sys_device *dev, const char *buf,
 	sysreg_write(PCCR, val);
 	return count;
 }
-static ssize_t show_pc0count(struct sys_device *dev, char *buf)
+static ssize_t show_pc0count(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pcnt0;
 
 	pcnt0 = sysreg_read(PCNT0);
 	return sprintf(buf, "%lu\n", pcnt0);
 }
-static ssize_t store_pc0count(struct sys_device *dev, const char *buf,
-			      size_t count)
+static ssize_t store_pc0count(struct sys_device *dev,
+				struct sysdev_attribute *attr,
+				const char *buf, size_t count)
 {
 	unsigned long val;
 	char *endp;
@@ -67,14 +71,16 @@ static ssize_t store_pc0count(struct sys_device *dev, const char *buf,
 	return count;
 }
 
-static ssize_t show_pc1event(struct sys_device *dev, char *buf)
+static ssize_t show_pc1event(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pccr;
 
 	pccr = sysreg_read(PCCR);
 	return sprintf(buf, "0x%lx\n", (pccr >> 18) & 0x3f);
 }
-static ssize_t store_pc1event(struct sys_device *dev, const char *buf,
+static ssize_t store_pc1event(struct sys_device *dev,
+			      struct sysdev_attribute *attr, const char *buf,
 			      size_t count)
 {
 	unsigned long val;
@@ -87,14 +93,16 @@ static ssize_t store_pc1event(struct sys_device *dev, const char *buf,
 	sysreg_write(PCCR, val);
 	return count;
 }
-static ssize_t show_pc1count(struct sys_device *dev, char *buf)
+static ssize_t show_pc1count(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pcnt1;
 
 	pcnt1 = sysreg_read(PCNT1);
 	return sprintf(buf, "%lu\n", pcnt1);
 }
-static ssize_t store_pc1count(struct sys_device *dev, const char *buf,
+static ssize_t store_pc1count(struct sys_device *dev,
+				struct sysdev_attribute *attr, const char *buf,
 			      size_t count)
 {
 	unsigned long val;
@@ -108,14 +116,16 @@ static ssize_t store_pc1count(struct sys_device *dev, const char *buf,
 	return count;
 }
 
-static ssize_t show_pccycles(struct sys_device *dev, char *buf)
+static ssize_t show_pccycles(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pccnt;
 
 	pccnt = sysreg_read(PCCNT);
 	return sprintf(buf, "%lu\n", pccnt);
 }
-static ssize_t store_pccycles(struct sys_device *dev, const char *buf,
+static ssize_t store_pccycles(struct sys_device *dev,
+				struct sysdev_attribute *attr, const char *buf,
 			      size_t count)
 {
 	unsigned long val;
@@ -129,14 +139,16 @@ static ssize_t store_pccycles(struct sys_device *dev, const char *buf,
 	return count;
 }
 
-static ssize_t show_pcenable(struct sys_device *dev, char *buf)
+static ssize_t show_pcenable(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long pccr;
 
 	pccr = sysreg_read(PCCR);
 	return sprintf(buf, "%c\n", (pccr & 1)?'1':'0');
 }
-static ssize_t store_pcenable(struct sys_device *dev, const char *buf,
+static ssize_t store_pcenable(struct sys_device *dev,
+			      struct sysdev_attribute *attr, const char *buf,
 			      size_t count)
 {
 	unsigned long pccr, val;

arch/ia64/kernel/err_inject.c

@@ -55,7 +55,8 @@ static u64 resources[NR_CPUS];
 
 #define show(name) 							\
 static ssize_t 								\
-show_##name(struct sys_device *dev, char *buf)				\
+show_##name(struct sys_device *dev, struct sysdev_attribute *attr,	\
+		char *buf)						\
 {									\
 	u32 cpu=dev->id;						\
 	return sprintf(buf, "%lx\n", name[cpu]);			\
@@ -63,7 +64,8 @@ show_##name(struct sys_device *dev, char *buf)				\
 
 #define store(name)							\
 static ssize_t 								\
-store_##name(struct sys_device *dev, const char *buf, size_t size)	\
+store_##name(struct sys_device *dev, struct sysdev_attribute *attr,	\
+					const char *buf, size_t size)	\
 {									\
 	unsigned int cpu=dev->id;					\
 	name[cpu] = simple_strtoull(buf, NULL, 16);			\
@@ -76,7 +78,8 @@ show(call_start)
  * processor. The cpu number in driver is only used for storing data.
  */
 static ssize_t
-store_call_start(struct sys_device *dev, const char *buf, size_t size)
+store_call_start(struct sys_device *dev, struct sysdev_attribute *attr,
+		const char *buf, size_t size)
 {
 	unsigned int cpu=dev->id;
 	unsigned long call_start = simple_strtoull(buf, NULL, 16);
@@ -124,14 +127,16 @@ show(err_type_info)
 store(err_type_info)
 
 static ssize_t
-show_virtual_to_phys(struct sys_device *dev, char *buf)
+show_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr,
+			char *buf)
 {
 	unsigned int cpu=dev->id;
 	return sprintf(buf, "%lx\n", phys_addr[cpu]);
 }
 
 static ssize_t
-store_virtual_to_phys(struct sys_device *dev, const char *buf, size_t size)
+store_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr,
+			const char *buf, size_t size)
 {
 	unsigned int cpu=dev->id;
 	u64 virt_addr=simple_strtoull(buf, NULL, 16);
@@ -154,7 +159,8 @@ show(err_struct_info)
 store(err_struct_info)
 
 static ssize_t
-show_err_data_buffer(struct sys_device *dev, char *buf)
+show_err_data_buffer(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	unsigned int cpu=dev->id;
 
@@ -165,7 +171,9 @@ show_err_data_buffer(struct sys_device *dev, char *buf)
 }
 
 static ssize_t
-store_err_data_buffer(struct sys_device *dev, const char *buf, size_t size)
+store_err_data_buffer(struct sys_device *dev,
+			struct sysdev_attribute *attr,
+			const char *buf, size_t size)
 {
 	unsigned int cpu=dev->id;
 	int ret;

arch/mips/kernel/rtlx.c

@@ -522,8 +522,8 @@ static int __init rtlx_module_init(void)
 		atomic_set(&channel_wqs[i].in_open, 0);
 		mutex_init(&channel_wqs[i].mutex);
 
-		dev = device_create(mt_class, NULL, MKDEV(major, i),
-		                    "%s%d", module_name, i);
+		dev = device_create_drvdata(mt_class, NULL, MKDEV(major, i),
+					    NULL, "%s%d", module_name, i);
 		if (IS_ERR(dev)) {
 			err = PTR_ERR(dev);
 			goto out_chrdev;

arch/mips/sibyte/common/sb_tbprof.c

@@ -576,7 +576,8 @@ static int __init sbprof_tb_init(void)
 
 	tb_class = tbc;
 
-	dev = device_create(tbc, NULL, MKDEV(SBPROF_TB_MAJOR, 0), "tb");
+	dev = device_create_drvdata(tbc, NULL, MKDEV(SBPROF_TB_MAJOR, 0),
+				    NULL, "tb");
 	if (IS_ERR(dev)) {
 		err = PTR_ERR(dev);
 		goto out_class;

arch/powerpc/kernel/sysfs.c

@@ -28,7 +28,9 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
 /* Time in microseconds we delay before sleeping in the idle loop */
 DEFINE_PER_CPU(unsigned long, smt_snooze_delay) = { 100 };
 
-static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf,
+static ssize_t store_smt_snooze_delay(struct sys_device *dev,
+				      struct sysdev_attribute *attr,
+				      const char *buf,
 				      size_t count)
 {
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev);
@@ -44,7 +46,9 @@ static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf,
 	return count;
 }
 
-static ssize_t show_smt_snooze_delay(struct sys_device *dev, char *buf)
+static ssize_t show_smt_snooze_delay(struct sys_device *dev,
+				     struct sysdev_attribute *attr,
+				     char *buf)
 {
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev);
 
@@ -152,14 +156,17 @@ static unsigned long write_##NAME(unsigned long val) \
 	mtspr(ADDRESS, val); \
 	return 0; \
 } \
-static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
+static ssize_t show_##NAME(struct sys_device *dev, \
+			struct sysdev_attribute *attr, \
+			char *buf) \
 { \
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
 	unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \
 	return sprintf(buf, "%lx\n", val); \
 } \
 static ssize_t __used \
-	store_##NAME(struct sys_device *dev, const char *buf, size_t count) \
+	store_##NAME(struct sys_device *dev, struct sysdev_attribute *attr, \
+			const char *buf, size_t count) \
 { \
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev); \
 	unsigned long val; \

arch/powerpc/platforms/cell/cbe_thermal.c

@@ -97,7 +97,8 @@ static u8 spu_read_register_value(struct sys_device *sysdev, union spe_reg __iom
 	return value.spe[spu->spe_id];
 }
 
-static ssize_t spu_show_temp(struct sys_device *sysdev, char *buf)
+static ssize_t spu_show_temp(struct sys_device *sysdev, struct sysdev_attribute *attr,
+			char *buf)
 {
 	u8 value;
 	struct cbe_pmd_regs __iomem *pmd_regs;
@@ -146,32 +147,38 @@ static ssize_t store_throttle(struct cbe_pmd_regs __iomem *pmd_regs, const char
 	return size;
 }
 
-static ssize_t spu_show_throttle_end(struct sys_device *sysdev, char *buf)
+static ssize_t spu_show_throttle_end(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(get_pmd_regs(sysdev), buf, 0);
 }
 
-static ssize_t spu_show_throttle_begin(struct sys_device *sysdev, char *buf)
+static ssize_t spu_show_throttle_begin(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(get_pmd_regs(sysdev), buf, 8);
 }
 
-static ssize_t spu_show_throttle_full_stop(struct sys_device *sysdev, char *buf)
+static ssize_t spu_show_throttle_full_stop(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(get_pmd_regs(sysdev), buf, 16);
 }
 
-static ssize_t spu_store_throttle_end(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t spu_store_throttle_end(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(get_pmd_regs(sysdev), buf, size, 0);
 }
 
-static ssize_t spu_store_throttle_begin(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t spu_store_throttle_begin(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(get_pmd_regs(sysdev), buf, size, 8);
 }
 
-static ssize_t spu_store_throttle_full_stop(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t spu_store_throttle_full_stop(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(get_pmd_regs(sysdev), buf, size, 16);
 }
@@ -192,43 +199,51 @@ static ssize_t ppe_show_temp(struct sys_device *sysdev, char *buf, int pos)
 
 /* shows the temperature of the DTS on the PPE,
  * located near the linear thermal sensor */
-static ssize_t ppe_show_temp0(struct sys_device *sysdev, char *buf)
+static ssize_t ppe_show_temp0(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return ppe_show_temp(sysdev, buf, 32);
 }
 
 /* shows the temperature of the second DTS on the PPE */
-static ssize_t ppe_show_temp1(struct sys_device *sysdev, char *buf)
+static ssize_t ppe_show_temp1(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return ppe_show_temp(sysdev, buf, 0);
 }
 
-static ssize_t ppe_show_throttle_end(struct sys_device *sysdev, char *buf)
+static ssize_t ppe_show_throttle_end(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 32);
 }
 
-static ssize_t ppe_show_throttle_begin(struct sys_device *sysdev, char *buf)
+static ssize_t ppe_show_throttle_begin(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 40);
 }
 
-static ssize_t ppe_show_throttle_full_stop(struct sys_device *sysdev, char *buf)
+static ssize_t ppe_show_throttle_full_stop(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	return show_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, 48);
 }
 
-static ssize_t ppe_store_throttle_end(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t ppe_store_throttle_end(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 32);
 }
 
-static ssize_t ppe_store_throttle_begin(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t ppe_store_throttle_begin(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 40);
 }
 
-static ssize_t ppe_store_throttle_full_stop(struct sys_device *sysdev, const char *buf, size_t size)
+static ssize_t ppe_store_throttle_full_stop(struct sys_device *sysdev,
+			struct sysdev_attribute *attr, const char *buf, size_t size)
 {
 	return store_throttle(cbe_get_cpu_pmd_regs(sysdev->id), buf, size, 48);
 }

arch/powerpc/platforms/cell/spu_base.c

@@ -703,7 +703,8 @@ static unsigned long long spu_acct_time(struct spu *spu,
 }
 
 
-static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf)
+static ssize_t spu_stat_show(struct sys_device *sysdev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct spu *spu = container_of(sysdev, struct spu, sysdev);
 

arch/powerpc/platforms/chrp/pci.c

@@ -367,7 +367,7 @@ static void chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
 	viaisa = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
 	if (!viaisa)
 		return;
-	printk("Fixing VIA IDE, force legacy mode on '%s'\n", viaide->dev.bus_id);
+	dev_info(&viaide->dev, "Fixing VIA IDE, force legacy mode on\n");
 
 	pci_read_config_byte(viaide, PCI_CLASS_PROG, &progif);
 	pci_write_config_byte(viaide, PCI_CLASS_PROG, progif & ~0x5);

arch/s390/kernel/smp.c

@@ -864,7 +864,8 @@ int setup_profiling_timer(unsigned int multiplier)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_configure_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t count;
 
@@ -874,8 +875,9 @@ static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
 	return count;
 }
 
-static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
-				   size_t count)
+static ssize_t cpu_configure_store(struct sys_device *dev,
+				  struct sysdev_attribute *attr,
+				  const char *buf, size_t count)
 {
 	int cpu = dev->id;
 	int val, rc;
@@ -922,7 +924,8 @@ out:
 static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_polarization_show(struct sys_device *dev,
+				     struct sysdev_attribute *attr, char *buf)
 {
 	int cpu = dev->id;
 	ssize_t count;
@@ -950,7 +953,8 @@ static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(polarization, 0444, cpu_polarization_show, NULL);
 
-static ssize_t show_cpu_address(struct sys_device *dev, char *buf)
+static ssize_t show_cpu_address(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]);
 }
@@ -970,7 +974,8 @@ static struct attribute_group cpu_common_attr_group = {
 	.attrs = cpu_common_attrs,
 };
 
-static ssize_t show_capability(struct sys_device *dev, char *buf)
+static ssize_t show_capability(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned int capability;
 	int rc;
@@ -982,7 +987,8 @@ static ssize_t show_capability(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(capability, 0444, show_capability, NULL);
 
-static ssize_t show_idle_count(struct sys_device *dev, char *buf)
+static ssize_t show_idle_count(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct s390_idle_data *idle;
 	unsigned long long idle_count;
@@ -995,7 +1001,8 @@ static ssize_t show_idle_count(struct sys_device *dev, char *buf)
 }
 static SYSDEV_ATTR(idle_count, 0444, show_idle_count, NULL);
 
-static ssize_t show_idle_time(struct sys_device *dev, char *buf)
+static ssize_t show_idle_time(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct s390_idle_data *idle;
 	unsigned long long new_time;
@@ -1112,7 +1119,9 @@ out:
 	return rc;
 }
 
-static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
+static ssize_t __ref rescan_store(struct sys_device *dev,
+				  struct sysdev_attribute *attr,
+				  const char *buf,
 				  size_t count)
 {
 	int rc;
@@ -1123,7 +1132,9 @@ static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
 static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t dispatching_show(struct sys_device *dev, char *buf)
+static ssize_t dispatching_show(struct sys_device *dev,
+				struct sysdev_attribute *attr,
+				char *buf)
 {
 	ssize_t count;
 
@@ -1133,8 +1144,9 @@ static ssize_t dispatching_show(struct sys_device *dev, char *buf)
 	return count;
 }
 
-static ssize_t dispatching_store(struct sys_device *dev, const char *buf,
-				 size_t count)
+static ssize_t dispatching_store(struct sys_device *dev,
+				 struct sysdev_attribute *attr,
+				 const char *buf, size_t count)
 {
 	int val, rc;
 	char delim;

arch/s390/kernel/time.c

@@ -1100,7 +1100,9 @@ static inline struct etr_aib *etr_aib_from_dev(struct sys_device *dev)
 		return etr_port1_online ? &etr_port1 : NULL;
 }
 
-static ssize_t etr_online_show(struct sys_device *dev, char *buf)
+static ssize_t etr_online_show(struct sys_device *dev,
+				struct sysdev_attribute *attr,
+				char *buf)
 {
 	unsigned int online;
 
@@ -1109,7 +1111,8 @@ static ssize_t etr_online_show(struct sys_device *dev, char *buf)
 }
 
 static ssize_t etr_online_store(struct sys_device *dev,
-			      const char *buf, size_t count)
+				struct sysdev_attribute *attr,
+				const char *buf, size_t count)
 {
 	unsigned int value;
 
@@ -1136,7 +1139,9 @@ static ssize_t etr_online_store(struct sys_device *dev,
 
 static SYSDEV_ATTR(online, 0600, etr_online_show, etr_online_store);
 
-static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
+static ssize_t etr_stepping_control_show(struct sys_device *dev,
+					struct sysdev_attribute *attr,
+					char *buf)
 {
 	return sprintf(buf, "%i\n", (dev == &etr_port0_dev) ?
 		       etr_eacr.e0 : etr_eacr.e1);
@@ -1144,7 +1149,8 @@ static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(stepping_control, 0400, etr_stepping_control_show, NULL);
 
-static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
+static ssize_t etr_mode_code_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	if (!etr_port0_online && !etr_port1_online)
 		/* Status word is not uptodate if both ports are offline. */
@@ -1155,7 +1161,8 @@ static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(state_code, 0400, etr_mode_code_show, NULL);
 
-static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
+static ssize_t etr_untuned_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1166,7 +1173,8 @@ static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(untuned, 0400, etr_untuned_show, NULL);
 
-static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_network_id_show(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1177,7 +1185,8 @@ static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(network, 0400, etr_network_id_show, NULL);
 
-static ssize_t etr_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_id_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1188,7 +1197,8 @@ static ssize_t etr_id_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(id, 0400, etr_id_show, NULL);
 
-static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
+static ssize_t etr_port_number_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1199,7 +1209,8 @@ static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(port, 0400, etr_port_number_show, NULL);
 
-static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
+static ssize_t etr_coupled_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1210,7 +1221,8 @@ static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(coupled, 0400, etr_coupled_show, NULL);
 
-static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
+static ssize_t etr_local_time_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 
@@ -1221,7 +1233,8 @@ static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
 
 static SYSDEV_ATTR(local_time, 0400, etr_local_time_show, NULL);
 
-static ssize_t etr_utc_offset_show(struct sys_device *dev, char *buf)
+static ssize_t etr_utc_offset_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct etr_aib *aib = etr_aib_from_dev(dev);
 

arch/sh/drivers/dma/dma-sysfs.c

@@ -23,7 +23,8 @@ static struct sysdev_class dma_sysclass = {
 };
 EXPORT_SYMBOL(dma_sysclass);
 
-static ssize_t dma_show_devices(struct sys_device *dev, char *buf)
+static ssize_t dma_show_devices(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t len = 0;
 	int i;
@@ -57,13 +58,15 @@ static int __init dma_sysclass_init(void)
 }
 postcore_initcall(dma_sysclass_init);
 
-static ssize_t dma_show_dev_id(struct sys_device *dev, char *buf)
+static ssize_t dma_show_dev_id(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct dma_channel *channel = to_dma_channel(dev);
 	return sprintf(buf, "%s\n", channel->dev_id);
 }
 
 static ssize_t dma_store_dev_id(struct sys_device *dev,
+				struct sysdev_attribute *attr,
 				const char *buf, size_t count)
 {
 	struct dma_channel *channel = to_dma_channel(dev);
@@ -74,6 +77,7 @@ static ssize_t dma_store_dev_id(struct sys_device *dev,
 static SYSDEV_ATTR(dev_id, S_IRUGO | S_IWUSR, dma_show_dev_id, dma_store_dev_id);
 
 static ssize_t dma_store_config(struct sys_device *dev,
+				struct sysdev_attribute *attr,
 				const char *buf, size_t count)
 {
 	struct dma_channel *channel = to_dma_channel(dev);
@@ -87,13 +91,15 @@ static ssize_t dma_store_config(struct sys_device *dev,
 
 static SYSDEV_ATTR(config, S_IWUSR, NULL, dma_store_config);
 
-static ssize_t dma_show_mode(struct sys_device *dev, char *buf)
+static ssize_t dma_show_mode(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct dma_channel *channel = to_dma_channel(dev);
 	return sprintf(buf, "0x%08x\n", channel->mode);
 }
 
 static ssize_t dma_store_mode(struct sys_device *dev,
+			      struct sysdev_attribute *attr,
 			      const char *buf, size_t count)
 {
 	struct dma_channel *channel = to_dma_channel(dev);
@@ -104,7 +110,8 @@ static ssize_t dma_store_mode(struct sys_device *dev,
 static SYSDEV_ATTR(mode, S_IRUGO | S_IWUSR, dma_show_mode, dma_store_mode);
 
 #define dma_ro_attr(field, fmt)						\
-static ssize_t dma_show_##field(struct sys_device *dev, char *buf)	\
+static ssize_t dma_show_##field(struct sys_device *dev, 		\
+				struct sysdev_attribute *attr, char *buf)\
 {									\
 	struct dma_channel *channel = to_dma_channel(dev);		\
 	return sprintf(buf, fmt, channel->field);			\

arch/sparc64/kernel/ebus.c

@@ -401,7 +401,7 @@ static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_de
 	dev->ofdev.node = dp;
 	dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
 	dev->ofdev.dev.bus = &ebus_bus_type;
-	sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
+	dev_set_name(&dev->ofdev.dev, "ebus[%08x]", dp->node);
 
 	/* Register with core */
 	if (of_device_register(&dev->ofdev) != 0)
@@ -501,7 +501,7 @@ void __init ebus_init(void)
 		ebus->ofdev.node = dp;
 		ebus->ofdev.dev.parent = &pdev->dev;
 		ebus->ofdev.dev.bus = &ebus_bus_type;
-		sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
+		dev_set_name(&ebus->ofdev.dev, "ebus%d", num_ebus);
 
 		/* Register with core */
 		if (of_device_register(&ebus->ofdev) != 0)

arch/sparc64/kernel/of_device.c

@@ -797,9 +797,9 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
 	op->dev.parent = parent;
 	op->dev.bus = &of_platform_bus_type;
 	if (!parent)
-		strcpy(op->dev.bus_id, "root");
+		dev_set_name(&op->dev, "root");
 	else
-		sprintf(op->dev.bus_id, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->node);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",

arch/sparc64/kernel/pci.c

@@ -408,7 +408,7 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
 	dev->class = class >> 8;
 	dev->revision = class & 0xff;
 
-	sprintf(dev->dev.bus_id, "%04x:%02x:%02x.%d", pci_domain_nr(bus),
+	dev_set_name(&dev->dev, "%04x:%02x:%02x.%d", pci_domain_nr(bus),
 		dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
 
 	if (ofpci_verbose)

arch/sparc64/kernel/sysfs.c

@@ -14,7 +14,8 @@
 static DEFINE_PER_CPU(struct hv_mmu_statistics, mmu_stats) __attribute__((aligned(64)));
 
 #define SHOW_MMUSTAT_ULONG(NAME) \
-static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
+static ssize_t show_##NAME(struct sys_device *dev, \
+			struct sysdev_attribute *attr, char *buf) \
 { \
 	struct hv_mmu_statistics *p = &per_cpu(mmu_stats, dev->id); \
 	return sprintf(buf, "%lu\n", p->NAME); \
@@ -135,13 +136,16 @@ static unsigned long write_mmustat_enable(unsigned long val)
 	return sun4v_mmustat_conf(ra, &orig_ra);
 }
 
-static ssize_t show_mmustat_enable(struct sys_device *s, char *buf)
+static ssize_t show_mmustat_enable(struct sys_device *s,
+				struct sysdev_attribute *attr, char *buf)
 {
 	unsigned long val = run_on_cpu(s->id, read_mmustat_enable, 0);
 	return sprintf(buf, "%lx\n", val);
 }
 
-static ssize_t store_mmustat_enable(struct sys_device *s, const char *buf, size_t count)
+static ssize_t store_mmustat_enable(struct sys_device *s,
+			struct sysdev_attribute *attr, const char *buf,
+			size_t count)
 {
 	unsigned long val, err;
 	int ret = sscanf(buf, "%ld", &val);
@@ -179,14 +183,16 @@ static void unregister_mmu_stats(struct sys_device *s)
 #endif
 
 #define SHOW_CPUDATA_ULONG_NAME(NAME, MEMBER) \
-static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
+static ssize_t show_##NAME(struct sys_device *dev, \
+		struct sysdev_attribute *attr, char *buf) \
 { \
 	cpuinfo_sparc *c = &cpu_data(dev->id); \
 	return sprintf(buf, "%lu\n", c->MEMBER); \
 }
 
 #define SHOW_CPUDATA_UINT_NAME(NAME, MEMBER) \
-static ssize_t show_##NAME(struct sys_device *dev, char *buf) \
+static ssize_t show_##NAME(struct sys_device *dev, \
+		struct sysdev_attribute *attr, char *buf) \
 { \
 	cpuinfo_sparc *c = &cpu_data(dev->id); \
 	return sprintf(buf, "%u\n", c->MEMBER); \

arch/sparc64/kernel/vio.c

@@ -224,7 +224,7 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
 	if (!strcmp(type, "domain-services-port"))
 		bus_id_name = "ds";
 
-	if (strlen(bus_id_name) >= KOBJ_NAME_LEN - 4) {
+	if (strlen(bus_id_name) >= BUS_ID_SIZE - 4) {
 		printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n",
 		       bus_id_name);
 		return NULL;
@@ -260,16 +260,14 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
 	vio_fill_channel_info(hp, mp, vdev);
 
 	if (!id) {
-		snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s",
-			 bus_id_name);
+		dev_set_name(&vdev->dev, "%s", bus_id_name);
 		vdev->dev_no = ~(u64)0;
 	} else if (!cfg_handle) {
-		snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s-%lu",
-			 bus_id_name, *id);
+		dev_set_name(&vdev->dev, "%s-%lu", bus_id_name, *id);
 		vdev->dev_no = *id;
 	} else {
-		snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s-%lu-%lu",
-			 bus_id_name, *cfg_handle, *id);
+		dev_set_name(&vdev->dev, "%s-%lu-%lu", bus_id_name,
+			     *cfg_handle, *id);
 		vdev->dev_no = *cfg_handle;
 	}
 
@@ -292,12 +290,12 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
 	}
 	vdev->dp = dp;
 
-	printk(KERN_INFO "VIO: Adding device %s\n", vdev->dev.bus_id);
+	printk(KERN_INFO "VIO: Adding device %s\n", dev_name(&vdev->dev));
 
 	err = device_register(&vdev->dev);
 	if (err) {
 		printk(KERN_ERR "VIO: Could not register device %s, err=%d\n",
-		       vdev->dev.bus_id, err);
+		       dev_name(&vdev->dev), err);
 		kfree(vdev);
 		return NULL;
 	}
@@ -330,7 +328,7 @@ static void vio_remove(struct mdesc_handle *hp, u64 node)
 	dev = device_find_child(&root_vdev->dev, (void *) node,
 				vio_md_node_match);
 	if (dev) {
-		printk(KERN_INFO "VIO: Removing device %s\n", dev->bus_id);
+		printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev));
 
 		device_unregister(dev);
 	}

arch/x86/kernel/cpu/mcheck/mce_64.c

@@ -762,10 +762,14 @@ DEFINE_PER_CPU(struct sys_device, device_mce);
 
 /* Why are there no generic functions for this? */
 #define ACCESSOR(name, var, start) \
-	static ssize_t show_ ## name(struct sys_device *s, char *buf) {	\
+	static ssize_t show_ ## name(struct sys_device *s,		\
+				     struct sysdev_attribute *attr,	\
+				     char *buf) {			\
 		return sprintf(buf, "%lx\n", (unsigned long)var);	\
 	}								\
-	static ssize_t set_ ## name(struct sys_device *s,const char *buf,size_t siz) { \
+	static ssize_t set_ ## name(struct sys_device *s,		\
+				    struct sysdev_attribute *attr,	\
+				    const char *buf, size_t siz) {	\
 		char *end;						\
 		unsigned long new = simple_strtoul(buf, &end, 0);	\
 		if (end == buf) return -EINVAL;				\
@@ -786,14 +790,16 @@ ACCESSOR(bank3ctl,bank[3],mce_restart())
 ACCESSOR(bank4ctl,bank[4],mce_restart())
 ACCESSOR(bank5ctl,bank[5],mce_restart())
 
-static ssize_t show_trigger(struct sys_device *s, char *buf)
+static ssize_t show_trigger(struct sys_device *s, struct sysdev_attribute *attr,
+				char *buf)
 {
 	strcpy(buf, trigger);
 	strcat(buf, "\n");
 	return strlen(trigger) + 1;
 }
 
-static ssize_t set_trigger(struct sys_device *s,const char *buf,size_t siz)
+static ssize_t set_trigger(struct sys_device *s, struct sysdev_attribute *attr,
+				const char *buf,size_t siz)
 {
 	char *p;
 	int len;
@@ -806,12 +812,12 @@ static ssize_t set_trigger(struct sys_device *s,const char *buf,size_t siz)
 }
 
 static SYSDEV_ATTR(trigger, 0644, show_trigger, set_trigger);
-ACCESSOR(tolerant,tolerant,)
+static SYSDEV_INT_ATTR(tolerant, 0644, tolerant);
 ACCESSOR(check_interval,check_interval,mce_restart())
 static struct sysdev_attribute *mce_attributes[] = {
 	&attr_bank0ctl, &attr_bank1ctl, &attr_bank2ctl,
 	&attr_bank3ctl, &attr_bank4ctl, &attr_bank5ctl,
-	&attr_tolerant, &attr_check_interval, &attr_trigger,
+	&attr_tolerant.attr, &attr_check_interval, &attr_trigger,
 	NULL
 };
 

arch/x86/kernel/cpu/mcheck/therm_throt.c

@@ -35,6 +35,7 @@ atomic_t therm_throt_en = ATOMIC_INIT(0);
 
 #define define_therm_throt_sysdev_show_func(name)                            \
 static ssize_t therm_throt_sysdev_show_##name(struct sys_device *dev,        \
+					struct sysdev_attribute *attr,	     \
                                               char *buf)                     \
 {                                                                            \
 	unsigned int cpu = dev->id;                                          \

arch/x86/kernel/cpuid.c

@@ -141,8 +141,8 @@ static __cpuinit int cpuid_device_create(int cpu)
 {
 	struct device *dev;
 
-	dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, cpu),
-			    "cpu%d", cpu);
+	dev = device_create_drvdata(cpuid_class, NULL, MKDEV(CPUID_MAJOR, cpu),
+				    NULL, "cpu%d", cpu);
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 

arch/x86/kernel/microcode.c

@@ -644,7 +644,9 @@ static void microcode_fini_cpu(int cpu)
 	mutex_unlock(&microcode_mutex);
 }
 
-static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz)
+static ssize_t reload_store(struct sys_device *dev,
+			    struct sysdev_attribute *attr,
+			    const char *buf, size_t sz)
 {
 	struct ucode_cpu_info *uci = ucode_cpu_info + dev->id;
 	char *end;
@@ -674,14 +676,16 @@ static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz)
 	return sz;
 }
 
-static ssize_t version_show(struct sys_device *dev, char *buf)
+static ssize_t version_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct ucode_cpu_info *uci = ucode_cpu_info + dev->id;
 
 	return sprintf(buf, "0x%x\n", uci->rev);
 }
 
-static ssize_t pf_show(struct sys_device *dev, char *buf)
+static ssize_t pf_show(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct ucode_cpu_info *uci = ucode_cpu_info + dev->id;
 

arch/x86/kernel/msr.c

@@ -149,8 +149,8 @@ static int __cpuinit msr_device_create(int cpu)
 {
 	struct device *dev;
 
-	dev = device_create(msr_class, NULL, MKDEV(MSR_MAJOR, cpu),
-			    "msr%d", cpu);
+	dev = device_create_drvdata(msr_class, NULL, MKDEV(MSR_MAJOR, cpu),
+				    NULL, "msr%d", cpu);
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 

arch/x86/kernel/pci-dma.c

@@ -314,8 +314,7 @@ int dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
-		printk(KERN_INFO "PCI: Disallowing DAC for device %s\n",
-				 dev->bus_id);
+		dev_info(dev, "PCI: Disallowing DAC for device\n");
 		return 0;
 	}
 #endif
@@ -342,8 +341,7 @@ int dma_supported(struct device *dev, u64 mask)
 	   type. Normally this doesn't make any difference, but gives
 	   more gentle handling of IOMMU overflow. */
 	if (iommu_sac_force && (mask >= DMA_40BIT_MASK)) {
-		printk(KERN_INFO "%s: Force SAC with mask %Lx\n",
-				 dev->bus_id, mask);
+		dev_info(dev, "Force SAC with mask %Lx\n", mask);
 		return 0;
 	}
 

arch/x86/kernel/pci-gart_64.c

@@ -198,9 +198,7 @@ static void iommu_full(struct device *dev, size_t size, int dir)
 	 * out. Hopefully no network devices use single mappings that big.
 	 */
 
-	printk(KERN_ERR
-		"PCI-DMA: Out of IOMMU space for %lu bytes at device %s\n",
-		size, dev->bus_id);
+	dev_err(dev, "PCI-DMA: Out of IOMMU space for %lu bytes\n", size);
 
 	if (size > PAGE_SIZE*EMERGENCY_PAGES) {
 		if (dir == PCI_DMA_FROMDEVICE || dir == PCI_DMA_BIDIRECTIONAL)

block/bsg.c

@@ -1044,7 +1044,8 @@ int bsg_register_queue(struct request_queue *q, struct device *parent,
 	bcd->release = release;
 	kref_init(&bcd->ref);
 	dev = MKDEV(bsg_major, bcd->minor);
-	class_dev = device_create(bsg_class, parent, dev, "%s", devname);
+	class_dev = device_create_drvdata(bsg_class, parent, dev, NULL,
+					  "%s", devname);
 	if (IS_ERR(class_dev)) {
 		ret = PTR_ERR(class_dev);
 		goto put_dev;

block/genhd.c

@@ -183,6 +183,7 @@ static int exact_lock(dev_t devt, void *data)
 void add_disk(struct gendisk *disk)
 {
 	struct backing_dev_info *bdi;
+	int retval;
 
 	disk->flags |= GENHD_FL_UP;
 	blk_register_region(MKDEV(disk->major, disk->first_minor),
@@ -193,7 +194,8 @@ void add_disk(struct gendisk *disk)
 
 	bdi = &disk->queue->backing_dev_info;
 	bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor));
-	sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
+	retval = sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi");
+	WARN_ON(retval);
 }
 
 EXPORT_SYMBOL(add_disk);
@@ -225,89 +227,111 @@ struct gendisk *get_gendisk(dev_t devt, int *part)
 }
 
 /*
- * print a full list of all partitions - intended for places where the root
- * filesystem can't be mounted and thus to give the victim some idea of what
- * went wrong
+ * print a partitions - intended for places where the root filesystem can't be
+ * mounted and thus to give the victim some idea of what went wrong
  */
-void __init printk_all_partitions(void)
+static int printk_partition(struct device *dev, void *data)
 {
-	struct device *dev;
 	struct gendisk *sgp;
 	char buf[BDEVNAME_SIZE];
 	int n;
 
-	mutex_lock(&block_class_lock);
-	/* For each block device... */
-	list_for_each_entry(dev, &block_class.devices, node) {
-		if (dev->type != &disk_type)
-			continue;
-		sgp = dev_to_disk(dev);
-		/*
-		 * Don't show empty devices or things that have been surpressed
-		 */
-		if (get_capacity(sgp) == 0 ||
-		    (sgp->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))
-			continue;
+	if (dev->type != &disk_type)
+		goto exit;
 
-		/*
-		 * Note, unlike /proc/partitions, I am showing the numbers in
-		 * hex - the same format as the root= option takes.
-		 */
-		printk("%02x%02x %10llu %s",
-			sgp->major, sgp->first_minor,
-			(unsigned long long)get_capacity(sgp) >> 1,
-			disk_name(sgp, 0, buf));
-		if (sgp->driverfs_dev != NULL &&
-		    sgp->driverfs_dev->driver != NULL)
-			printk(" driver: %s\n",
-				sgp->driverfs_dev->driver->name);
-		else
-			printk(" (driver?)\n");
-
-		/* now show the partitions */
-		for (n = 0; n < sgp->minors - 1; ++n) {
-			if (sgp->part[n] == NULL)
-				continue;
-			if (sgp->part[n]->nr_sects == 0)
-				continue;
-			printk("  %02x%02x %10llu %s\n",
-				sgp->major, n + 1 + sgp->first_minor,
-				(unsigned long long)sgp->part[n]->nr_sects >> 1,
-				disk_name(sgp, n + 1, buf));
-		}
+	sgp = dev_to_disk(dev);
+	/*
+	 * Don't show empty devices or things that have been surpressed
+	 */
+	if (get_capacity(sgp) == 0 ||
+	    (sgp->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))
+		goto exit;
+
+	/*
+	 * Note, unlike /proc/partitions, I am showing the numbers in
+	 * hex - the same format as the root= option takes.
+	 */
+	printk("%02x%02x %10llu %s",
+		sgp->major, sgp->first_minor,
+		(unsigned long long)get_capacity(sgp) >> 1,
+		disk_name(sgp, 0, buf));
+	if (sgp->driverfs_dev != NULL &&
+	    sgp->driverfs_dev->driver != NULL)
+		printk(" driver: %s\n",
+			sgp->driverfs_dev->driver->name);
+	else
+		printk(" (driver?)\n");
+
+	/* now show the partitions */
+	for (n = 0; n < sgp->minors - 1; ++n) {
+		if (sgp->part[n] == NULL)
+			goto exit;
+		if (sgp->part[n]->nr_sects == 0)
+			goto exit;
+		printk("  %02x%02x %10llu %s\n",
+			sgp->major, n + 1 + sgp->first_minor,
+			(unsigned long long)sgp->part[n]->nr_sects >> 1,
+			disk_name(sgp, n + 1, buf));
 	}
+exit:
+	return 0;
+}
 
+/*
+ * print a full list of all partitions - intended for places where the root
+ * filesystem can't be mounted and thus to give the victim some idea of what
+ * went wrong
+ */
+void __init printk_all_partitions(void)
+{
+	mutex_lock(&block_class_lock);
+	class_for_each_device(&block_class, NULL, NULL, printk_partition);
 	mutex_unlock(&block_class_lock);
 }
 
 #ifdef CONFIG_PROC_FS
 /* iterator */
+static int find_start(struct device *dev, void *data)
+{
+	loff_t k = *(loff_t *)data;
+
+	if (dev->type != &disk_type)
+		return 0;
+	if (!k--)
+		return 1;
+	return 0;
+}
+
 static void *part_start(struct seq_file *part, loff_t *pos)
 {
-	loff_t k = *pos;
 	struct device *dev;
+	loff_t n = *pos;
+
+	if (!n)
+		seq_puts(part, "major minor  #blocks  name\n\n");
 
 	mutex_lock(&block_class_lock);
-	list_for_each_entry(dev, &block_class.devices, node) {
-		if (dev->type != &disk_type)
-			continue;
-		if (!k--)
-			return dev_to_disk(dev);
-	}
+	dev = class_find_device(&block_class, NULL, (void *)pos, find_start);
+	if (dev)
+		return dev_to_disk(dev);
 	return NULL;
 }
 
+static int find_next(struct device *dev, void *data)
+{
+	if (dev->type == &disk_type)
+		return 1;
+	return 0;
+}
+
 static void *part_next(struct seq_file *part, void *v, loff_t *pos)
 {
 	struct gendisk *gp = v;
 	struct device *dev;
 	++*pos;
-	list_for_each_entry(dev, &gp->dev.node, node) {
-		if (&dev->node == &block_class.devices)
-			return NULL;
-		if (dev->type == &disk_type)
-			return dev_to_disk(dev);
-	}
+	dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
+	if (dev)
+		return dev_to_disk(dev);
 	return NULL;
 }
 
@@ -322,9 +346,6 @@ static int show_partition(struct seq_file *part, void *v)
 	int n;
 	char buf[BDEVNAME_SIZE];
 
-	if (&sgp->dev.node == block_class.devices.next)
-		seq_puts(part, "major minor  #blocks  name\n\n");
-
 	/* Don't show non-partitionable removeable devices or empty devices */
 	if (!get_capacity(sgp) ||
 			(sgp->minors == 1 && (sgp->flags & GENHD_FL_REMOVABLE)))
@@ -370,7 +391,10 @@ static struct kobject *base_probe(dev_t devt, int *part, void *data)
 
 static int __init genhd_device_init(void)
 {
-	int error = class_register(&block_class);
+	int error;
+
+	block_class.dev_kobj = sysfs_dev_block_kobj;
+	error = class_register(&block_class);
 	if (unlikely(error))
 		return error;
 	bdev_map = kobj_map_init(base_probe, &block_class_lock);
@@ -532,6 +556,7 @@ static struct device_type disk_type = {
 	.release	= disk_release,
 };
 
+#ifdef CONFIG_PROC_FS
 /*
  * aggregate disk stat collector.  Uses the same stats that the sysfs
  * entries do, above, but makes them available through one seq_file.
@@ -542,16 +567,12 @@ static struct device_type disk_type = {
 
 static void *diskstats_start(struct seq_file *part, loff_t *pos)
 {
-	loff_t k = *pos;
 	struct device *dev;
 
 	mutex_lock(&block_class_lock);
-	list_for_each_entry(dev, &block_class.devices, node) {
-		if (dev->type != &disk_type)
-			continue;
-		if (!k--)
-			return dev_to_disk(dev);
-	}
+	dev = class_find_device(&block_class, NULL, (void *)pos, find_start);
+	if (dev)
+		return dev_to_disk(dev);
 	return NULL;
 }
 
@@ -561,12 +582,9 @@ static void *diskstats_next(struct seq_file *part, void *v, loff_t *pos)
 	struct device *dev;
 
 	++*pos;
-	list_for_each_entry(dev, &gp->dev.node, node) {
-		if (&dev->node == &block_class.devices)
-			return NULL;
-		if (dev->type == &disk_type)
-			return dev_to_disk(dev);
-	}
+	dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
+	if (dev)
+		return dev_to_disk(dev);
 	return NULL;
 }
 
@@ -641,6 +659,7 @@ const struct seq_operations diskstats_op = {
 	.stop	= diskstats_stop,
 	.show	= diskstats_show
 };
+#endif /* CONFIG_PROC_FS */
 
 static void media_change_notify_thread(struct work_struct *work)
 {
@@ -665,24 +684,38 @@ void genhd_media_change_notify(struct gendisk *disk)
 EXPORT_SYMBOL_GPL(genhd_media_change_notify);
 #endif  /*  0  */
 
+struct find_block {
+	const char *name;
+	int part;
+};
+
+static int match_id(struct device *dev, void *data)
+{
+	struct find_block *find = data;
+
+	if (dev->type != &disk_type)
+		return 0;
+	if (strcmp(dev->bus_id, find->name) == 0) {
+		struct gendisk *disk = dev_to_disk(dev);
+		if (find->part < disk->minors)
+			return 1;
+	}
+	return 0;
+}
+
 dev_t blk_lookup_devt(const char *name, int part)
 {
 	struct device *dev;
 	dev_t devt = MKDEV(0, 0);
+	struct find_block find;
 
 	mutex_lock(&block_class_lock);
-	list_for_each_entry(dev, &block_class.devices, node) {
-		if (dev->type != &disk_type)
-			continue;
-		if (strcmp(dev->bus_id, name) == 0) {
-			struct gendisk *disk = dev_to_disk(dev);
-
-			if (part < disk->minors)
-				devt = MKDEV(MAJOR(dev->devt),
-					     MINOR(dev->devt) + part);
-			break;
-		}
-	}
+	find.name = name;
+	find.part = part;
+	dev = class_find_device(&block_class, NULL, (void *)&find, match_id);
+	if (dev)
+		devt = MKDEV(MAJOR(dev->devt),
+			     MINOR(dev->devt) + part);
 	mutex_unlock(&block_class_lock);
 
 	return devt;

drivers/acpi/fan.c

@@ -263,22 +263,22 @@ static int acpi_fan_add(struct acpi_device *device)
 		goto end;
 	}
 
-	printk(KERN_INFO PREFIX
-		"%s is registered as cooling_device%d\n",
-		device->dev.bus_id, cdev->id);
+	dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id);
 
 	acpi_driver_data(device) = cdev;
 	result = sysfs_create_link(&device->dev.kobj,
 				   &cdev->device.kobj,
 				   "thermal_cooling");
 	if (result)
-		printk(KERN_ERR PREFIX "Create sysfs link\n");
+		dev_err(&device->dev, "Failed to create sysfs link "
+			"'thermal_cooling'\n");
 
 	result = sysfs_create_link(&cdev->device.kobj,
 				   &device->dev.kobj,
 				   "device");
 	if (result)
-		printk(KERN_ERR PREFIX "Create sysfs link\n");
+		dev_err(&device->dev, "Failed to create sysfs link "
+			"'device'\n");
 
 	result = acpi_fan_add_fs(device);
 	if (result)

drivers/acpi/glue.c

@@ -146,8 +146,7 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
 	acpi_status status;
 
 	if (dev->archdata.acpi_handle) {
-		printk(KERN_WARNING PREFIX
-		       "Drivers changed 'acpi_handle' for %s\n", dev->bus_id);
+		dev_warn(dev, "Drivers changed 'acpi_handle'\n");
 		return -EINVAL;
 	}
 	get_device(dev);
@@ -195,8 +194,7 @@ static int acpi_unbind_one(struct device *dev)
 		/* acpi_bind_one increase refcnt by one */
 		put_device(dev);
 	} else {
-		printk(KERN_ERR PREFIX
-		       "Oops, 'acpi_handle' corrupt for %s\n", dev->bus_id);
+		dev_err(dev, "Oops, 'acpi_handle' corrupt\n");
 	}
 	return 0;
 }

drivers/acpi/processor_core.c

@@ -714,9 +714,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
 		goto end;
 	}
 
-	printk(KERN_INFO PREFIX
-		"%s is registered as cooling_device%d\n",
-		device->dev.bus_id, pr->cdev->id);
+	dev_info(&device->dev, "registered as cooling_device%d\n",
+		 pr->cdev->id);
 
 	result = sysfs_create_link(&device->dev.kobj,
 				   &pr->cdev->device.kobj,

drivers/acpi/scan.c

@@ -471,7 +471,7 @@ static int acpi_device_register(struct acpi_device *device,
 	device->dev.release = &acpi_device_release;
 	result = device_add(&device->dev);
 	if(result) {
-		printk(KERN_ERR PREFIX "Error adding device %s", device->dev.bus_id);
+		dev_err(&device->dev, "Error adding device\n");
 		goto end;
 	}
 

drivers/acpi/thermal.c

@@ -1179,8 +1179,8 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
 
 	tz->tz_enabled = 1;
 
-	printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n",
-			tz->device->dev.bus_id, tz->thermal_zone->id);
+	dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
+		 tz->thermal_zone->id);
 	return 0;
 }
 

drivers/acpi/video.c

@@ -762,9 +762,8 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 		if (IS_ERR(device->cdev))
 			return;
 
-		printk(KERN_INFO PREFIX
-			"%s is registered as cooling_device%d\n",
-			device->dev->dev.bus_id, device->cdev->id);
+		dev_info(&device->dev->dev, "registered as cooling_device%d\n",
+			 device->cdev->id);
 		result = sysfs_create_link(&device->dev->dev.kobj,
 				&device->cdev->device.kobj,
 				"thermal_cooling");

drivers/base/Kconfig

@@ -27,8 +27,9 @@ config PREVENT_FIRMWARE_BUILD
 	  If unsure say Y here.
 
 config FW_LOADER
-	tristate "Userspace firmware loading support"
+	tristate "Userspace firmware loading support" if EMBEDDED
 	depends on HOTPLUG
+	default y
 	---help---
 	  This option is provided for the case where no in-kernel-tree modules
 	  require userspace firmware loading support, but a module built outside

drivers/base/base.h

@@ -36,6 +36,33 @@ struct driver_private {
 };
 #define to_driver(obj) container_of(obj, struct driver_private, kobj)
 
+
+/**
+ * struct class_private - structure to hold the private to the driver core portions of the class structure.
+ *
+ * @class_subsys - the struct kset that defines this class.  This is the main kobject
+ * @class_devices - list of devices associated with this class
+ * @class_interfaces - list of class_interfaces associated with this class
+ * @class_dirs - "glue" directory for virtual devices associated with this class
+ * @class_mutex - mutex to protect the children, devices, and interfaces lists.
+ * @class - pointer back to the struct class that this structure is associated
+ * with.
+ *
+ * This structure is the one that is the actual kobject allowing struct
+ * class to be statically allocated safely.  Nothing outside of the driver
+ * core should ever touch these fields.
+ */
+struct class_private {
+	struct kset class_subsys;
+	struct list_head class_devices;
+	struct list_head class_interfaces;
+	struct kset class_dirs;
+	struct mutex class_mutex;
+	struct class *class;
+};
+#define to_class(obj)	\
+	container_of(obj, struct class_private, class_subsys.kobj)
+
 /* initialisation functions */
 extern int devices_init(void);
 extern int buses_init(void);

drivers/base/class.c

@@ -18,20 +18,20 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/genhd.h>
+#include <linux/mutex.h>
 #include "base.h"
 
 #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
-#define to_class(obj) container_of(obj, struct class, subsys.kobj)
 
 static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr,
 			       char *buf)
 {
 	struct class_attribute *class_attr = to_class_attr(attr);
-	struct class *dc = to_class(kobj);
+	struct class_private *cp = to_class(kobj);
 	ssize_t ret = -EIO;
 
 	if (class_attr->show)
-		ret = class_attr->show(dc, buf);
+		ret = class_attr->show(cp->class, buf);
 	return ret;
 }
 
@@ -39,17 +39,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
 				const char *buf, size_t count)
 {
 	struct class_attribute *class_attr = to_class_attr(attr);
-	struct class *dc = to_class(kobj);
+	struct class_private *cp = to_class(kobj);
 	ssize_t ret = -EIO;
 
 	if (class_attr->store)
-		ret = class_attr->store(dc, buf, count);
+		ret = class_attr->store(cp->class, buf, count);
 	return ret;
 }
 
 static void class_release(struct kobject *kobj)
 {
-	struct class *class = to_class(kobj);
+	struct class_private *cp = to_class(kobj);
+	struct class *class = cp->class;
 
 	pr_debug("class '%s': release.\n", class->name);
 
@@ -70,7 +71,7 @@ static struct kobj_type class_ktype = {
 	.release	= class_release,
 };
 
-/* Hotplug events for classes go to the class_obj subsys */
+/* Hotplug events for classes go to the class class_subsys */
 static struct kset *class_kset;
 
 
@@ -78,7 +79,8 @@ int class_create_file(struct class *cls, const struct class_attribute *attr)
 {
 	int error;
 	if (cls)
-		error = sysfs_create_file(&cls->subsys.kobj, &attr->attr);
+		error = sysfs_create_file(&cls->p->class_subsys.kobj,
+					  &attr->attr);
 	else
 		error = -EINVAL;
 	return error;
@@ -87,21 +89,20 @@ int class_create_file(struct class *cls, const struct class_attribute *attr)
 void class_remove_file(struct class *cls, const struct class_attribute *attr)
 {
 	if (cls)
-		sysfs_remove_file(&cls->subsys.kobj, &attr->attr);
+		sysfs_remove_file(&cls->p->class_subsys.kobj, &attr->attr);
 }
 
 static struct class *class_get(struct class *cls)
 {
 	if (cls)
-		return container_of(kset_get(&cls->subsys),
-				    struct class, subsys);
-	return NULL;
+		kset_get(&cls->p->class_subsys);
+	return cls;
 }
 
 static void class_put(struct class *cls)
 {
 	if (cls)
-		kset_put(&cls->subsys);
+		kset_put(&cls->p->class_subsys);
 }
 
 static int add_class_attrs(struct class *cls)
@@ -134,42 +135,57 @@ static void remove_class_attrs(struct class *cls)
 	}
 }
 
-int class_register(struct class *cls)
+int __class_register(struct class *cls, struct lock_class_key *key)
 {
+	struct class_private *cp;
 	int error;
 
 	pr_debug("device class '%s': registering\n", cls->name);
 
-	INIT_LIST_HEAD(&cls->devices);
-	INIT_LIST_HEAD(&cls->interfaces);
-	kset_init(&cls->class_dirs);
-	init_MUTEX(&cls->sem);
-	error = kobject_set_name(&cls->subsys.kobj, "%s", cls->name);
-	if (error)
+	cp = kzalloc(sizeof(*cp), GFP_KERNEL);
+	if (!cp)
+		return -ENOMEM;
+	INIT_LIST_HEAD(&cp->class_devices);
+	INIT_LIST_HEAD(&cp->class_interfaces);
+	kset_init(&cp->class_dirs);
+	__mutex_init(&cp->class_mutex, "struct class mutex", key);
+	error = kobject_set_name(&cp->class_subsys.kobj, "%s", cls->name);
+	if (error) {
+		kfree(cp);
 		return error;
+	}
+
+	/* set the default /sys/dev directory for devices of this class */
+	if (!cls->dev_kobj)
+		cls->dev_kobj = sysfs_dev_char_kobj;
 
 #if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK)
 	/* let the block class directory show up in the root of sysfs */
 	if (cls != &block_class)
-		cls->subsys.kobj.kset = class_kset;
+		cp->class_subsys.kobj.kset = class_kset;
 #else
-	cls->subsys.kobj.kset = class_kset;
+	cp->class_subsys.kobj.kset = class_kset;
 #endif
-	cls->subsys.kobj.ktype = &class_ktype;
+	cp->class_subsys.kobj.ktype = &class_ktype;
+	cp->class = cls;
+	cls->p = cp;
 
-	error = kset_register(&cls->subsys);
-	if (!error) {
-		error = add_class_attrs(class_get(cls));
-		class_put(cls);
+	error = kset_register(&cp->class_subsys);
+	if (error) {
+		kfree(cp);
+		return error;
 	}
+	error = add_class_attrs(class_get(cls));
+	class_put(cls);
 	return error;
 }
+EXPORT_SYMBOL_GPL(__class_register);
 
 void class_unregister(struct class *cls)
 {
 	pr_debug("device class '%s': unregistering\n", cls->name);
 	remove_class_attrs(cls);
-	kset_unregister(&cls->subsys);
+	kset_unregister(&cls->p->class_subsys);
 }
 
 static void class_create_release(struct class *cls)
@@ -189,7 +205,8 @@ static void class_create_release(struct class *cls)
  * Note, the pointer created here is to be destroyed when finished by
  * making a call to class_destroy().
  */
-struct class *class_create(struct module *owner, const char *name)
+struct class *__class_create(struct module *owner, const char *name,
+			     struct lock_class_key *key)
 {
 	struct class *cls;
 	int retval;
@@ -204,7 +221,7 @@ struct class *class_create(struct module *owner, const char *name)
 	cls->owner = owner;
 	cls->class_release = class_create_release;
 
-	retval = class_register(cls);
+	retval = __class_register(cls, key);
 	if (retval)
 		goto error;
 
@@ -214,6 +231,7 @@ error:
 	kfree(cls);
 	return ERR_PTR(retval);
 }
+EXPORT_SYMBOL_GPL(__class_create);
 
 /**
  * class_destroy - destroys a struct class structure
@@ -252,39 +270,44 @@ char *make_class_name(const char *name, struct kobject *kobj)
 /**
  * class_for_each_device - device iterator
  * @class: the class we're iterating
+ * @start: the device to start with in the list, if any.
  * @data: data for the callback
  * @fn: function to be called for each device
  *
  * Iterate over @class's list of devices, and call @fn for each,
- * passing it @data.
+ * passing it @data.  If @start is set, the list iteration will start
+ * there, otherwise if it is NULL, the iteration starts at the
+ * beginning of the list.
  *
  * We check the return of @fn each time. If it returns anything
  * other than 0, we break out and return that value.
  *
- * Note, we hold class->sem in this function, so it can not be
+ * Note, we hold class->class_mutex in this function, so it can not be
  * re-acquired in @fn, otherwise it will self-deadlocking. For
  * example, calls to add or remove class members would be verboten.
  */
-int class_for_each_device(struct class *class, void *data,
-			   int (*fn)(struct device *, void *))
+int class_for_each_device(struct class *class, struct device *start,
+			  void *data, int (*fn)(struct device *, void *))
 {
 	struct device *dev;
 	int error = 0;
 
 	if (!class)
 		return -EINVAL;
-	down(&class->sem);
-	list_for_each_entry(dev, &class->devices, node) {
+	mutex_lock(&class->p->class_mutex);
+	list_for_each_entry(dev, &class->p->class_devices, node) {
+		if (start) {
+			if (start == dev)
+				start = NULL;
+			continue;
+		}
 		dev = get_device(dev);
-		if (dev) {
-			error = fn(dev, data);
-			put_device(dev);
-		} else
-			error = -ENODEV;
+		error = fn(dev, data);
+		put_device(dev);
 		if (error)
 			break;
 	}
-	up(&class->sem);
+	mutex_unlock(&class->p->class_mutex);
 
 	return error;
 }
@@ -293,6 +316,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
 /**
  * class_find_device - device iterator for locating a particular device
  * @class: the class we're iterating
+ * @start: Device to begin with
  * @data: data for the match function
  * @match: function to check device
  *
@@ -306,12 +330,13 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
  *
  * Note, you will need to drop the reference with put_device() after use.
  *
- * We hold class->sem in this function, so it can not be
+ * We hold class->class_mutex in this function, so it can not be
  * re-acquired in @match, otherwise it will self-deadlocking. For
  * example, calls to add or remove class members would be verboten.
  */
-struct device *class_find_device(struct class *class, void *data,
-				   int (*match)(struct device *, void *))
+struct device *class_find_device(struct class *class, struct device *start,
+				 void *data,
+				 int (*match)(struct device *, void *))
 {
 	struct device *dev;
 	int found = 0;
@@ -319,19 +344,21 @@ struct device *class_find_device(struct class *class, void *data,
 	if (!class)
 		return NULL;
 
-	down(&class->sem);
-	list_for_each_entry(dev, &class->devices, node) {
+	mutex_lock(&class->p->class_mutex);
+	list_for_each_entry(dev, &class->p->class_devices, node) {
+		if (start) {
+			if (start == dev)
+				start = NULL;
+			continue;
+		}
 		dev = get_device(dev);
-		if (dev) {
-			if (match(dev, data)) {
-				found = 1;
-				break;
-			} else
-				put_device(dev);
-		} else
+		if (match(dev, data)) {
+			found = 1;
 			break;
+		} else
+			put_device(dev);
 	}
-	up(&class->sem);
+	mutex_unlock(&class->p->class_mutex);
 
 	return found ? dev : NULL;
 }
@@ -349,13 +376,13 @@ int class_interface_register(struct class_interface *class_intf)
 	if (!parent)
 		return -EINVAL;
 
-	down(&parent->sem);
-	list_add_tail(&class_intf->node, &parent->interfaces);
+	mutex_lock(&parent->p->class_mutex);
+	list_add_tail(&class_intf->node, &parent->p->class_interfaces);
 	if (class_intf->add_dev) {
-		list_for_each_entry(dev, &parent->devices, node)
+		list_for_each_entry(dev, &parent->p->class_devices, node)
 			class_intf->add_dev(dev, class_intf);
 	}
-	up(&parent->sem);
+	mutex_unlock(&parent->p->class_mutex);
 
 	return 0;
 }
@@ -368,13 +395,13 @@ void class_interface_unregister(struct class_interface *class_intf)
 	if (!parent)
 		return;
 
-	down(&parent->sem);
+	mutex_lock(&parent->p->class_mutex);
 	list_del_init(&class_intf->node);
 	if (class_intf->remove_dev) {
-		list_for_each_entry(dev, &parent->devices, node)
+		list_for_each_entry(dev, &parent->p->class_devices, node)
 			class_intf->remove_dev(dev, class_intf);
 	}
-	up(&parent->sem);
+	mutex_unlock(&parent->p->class_mutex);
 
 	class_put(parent);
 }
@@ -389,9 +416,7 @@ int __init classes_init(void)
 
 EXPORT_SYMBOL_GPL(class_create_file);
 EXPORT_SYMBOL_GPL(class_remove_file);
-EXPORT_SYMBOL_GPL(class_register);
 EXPORT_SYMBOL_GPL(class_unregister);
-EXPORT_SYMBOL_GPL(class_create);
 EXPORT_SYMBOL_GPL(class_destroy);
 
 EXPORT_SYMBOL_GPL(class_interface_register);

drivers/base/core.c

@@ -21,12 +21,16 @@
 #include <linux/genhd.h>
 #include <linux/kallsyms.h>
 #include <linux/semaphore.h>
+#include <linux/mutex.h>
 
 #include "base.h"
 #include "power/power.h"
 
 int (*platform_notify)(struct device *dev) = NULL;
 int (*platform_notify_remove)(struct device *dev) = NULL;
+static struct kobject *dev_kobj;
+struct kobject *sysfs_dev_char_kobj;
+struct kobject *sysfs_dev_block_kobj;
 
 #ifdef CONFIG_BLOCK
 static inline int device_is_not_partition(struct device *dev)
@@ -548,7 +552,7 @@ static struct kobject *get_device_parent(struct device *dev,
 {
 	/* class devices without a parent live in /sys/class/<classname>/ */
 	if (dev->class && (!parent || parent->class != dev->class))
-		return &dev->class->subsys.kobj;
+		return &dev->class->p->class_subsys.kobj;
 	/* all other devices keep their parent */
 	else if (parent)
 		return &parent->kobj;
@@ -594,13 +598,13 @@ static struct kobject *get_device_parent(struct device *dev,
 			parent_kobj = &parent->kobj;
 
 		/* find our class-directory at the parent and reference it */
-		spin_lock(&dev->class->class_dirs.list_lock);
-		list_for_each_entry(k, &dev->class->class_dirs.list, entry)
+		spin_lock(&dev->class->p->class_dirs.list_lock);
+		list_for_each_entry(k, &dev->class->p->class_dirs.list, entry)
 			if (k->parent == parent_kobj) {
 				kobj = kobject_get(k);
 				break;
 			}
-		spin_unlock(&dev->class->class_dirs.list_lock);
+		spin_unlock(&dev->class->p->class_dirs.list_lock);
 		if (kobj)
 			return kobj;
 
@@ -608,7 +612,7 @@ static struct kobject *get_device_parent(struct device *dev,
 		k = kobject_create();
 		if (!k)
 			return NULL;
-		k->kset = &dev->class->class_dirs;
+		k->kset = &dev->class->p->class_dirs;
 		retval = kobject_add(k, parent_kobj, "%s", dev->class->name);
 		if (retval < 0) {
 			kobject_put(k);
@@ -627,7 +631,7 @@ static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir)
 {
 	/* see if we live in a "glue" directory */
 	if (!glue_dir || !dev->class ||
-	    glue_dir->kset != &dev->class->class_dirs)
+	    glue_dir->kset != &dev->class->p->class_dirs)
 		return;
 
 	kobject_put(glue_dir);
@@ -654,17 +658,18 @@ static int device_add_class_symlinks(struct device *dev)
 	if (!dev->class)
 		return 0;
 
-	error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj,
+	error = sysfs_create_link(&dev->kobj,
+				  &dev->class->p->class_subsys.kobj,
 				  "subsystem");
 	if (error)
 		goto out;
 
 #ifdef CONFIG_SYSFS_DEPRECATED
 	/* stacked class devices need a symlink in the class directory */
-	if (dev->kobj.parent != &dev->class->subsys.kobj &&
+	if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
 	    device_is_not_partition(dev)) {
-		error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj,
-					  dev->bus_id);
+		error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
+					  &dev->kobj, dev->bus_id);
 		if (error)
 			goto out_subsys;
 	}
@@ -701,13 +706,14 @@ out_device:
 	if (dev->parent && device_is_not_partition(dev))
 		sysfs_remove_link(&dev->kobj, "device");
 out_busid:
-	if (dev->kobj.parent != &dev->class->subsys.kobj &&
+	if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
 	    device_is_not_partition(dev))
-		sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id);
+		sysfs_remove_link(&dev->class->p->class_subsys.kobj,
+				  dev->bus_id);
 #else
 	/* link in the class directory pointing to the device */
-	error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj,
-				  dev->bus_id);
+	error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
+				  &dev->kobj, dev->bus_id);
 	if (error)
 		goto out_subsys;
 
@@ -720,7 +726,7 @@ out_busid:
 	return 0;
 
 out_busid:
-	sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id);
+	sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id);
 #endif
 
 out_subsys:
@@ -746,14 +752,15 @@ static void device_remove_class_symlinks(struct device *dev)
 		sysfs_remove_link(&dev->kobj, "device");
 	}
 
-	if (dev->kobj.parent != &dev->class->subsys.kobj &&
+	if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
 	    device_is_not_partition(dev))
-		sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id);
+		sysfs_remove_link(&dev->class->p->class_subsys.kobj,
+				  dev->bus_id);
 #else
 	if (dev->parent && device_is_not_partition(dev))
 		sysfs_remove_link(&dev->kobj, "device");
 
-	sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id);
+	sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id);
 #endif
 
 	sysfs_remove_link(&dev->kobj, "subsystem");
@@ -775,6 +782,54 @@ int dev_set_name(struct device *dev, const char *fmt, ...)
 }
 EXPORT_SYMBOL_GPL(dev_set_name);
 
+/**
+ * device_to_dev_kobj - select a /sys/dev/ directory for the device
+ * @dev: device
+ *
+ * By default we select char/ for new entries.  Setting class->dev_obj
+ * to NULL prevents an entry from being created.  class->dev_kobj must
+ * be set (or cleared) before any devices are registered to the class
+ * otherwise device_create_sys_dev_entry() and
+ * device_remove_sys_dev_entry() will disagree about the the presence
+ * of the link.
+ */
+static struct kobject *device_to_dev_kobj(struct device *dev)
+{
+	struct kobject *kobj;
+
+	if (dev->class)
+		kobj = dev->class->dev_kobj;
+	else
+		kobj = sysfs_dev_char_kobj;
+
+	return kobj;
+}
+
+static int device_create_sys_dev_entry(struct device *dev)
+{
+	struct kobject *kobj = device_to_dev_kobj(dev);
+	int error = 0;
+	char devt_str[15];
+
+	if (kobj) {
+		format_dev_t(devt_str, dev->devt);
+		error = sysfs_create_link(kobj, &dev->kobj, devt_str);
+	}
+
+	return error;
+}
+
+static void device_remove_sys_dev_entry(struct device *dev)
+{
+	struct kobject *kobj = device_to_dev_kobj(dev);
+	char devt_str[15];
+
+	if (kobj) {
+		format_dev_t(devt_str, dev->devt);
+		sysfs_remove_link(kobj, devt_str);
+	}
+}
+
 /**
  * device_add - add device to device hierarchy.
  * @dev: device.
@@ -829,6 +884,10 @@ int device_add(struct device *dev)
 		error = device_create_file(dev, &devt_attr);
 		if (error)
 			goto ueventattrError;
+
+		error = device_create_sys_dev_entry(dev);
+		if (error)
+			goto devtattrError;
 	}
 
 	error = device_add_class_symlinks(dev);
@@ -849,15 +908,16 @@ int device_add(struct device *dev)
 		klist_add_tail(&dev->knode_parent, &parent->klist_children);
 
 	if (dev->class) {
-		down(&dev->class->sem);
+		mutex_lock(&dev->class->p->class_mutex);
 		/* tie the class to the device */
-		list_add_tail(&dev->node, &dev->class->devices);
+		list_add_tail(&dev->node, &dev->class->p->class_devices);
 
 		/* notify any interfaces that the device is here */
-		list_for_each_entry(class_intf, &dev->class->interfaces, node)
+		list_for_each_entry(class_intf,
+				    &dev->class->p->class_interfaces, node)
 			if (class_intf->add_dev)
 				class_intf->add_dev(dev, class_intf);
-		up(&dev->class->sem);
+		mutex_unlock(&dev->class->p->class_mutex);
 	}
  Done:
 	put_device(dev);
@@ -872,6 +932,9 @@ int device_add(struct device *dev)
  AttrsError:
 	device_remove_class_symlinks(dev);
  SymlinkError:
+	if (MAJOR(dev->devt))
+		device_remove_sys_dev_entry(dev);
+ devtattrError:
 	if (MAJOR(dev->devt))
 		device_remove_file(dev, &devt_attr);
  ueventattrError:
@@ -948,19 +1011,22 @@ void device_del(struct device *dev)
 	device_pm_remove(dev);
 	if (parent)
 		klist_del(&dev->knode_parent);
-	if (MAJOR(dev->devt))
+	if (MAJOR(dev->devt)) {
+		device_remove_sys_dev_entry(dev);
 		device_remove_file(dev, &devt_attr);
+	}
 	if (dev->class) {
 		device_remove_class_symlinks(dev);
 
-		down(&dev->class->sem);
+		mutex_lock(&dev->class->p->class_mutex);
 		/* notify any interfaces that the device is now gone */
-		list_for_each_entry(class_intf, &dev->class->interfaces, node)
+		list_for_each_entry(class_intf,
+				    &dev->class->p->class_interfaces, node)
 			if (class_intf->remove_dev)
 				class_intf->remove_dev(dev, class_intf);
 		/* remove the device from the class list */
 		list_del_init(&dev->node);
-		up(&dev->class->sem);
+		mutex_unlock(&dev->class->p->class_mutex);
 	}
 	device_remove_file(dev, &uevent_attr);
 	device_remove_attrs(dev);
@@ -1074,7 +1140,25 @@ int __init devices_init(void)
 	devices_kset = kset_create_and_add("devices", &device_uevent_ops, NULL);
 	if (!devices_kset)
 		return -ENOMEM;
+	dev_kobj = kobject_create_and_add("dev", NULL);
+	if (!dev_kobj)
+		goto dev_kobj_err;
+	sysfs_dev_block_kobj = kobject_create_and_add("block", dev_kobj);
+	if (!sysfs_dev_block_kobj)
+		goto block_kobj_err;
+	sysfs_dev_char_kobj = kobject_create_and_add("char", dev_kobj);
+	if (!sysfs_dev_char_kobj)
+		goto char_kobj_err;
+
 	return 0;
+
+ char_kobj_err:
+	kobject_put(sysfs_dev_block_kobj);
+ block_kobj_err:
+	kobject_put(dev_kobj);
+ dev_kobj_err:
+	kset_unregister(devices_kset);
+	return -ENOMEM;
 }
 
 EXPORT_SYMBOL_GPL(device_for_each_child);
@@ -1157,49 +1241,12 @@ error:
 }
 EXPORT_SYMBOL_GPL(device_create_vargs);
 
-/**
- * device_create_drvdata - creates a device and registers it with sysfs
- * @class: pointer to the struct class that this device should be registered to
- * @parent: pointer to the parent struct device of this new device, if any
- * @devt: the dev_t for the char device to be added
- * @drvdata: the data to be added to the device for callbacks
- * @fmt: string for the device's name
- *
- * This function can be used by char device classes.  A struct device
- * will be created in sysfs, registered to the specified class.
- *
- * A "dev" file will be created, showing the dev_t for the device, if
- * the dev_t is not 0,0.
- * If a pointer to a parent struct device is passed in, the newly created
- * struct device will be a child of that device in sysfs.
- * The pointer to the struct device will be returned from the call.
- * Any further sysfs files that might be required can be created using this
- * pointer.
- *
- * Note: the struct class passed to this function must have previously
- * been created with a call to class_create().
- */
-struct device *device_create_drvdata(struct class *class,
-				     struct device *parent,
-				     dev_t devt,
-				     void *drvdata,
-				     const char *fmt, ...)
-{
-	va_list vargs;
-	struct device *dev;
-
-	va_start(vargs, fmt);
-	dev = device_create_vargs(class, parent, devt, drvdata, fmt, vargs);
-	va_end(vargs);
-	return dev;
-}
-EXPORT_SYMBOL_GPL(device_create_drvdata);
-
 /**
  * device_create - creates a device and registers it with sysfs
  * @class: pointer to the struct class that this device should be registered to
  * @parent: pointer to the parent struct device of this new device, if any
  * @devt: the dev_t for the char device to be added
+ * @drvdata: the data to be added to the device for callbacks
  * @fmt: string for the device's name
  *
  * This function can be used by char device classes.  A struct device
@@ -1217,13 +1264,13 @@ EXPORT_SYMBOL_GPL(device_create_drvdata);
  * been created with a call to class_create().
  */
 struct device *device_create(struct class *class, struct device *parent,
-			     dev_t devt, const char *fmt, ...)
+			     dev_t devt, void *drvdata, const char *fmt, ...)
 {
 	va_list vargs;
 	struct device *dev;
 
 	va_start(vargs, fmt);
-	dev = device_create_vargs(class, parent, devt, NULL, fmt, vargs);
+	dev = device_create_vargs(class, parent, devt, drvdata, fmt, vargs);
 	va_end(vargs);
 	return dev;
 }
@@ -1248,7 +1295,7 @@ void device_destroy(struct class *class, dev_t devt)
 {
 	struct device *dev;
 
-	dev = class_find_device(class, &devt, __match_devt);
+	dev = class_find_device(class, NULL, &devt, __match_devt);
 	if (dev) {
 		put_device(dev);
 		device_unregister(dev);
@@ -1298,8 +1345,9 @@ int device_rename(struct device *dev, char *new_name)
 	if (old_class_name) {
 		new_class_name = make_class_name(dev->class->name, &dev->kobj);
 		if (new_class_name) {
-			error = sysfs_create_link(&dev->parent->kobj,
-						  &dev->kobj, new_class_name);
+			error = sysfs_create_link_nowarn(&dev->parent->kobj,
+							 &dev->kobj,
+							 new_class_name);
 			if (error)
 				goto out;
 			sysfs_remove_link(&dev->parent->kobj, old_class_name);
@@ -1307,11 +1355,12 @@ int device_rename(struct device *dev, char *new_name)
 	}
 #else
 	if (dev->class) {
-		error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj,
-					  dev->bus_id);
+		error = sysfs_create_link_nowarn(&dev->class->p->class_subsys.kobj,
+						 &dev->kobj, dev->bus_id);
 		if (error)
 			goto out;
-		sysfs_remove_link(&dev->class->subsys.kobj, old_device_name);
+		sysfs_remove_link(&dev->class->p->class_subsys.kobj,
+				  old_device_name);
 	}
 #endif
 
@@ -1447,4 +1496,7 @@ void device_shutdown(void)
 			dev->driver->shutdown(dev);
 		}
 	}
+	kobject_put(sysfs_dev_char_kobj);
+	kobject_put(sysfs_dev_block_kobj);
+	kobject_put(dev_kobj);
 }

drivers/base/cpu.c

@@ -21,15 +21,16 @@ EXPORT_SYMBOL(cpu_sysdev_class);
 static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices);
 
 #ifdef CONFIG_HOTPLUG_CPU
-static ssize_t show_online(struct sys_device *dev, char *buf)
+static ssize_t show_online(struct sys_device *dev, struct sysdev_attribute *attr,
+			   char *buf)
 {
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev);
 
 	return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id));
 }
 
-static ssize_t __ref store_online(struct sys_device *dev, const char *buf,
-			    size_t count)
+static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr,
+				 const char *buf, size_t count)
 {
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev);
 	ssize_t ret;
@@ -80,7 +81,8 @@ static inline void register_cpu_control(struct cpu *cpu)
 #ifdef CONFIG_KEXEC
 #include <linux/kexec.h>
 
-static ssize_t show_crash_notes(struct sys_device *dev, char *buf)
+static ssize_t show_crash_notes(struct sys_device *dev, struct sysdev_attribute *attr,
+				char *buf)
 {
 	struct cpu *cpu = container_of(dev, struct cpu, sysdev);
 	ssize_t rc;

drivers/base/memory.c

@@ -92,7 +92,8 @@ unregister_memory(struct memory_block *memory, struct mem_section *section)
  * uses.
  */
 
-static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf)
+static ssize_t show_mem_phys_index(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct memory_block *mem =
 		container_of(dev, struct memory_block, sysdev);
@@ -102,7 +103,8 @@ static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf)
 /*
  * online, offline, going offline, etc.
  */
-static ssize_t show_mem_state(struct sys_device *dev, char *buf)
+static ssize_t show_mem_state(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	struct memory_block *mem =
 		container_of(dev, struct memory_block, sysdev);
@@ -217,7 +219,8 @@ out:
 }
 
 static ssize_t
-store_mem_state(struct sys_device *dev, const char *buf, size_t count)
+store_mem_state(struct sys_device *dev,
+		struct sysdev_attribute *attr, const char *buf, size_t count)
 {
 	struct memory_block *mem;
 	unsigned int phys_section_nr;
@@ -248,7 +251,8 @@ out:
  * s.t. if I offline all of these sections I can then
  * remove the physical device?
  */
-static ssize_t show_phys_device(struct sys_device *dev, char *buf)
+static ssize_t show_phys_device(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	struct memory_block *mem =
 		container_of(dev, struct memory_block, sysdev);

drivers/base/node.c

@@ -36,11 +36,13 @@ static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf)
 	return len;
 }
 
-static inline ssize_t node_read_cpumask(struct sys_device *dev, char *buf)
+static inline ssize_t node_read_cpumask(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	return node_read_cpumap(dev, 0, buf);
 }
-static inline ssize_t node_read_cpulist(struct sys_device *dev, char *buf)
+static inline ssize_t node_read_cpulist(struct sys_device *dev,
+				struct sysdev_attribute *attr, char *buf)
 {
 	return node_read_cpumap(dev, 1, buf);
 }
@@ -49,7 +51,8 @@ static SYSDEV_ATTR(cpumap,  S_IRUGO, node_read_cpumask, NULL);
 static SYSDEV_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL);
 
 #define K(x) ((x) << (PAGE_SHIFT - 10))
-static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
+static ssize_t node_read_meminfo(struct sys_device * dev,
+			struct sysdev_attribute *attr, char * buf)
 {
 	int n;
 	int nid = dev->id;
@@ -112,7 +115,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
 #undef K
 static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL);
 
-static ssize_t node_read_numastat(struct sys_device * dev, char * buf)
+static ssize_t node_read_numastat(struct sys_device * dev,
+				struct sysdev_attribute *attr, char * buf)
 {
 	return sprintf(buf,
 		       "numa_hit %lu\n"
@@ -130,7 +134,8 @@ static ssize_t node_read_numastat(struct sys_device * dev, char * buf)
 }
 static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
 
-static ssize_t node_read_distance(struct sys_device * dev, char * buf)
+static ssize_t node_read_distance(struct sys_device * dev,
+			struct sysdev_attribute *attr, char * buf)
 {
 	int nid = dev->id;
 	int len = 0;

drivers/base/power/trace.c

@@ -194,7 +194,7 @@ static int show_dev_hash(unsigned int value)
 		struct device * dev = to_device(entry);
 		unsigned int hash = hash_string(DEVSEED, dev->bus_id, DEVHASH);
 		if (hash == value) {
-			printk("  hash matches device %s\n", dev->bus_id);
+			dev_info(dev, "hash matches\n");
 			match++;
 		}
 		entry = entry->prev;

drivers/base/sys.c

@@ -36,7 +36,7 @@ sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer)
 	struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr);
 
 	if (sysdev_attr->show)
-		return sysdev_attr->show(sysdev, buffer);
+		return sysdev_attr->show(sysdev, sysdev_attr, buffer);
 	return -EIO;
 }
 
@@ -49,7 +49,7 @@ sysdev_store(struct kobject * kobj, struct attribute * attr,
 	struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr);
 
 	if (sysdev_attr->store)
-		return sysdev_attr->store(sysdev, buffer, count);
+		return sysdev_attr->store(sysdev, sysdev_attr, buffer, count);
 	return -EIO;
 }
 
@@ -130,8 +130,8 @@ static struct kset *system_kset;
 
 int sysdev_class_register(struct sysdev_class * cls)
 {
-	pr_debug("Registering sysdev class '%s'\n",
-		 kobject_name(&cls->kset.kobj));
+	pr_debug("Registering sysdev class '%s'\n", cls->name);
+
 	INIT_LIST_HEAD(&cls->drivers);
 	memset(&cls->kset.kobj, 0x00, sizeof(struct kobject));
 	cls->kset.kobj.parent = &system_kset->kobj;
@@ -241,7 +241,8 @@ int sysdev_register(struct sys_device * sysdev)
 	if (!cls)
 		return -EINVAL;
 
-	pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj));
+	pr_debug("Registering sys device of class '%s'\n",
+		 kobject_name(&cls->kset.kobj));
 
 	/* initialize the kobject to 0, in case it had previously been used */
 	memset(&sysdev->kobj, 0x00, sizeof(struct kobject));
@@ -257,6 +258,9 @@ int sysdev_register(struct sys_device * sysdev)
 	if (!error) {
 		struct sysdev_driver * drv;
 
+		pr_debug("Registering sys device '%s'\n",
+			 kobject_name(&sysdev->kobj));
+
 		mutex_lock(&sysdev_drivers_lock);
 		/* Generic notification is implicit, because it's that
 		 * code that should have called us.
@@ -269,6 +273,7 @@ int sysdev_register(struct sys_device * sysdev)
 		}
 		mutex_unlock(&sysdev_drivers_lock);
 	}
+
 	kobject_uevent(&sysdev->kobj, KOBJ_ADD);
 	return error;
 }
@@ -474,3 +479,52 @@ int __init system_bus_init(void)
 
 EXPORT_SYMBOL_GPL(sysdev_register);
 EXPORT_SYMBOL_GPL(sysdev_unregister);
+
+#define to_ext_attr(x) container_of(x, struct sysdev_ext_attribute, attr)
+
+ssize_t sysdev_store_ulong(struct sys_device *sysdev,
+			   struct sysdev_attribute *attr,
+			   const char *buf, size_t size)
+{
+	struct sysdev_ext_attribute *ea = to_ext_attr(attr);
+	char *end;
+	unsigned long new = simple_strtoul(buf, &end, 0);
+	if (end == buf)
+		return -EINVAL;
+	*(unsigned long *)(ea->var) = new;
+	return end - buf;
+}
+EXPORT_SYMBOL_GPL(sysdev_store_ulong);
+
+ssize_t sysdev_show_ulong(struct sys_device *sysdev,
+			  struct sysdev_attribute *attr,
+			  char *buf)
+{
+	struct sysdev_ext_attribute *ea = to_ext_attr(attr);
+	return snprintf(buf, PAGE_SIZE, "%lx\n", *(unsigned long *)(ea->var));
+}
+EXPORT_SYMBOL_GPL(sysdev_show_ulong);
+
+ssize_t sysdev_store_int(struct sys_device *sysdev,
+			   struct sysdev_attribute *attr,
+			   const char *buf, size_t size)
+{
+	struct sysdev_ext_attribute *ea = to_ext_attr(attr);
+	char *end;
+	long new = simple_strtol(buf, &end, 0);
+	if (end == buf || new > INT_MAX || new < INT_MIN)
+		return -EINVAL;
+	*(int *)(ea->var) = new;
+	return end - buf;
+}
+EXPORT_SYMBOL_GPL(sysdev_store_int);
+
+ssize_t sysdev_show_int(struct sys_device *sysdev,
+			  struct sysdev_attribute *attr,
+			  char *buf)
+{
+	struct sysdev_ext_attribute *ea = to_ext_attr(attr);
+	return snprintf(buf, PAGE_SIZE, "%d\n", *(int *)(ea->var));
+}
+EXPORT_SYMBOL_GPL(sysdev_show_int);
+

drivers/base/topology.c

@@ -34,7 +34,8 @@
 static SYSDEV_ATTR(_name, 0444, show_##_name, NULL)
 
 #define define_id_show_func(name)				\
-static ssize_t show_##name(struct sys_device *dev, char *buf)	\
+static ssize_t show_##name(struct sys_device *dev,		\
+		struct sysdev_attribute *attr, char *buf)	\
 {								\
 	unsigned int cpu = dev->id;				\
 	return sprintf(buf, "%d\n", topology_##name(cpu));	\
@@ -59,14 +60,17 @@ static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf)
 
 #ifdef arch_provides_topology_pointers
 #define define_siblings_show_map(name)					\
-static ssize_t show_##name(struct sys_device *dev, char *buf)	\
+static ssize_t show_##name(struct sys_device *dev,			\
+			   struct sysdev_attribute *attr, char *buf)	\
 {									\
 	unsigned int cpu = dev->id;					\
 	return show_cpumap(0, &(topology_##name(cpu)), buf);		\
 }
 
 #define define_siblings_show_list(name)					\
-static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
+static ssize_t show_##name##_list(struct sys_device *dev,		\
+				  struct sysdev_attribute *attr,	\
+				  char *buf)				\
 {									\
 	unsigned int cpu = dev->id;					\
 	return show_cpumap(1, &(topology_##name(cpu)), buf);		\
@@ -74,7 +78,8 @@ static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
 
 #else
 #define define_siblings_show_map(name)					\
-static ssize_t show_##name(struct sys_device *dev, char *buf)	\
+static ssize_t show_##name(struct sys_device *dev,			\
+			   struct sysdev_attribute *attr, char *buf)	\
 {									\
 	unsigned int cpu = dev->id;					\
 	cpumask_t mask = topology_##name(cpu);				\
@@ -82,7 +87,9 @@ static ssize_t show_##name(struct sys_device *dev, char *buf)	\
 }
 
 #define define_siblings_show_list(name)					\
-static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
+static ssize_t show_##name##_list(struct sys_device *dev,		\
+				  struct sysdev_attribute *attr,	\
+				  char *buf)				\
 {									\
 	unsigned int cpu = dev->id;					\
 	cpumask_t mask = topology_##name(cpu);				\

drivers/block/aoe/aoechr.c

@@ -277,8 +277,9 @@ aoechr_init(void)
 		return PTR_ERR(aoe_class);
 	}
 	for (i = 0; i < ARRAY_SIZE(chardevs); ++i)
-		device_create(aoe_class, NULL,
-			      MKDEV(AOE_MAJOR, chardevs[i].minor), chardevs[i].name);
+		device_create_drvdata(aoe_class, NULL,
+				      MKDEV(AOE_MAJOR, chardevs[i].minor),
+				      NULL, chardevs[i].name);
 
 	return 0;
 }

drivers/block/paride/pg.c

@@ -686,8 +686,9 @@ static int __init pg_init(void)
 	for (unit = 0; unit < PG_UNITS; unit++) {
 		struct pg *dev = &devices[unit];
 		if (dev->present)
-			device_create(pg_class, NULL, MKDEV(major, unit),
-				      "pg%u", unit);
+			device_create_drvdata(pg_class, NULL,
+					      MKDEV(major, unit), NULL,
+					      "pg%u", unit);
 	}
 	err = 0;
 	goto out;

drivers/block/paride/pt.c

@@ -979,10 +979,12 @@ static int __init pt_init(void)
 
 	for (unit = 0; unit < PT_UNITS; unit++)
 		if (pt[unit].present) {
-			device_create(pt_class, NULL, MKDEV(major, unit),
-				      "pt%d", unit);
-			device_create(pt_class, NULL, MKDEV(major, unit + 128),
-				      "pt%dn", unit);
+			device_create_drvdata(pt_class, NULL,
+					      MKDEV(major, unit), NULL,
+					      "pt%d", unit);
+			device_create_drvdata(pt_class, NULL,
+					      MKDEV(major, unit + 128), NULL,
+					      "pt%dn", unit);
 		}
 	goto out;
 

drivers/block/pktcdvd.c

@@ -303,7 +303,9 @@ static struct kobj_type kobj_pkt_type_wqueue = {
 static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
 {
 	if (class_pktcdvd) {
-		pd->dev = device_create(class_pktcdvd, NULL, pd->pkt_dev, "%s", pd->name);
+		pd->dev = device_create_drvdata(class_pktcdvd, NULL,
+						pd->pkt_dev, NULL,
+						"%s", pd->name);
 		if (IS_ERR(pd->dev))
 			pd->dev = NULL;
 	}

drivers/char/dsp56k.c

@@ -500,7 +500,8 @@ static int __init dsp56k_init_driver(void)
 		err = PTR_ERR(dsp56k_class);
 		goto out_chrdev;
 	}
-	device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), "dsp56k");
+	device_create_drvdata(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0),
+			      NULL, "dsp56k");
 
 	printk(banner);
 	goto out;

drivers/char/ip2/ip2main.c

@@ -718,12 +718,12 @@ ip2_loadmain(int *iop, int *irqp)
 			}
 
 			if ( NULL != ( pB = i2BoardPtrTable[i] ) ) {
-				device_create(ip2_class, NULL,
-						MKDEV(IP2_IPL_MAJOR, 4 * i),
-						"ipl%d", i);
-				device_create(ip2_class, NULL,
-						MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
-						"stat%d", i);
+				device_create_drvdata(ip2_class, NULL,
+						      MKDEV(IP2_IPL_MAJOR, 4 * i),
+						      NULL, "ipl%d", i);
+				device_create_drvdata(ip2_class, NULL,
+						      MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
+						      NULL, "stat%d", i);
 
 			    for ( box = 0; box < ABS_MAX_BOXES; ++box )
 			    {

drivers/char/ipmi/ipmi_devintf.c

@@ -871,7 +871,7 @@ static void ipmi_new_smi(int if_num, struct device *device)
 	entry->dev = dev;
 
 	mutex_lock(&reg_list_mutex);
-	device_create(ipmi_class, device, dev, "ipmi%d", if_num);
+	device_create_drvdata(ipmi_class, device, dev, NULL, "ipmi%d", if_num);
 	list_add(&entry->link, &reg_list);
 	mutex_unlock(&reg_list_mutex);
 }

drivers/char/istallion.c

@@ -4599,8 +4599,9 @@ static int __init istallion_module_init(void)
 
 	istallion_class = class_create(THIS_MODULE, "staliomem");
 	for (i = 0; i < 4; i++)
-		device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i),
-			      "staliomem%d", i);
+		device_create_drvdata(istallion_class, NULL,
+				      MKDEV(STL_SIOMEMMAJOR, i),
+				      NULL, "staliomem%d", i);
 
 	return 0;
 err_deinit:

drivers/char/lp.c

@@ -813,7 +813,8 @@ static int lp_register(int nr, struct parport *port)
 	if (reset)
 		lp_reset(nr);
 
-	device_create(lp_class, port->dev, MKDEV(LP_MAJOR, nr), "lp%d", nr);
+	device_create_drvdata(lp_class, port->dev, MKDEV(LP_MAJOR, nr), NULL,
+			      "lp%d", nr);
 
 	printk(KERN_INFO "lp%d: using %s (%s).\n", nr, port->name, 
 	       (port->irq == PARPORT_IRQ_NONE)?"polling":"interrupt-driven");

drivers/char/mem.c

@@ -989,9 +989,9 @@ static int __init chr_dev_init(void)
 
 	mem_class = class_create(THIS_MODULE, "mem");
 	for (i = 0; i < ARRAY_SIZE(devlist); i++)
-		device_create(mem_class, NULL,
-			      MKDEV(MEM_MAJOR, devlist[i].minor),
-			      devlist[i].name);
+		device_create_drvdata(mem_class, NULL,
+				      MKDEV(MEM_MAJOR, devlist[i].minor),
+				      NULL, devlist[i].name);
 
 	return 0;
 }

drivers/char/misc.c

@@ -217,8 +217,8 @@ int misc_register(struct miscdevice * misc)
 		misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
 	dev = MKDEV(MISC_MAJOR, misc->minor);
 
-	misc->this_device = device_create(misc_class, misc->parent, dev,
-					  "%s", misc->name);
+	misc->this_device = device_create_drvdata(misc_class, misc->parent,
+						  dev, NULL, "%s", misc->name);
 	if (IS_ERR(misc->this_device)) {
 		err = PTR_ERR(misc->this_device);
 		goto out;

drivers/char/pcmcia/cm4000_cs.c

@@ -1896,7 +1896,7 @@ static int cm4000_probe(struct pcmcia_device *link)
 		return ret;
 	}
 
-	device_create(cmm_class, NULL, MKDEV(major, i), "cmm%d", i);
+	device_create_drvdata(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i);
 
 	return 0;
 }

drivers/char/pcmcia/cm4040_cs.c

@@ -653,7 +653,8 @@ static int reader_probe(struct pcmcia_device *link)
 		return ret;
 	}
 
-	device_create(cmx_class, NULL, MKDEV(major, i), "cmx%d", i);
+	device_create_drvdata(cmx_class, NULL, MKDEV(major, i), NULL,
+			      "cmx%d", i);
 
 	return 0;
 }

drivers/char/ppdev.c

@@ -752,8 +752,9 @@ static const struct file_operations pp_fops = {
 
 static void pp_attach(struct parport *port)
 {
-	device_create(ppdev_class, port->dev, MKDEV(PP_MAJOR, port->number),
-			"parport%d", port->number);
+	device_create_drvdata(ppdev_class, port->dev,
+			      MKDEV(PP_MAJOR, port->number),
+			      NULL, "parport%d", port->number);
 }
 
 static void pp_detach(struct parport *port)

drivers/char/raw.c

@@ -131,8 +131,8 @@ raw_ioctl(struct inode *inode, struct file *filp,
 static void bind_device(struct raw_config_request *rq)
 {
 	device_destroy(raw_class, MKDEV(RAW_MAJOR, rq->raw_minor));
-	device_create(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor),
-		      "raw%d", rq->raw_minor);
+	device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor),
+			      NULL, "raw%d", rq->raw_minor);
 }
 
 /*
@@ -283,7 +283,8 @@ static int __init raw_init(void)
 		ret = PTR_ERR(raw_class);
 		goto error_region;
 	}
-	device_create(raw_class, NULL, MKDEV(RAW_MAJOR, 0), "rawctl");
+	device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, 0), NULL,
+			      "rawctl");
 
 	return 0;
 

drivers/char/snsc.c

@@ -444,7 +444,8 @@ scdrv_init(void)
 				continue;
 			}
 
-			device_create(snsc_class, NULL, dev, "%s", devname);
+			device_create_drvdata(snsc_class, NULL, dev, NULL,
+					      "%s", devname);
 
 			ia64_sn_irtr_intr_enable(scd->scd_nasid,
 						 0 /*ignored */ ,

drivers/char/stallion.c

@@ -4755,8 +4755,8 @@ static int __init stallion_module_init(void)
 	if (IS_ERR(stallion_class))
 		printk("STALLION: failed to create class\n");
 	for (i = 0; i < 4; i++)
-		device_create(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i),
-			      "staliomem%d", i);
+		device_create_drvdata(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i),
+				      NULL, "staliomem%d", i);
 
 	return 0;
 err_unrtty:

drivers/char/tty_io.c

@@ -3412,7 +3412,7 @@ struct device *tty_register_device(struct tty_driver *driver, unsigned index,
 	else
 		tty_line_name(driver, index, name);
 
-	return device_create(tty_class, device, dev, name);
+	return device_create_drvdata(tty_class, device, dev, NULL, name);
 }
 
 /**
@@ -3690,20 +3690,22 @@ static int __init tty_init(void)
 	if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) ||
 	    register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0)
 		panic("Couldn't register /dev/tty driver\n");
-	device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), "tty");
+	device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), NULL,
+			      "tty");
 
 	cdev_init(&console_cdev, &console_fops);
 	if (cdev_add(&console_cdev, MKDEV(TTYAUX_MAJOR, 1), 1) ||
 	    register_chrdev_region(MKDEV(TTYAUX_MAJOR, 1), 1, "/dev/console") < 0)
 		panic("Couldn't register /dev/console driver\n");
-	device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), "console");
+	device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), NULL,
+			      "console");
 
 #ifdef CONFIG_UNIX98_PTYS
 	cdev_init(&ptmx_cdev, &ptmx_fops);
 	if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
 	    register_chrdev_region(MKDEV(TTYAUX_MAJOR, 2), 1, "/dev/ptmx") < 0)
 		panic("Couldn't register /dev/ptmx driver\n");
-	device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), "ptmx");
+	device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), NULL, "ptmx");
 #endif
 
 #ifdef CONFIG_VT
@@ -3711,7 +3713,7 @@ static int __init tty_init(void)
 	if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) ||
 	    register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0)
 		panic("Couldn't register /dev/tty0 driver\n");
-	device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), "tty0");
+	device_create_drvdata(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0");
 
 	vty_init();
 #endif

drivers/char/vc_screen.c

@@ -481,10 +481,10 @@ static struct class *vc_class;
 
 void vcs_make_sysfs(struct tty_struct *tty)
 {
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1),
-			"vcs%u", tty->index + 1);
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129),
-			"vcsa%u", tty->index + 1);
+	device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1),
+			      NULL, "vcs%u", tty->index + 1);
+	device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129),
+			      NULL, "vcsa%u", tty->index + 1);
 }
 
 void vcs_remove_sysfs(struct tty_struct *tty)
@@ -499,7 +499,7 @@ int __init vcs_init(void)
 		panic("unable to get major %d for vcs device", VCS_MAJOR);
 	vc_class = class_create(THIS_MODULE, "vc");
 
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), "vcs");
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), "vcsa");
+	device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
+	device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
 	return 0;
 }

drivers/char/viotape.c

@@ -886,10 +886,10 @@ static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	state[i].cur_part = 0;
 	for (j = 0; j < MAX_PARTITIONS; ++j)
 		state[i].part_stat_rwi[j] = VIOT_IDLE;
-	device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i),
-			"iseries!vt%d", i);
-	device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80),
-			"iseries!nvt%d", i);
+	device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i),
+			      NULL, "iseries!vt%d", i);
+	device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80),
+			      NULL, "iseries!nvt%d", i);
 	printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries "
 			"resource %10.10s type %4.4s, model %3.3s\n",
 			i, viotape_unitinfo[i].rsrcname,

drivers/char/vt.c

@@ -3425,9 +3425,10 @@ int register_con_driver(const struct consw *csw, int first, int last)
 	if (retval)
 		goto err;
 
-	con_driver->dev = device_create(vtconsole_class, NULL,
-					MKDEV(0, con_driver->node),
-					"vtcon%i", con_driver->node);
+	con_driver->dev = device_create_drvdata(vtconsole_class, NULL,
+						MKDEV(0, con_driver->node),
+						NULL, "vtcon%i",
+						con_driver->node);
 
 	if (IS_ERR(con_driver->dev)) {
 		printk(KERN_WARNING "Unable to create device for %s; "
@@ -3535,9 +3536,10 @@ static int __init vtconsole_class_init(void)
 		struct con_driver *con = &registered_con_driver[i];
 
 		if (con->con && !con->dev) {
-			con->dev = device_create(vtconsole_class, NULL,
-						 MKDEV(0, con->node),
-						 "vtcon%i", con->node);
+			con->dev = device_create_drvdata(vtconsole_class, NULL,
+							 MKDEV(0, con->node),
+							 NULL, "vtcon%i",
+							 con->node);
 
 			if (IS_ERR(con->dev)) {
 				printk(KERN_WARNING "Unable to create "

drivers/char/xilinx_hwicap/xilinx_hwicap.c

@@ -658,8 +658,9 @@ static int __devinit hwicap_setup(struct device *dev, int id,
 		dev_err(dev, "cdev_add() failed\n");
 		goto failed3;
 	}
-	/*  devfs_mk_cdev(devt, S_IFCHR|S_IRUGO|S_IWUGO, DRIVER_NAME); */
-	device_create(icap_class, dev, devt, "%s%d", DRIVER_NAME, id);
+
+	device_create_drvdata(icap_class, dev, devt, NULL,
+			      "%s%d", DRIVER_NAME, id);
 	return 0;		/* success */
 
  failed3:

drivers/cpuidle/sysfs.c

@@ -21,7 +21,8 @@ static int __init cpuidle_sysfs_setup(char *unused)
 }
 __setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup);
 
-static ssize_t show_available_governors(struct sys_device *dev, char *buf)
+static ssize_t show_available_governors(struct sys_device *dev,
+		struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t i = 0;
 	struct cpuidle_governor *tmp;
@@ -39,7 +40,8 @@ out:
 	return i;
 }
 
-static ssize_t show_current_driver(struct sys_device *dev, char *buf)
+static ssize_t show_current_driver(struct sys_device *dev,
+		struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t ret;
 
@@ -53,7 +55,8 @@ static ssize_t show_current_driver(struct sys_device *dev, char *buf)
 	return ret;
 }
 
-static ssize_t show_current_governor(struct sys_device *dev, char *buf)
+static ssize_t show_current_governor(struct sys_device *dev,
+			struct sysdev_attribute *attr, char *buf)
 {
 	ssize_t ret;
 
@@ -68,6 +71,7 @@ static ssize_t show_current_governor(struct sys_device *dev, char *buf)
 }
 
 static ssize_t store_current_governor(struct sys_device *dev,
+	struct sysdev_attribute *attr,
 	const char *buf, size_t count)
 {
 	char gov_name[CPUIDLE_NAME_LEN];

drivers/dca/dca-sysfs.c

@@ -14,8 +14,9 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot)
 {
 	struct device *cd;
 
-	cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1),
-			   "requester%d", slot);
+	cd = device_create_drvdata(dca_class, dca->cd,
+				   MKDEV(0, slot + 1), NULL,
+				   "requester%d", slot);
 	if (IS_ERR(cd))
 		return PTR_ERR(cd);
 	return 0;
@@ -46,7 +47,8 @@ idr_try_again:
 		return err;
 	}
 
-	cd = device_create(dca_class, dev, MKDEV(0, 0), "dca%d", dca->id);
+	cd = device_create_drvdata(dca_class, dev, MKDEV(0, 0), NULL,
+				   "dca%d", dca->id);
 	if (IS_ERR(cd)) {
 		spin_lock(&dca_idr_lock);
 		idr_remove(&dca_idr, dca->id);

drivers/eisa/Makefile

@@ -9,7 +9,7 @@ obj-${CONFIG_EISA_VIRTUAL_ROOT} += virtual_root.o
 
 
 # Ugly hack to get DEVICE_NAME_SIZE value...
-DEVICE_NAME_SIZE =$(shell awk '$$1=="\#define" && $$2=="DEVICE_NAME_SIZE" {print $$3-1}' $(srctree)/include/linux/device.h)
+DEVICE_NAME_SIZE = 50
 
 $(obj)/eisa-bus.o: $(obj)/devlist.h
 

drivers/eisa/eisa-bus.c

@@ -22,7 +22,7 @@
 
 struct eisa_device_info {
 	struct eisa_device_id id;
-	char name[DEVICE_NAME_SIZE];
+	char name[50];
 };
 
 #ifdef CONFIG_EISA_NAMES
@@ -63,7 +63,7 @@ static void __init eisa_name_device (struct eisa_device *edev)
 		if (!strcmp (edev->id.sig, eisa_table[i].id.sig)) {
 			strlcpy (edev->pretty_name,
 				 eisa_table[i].name,
-				 DEVICE_NAME_SIZE);
+				 sizeof(edev->pretty_name));
 			return;
 		}
 	}

drivers/hid/hidraw.c

@@ -322,8 +322,9 @@ int hidraw_connect(struct hid_device *hid)
 		goto out;
 	}
 
-	dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor),
-				"%s%d", "hidraw", minor);
+	dev->dev = device_create_drvdata(hidraw_class, NULL,
+					 MKDEV(hidraw_major, minor), NULL,
+					 "%s%d", "hidraw", minor);
 
 	if (IS_ERR(dev->dev)) {
 		spin_lock(&minors_lock);

drivers/hwmon/hwmon.c

@@ -55,7 +55,8 @@ again:
 		return ERR_PTR(err);
 
 	id = id & MAX_ID_MASK;
-	hwdev = device_create(hwmon_class, dev, MKDEV(0,0), HWMON_ID_FORMAT, id);
+	hwdev = device_create_drvdata(hwmon_class, dev, MKDEV(0, 0), NULL,
+				      HWMON_ID_FORMAT, id);
 
 	if (IS_ERR(hwdev)) {
 		spin_lock(&idr_lock);

drivers/i2c/i2c-core.c

@@ -722,7 +722,8 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
 
 	INIT_LIST_HEAD(&driver->clients);
 	/* Walk the adapters that are already present */
-	class_for_each_device(&i2c_adapter_class, driver, __attach_adapter);
+	class_for_each_device(&i2c_adapter_class, NULL, driver,
+			      __attach_adapter);
 
 	mutex_unlock(&core_lock);
 	return 0;
@@ -782,7 +783,8 @@ void i2c_del_driver(struct i2c_driver *driver)
 {
 	mutex_lock(&core_lock);
 
-	class_for_each_device(&i2c_adapter_class, driver, __detach_adapter);
+	class_for_each_device(&i2c_adapter_class, NULL, driver,
+			      __detach_adapter);
 
 	driver_unregister(&driver->driver);
 	pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name);

drivers/i2c/i2c-dev.c

@@ -521,9 +521,9 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
 		return PTR_ERR(i2c_dev);
 
 	/* register this i2c device with the driver core */
-	i2c_dev->dev = device_create(i2c_dev_class, &adap->dev,
-				     MKDEV(I2C_MAJOR, adap->nr),
-				     "i2c-%d", adap->nr);
+	i2c_dev->dev = device_create_drvdata(i2c_dev_class, &adap->dev,
+					     MKDEV(I2C_MAJOR, adap->nr),
+					     NULL, "i2c-%d", adap->nr);
 	if (IS_ERR(i2c_dev->dev)) {
 		res = PTR_ERR(i2c_dev->dev);
 		goto error;

drivers/ide/ide-tape.c

@@ -2697,10 +2697,12 @@ static int ide_tape_probe(ide_drive_t *drive)
 
 	idetape_setup(drive, tape, minor);
 
-	device_create(idetape_sysfs_class, &drive->gendev,
-		      MKDEV(IDETAPE_MAJOR, minor), "%s", tape->name);
-	device_create(idetape_sysfs_class, &drive->gendev,
-			MKDEV(IDETAPE_MAJOR, minor + 128), "n%s", tape->name);
+	device_create_drvdata(idetape_sysfs_class, &drive->gendev,
+			      MKDEV(IDETAPE_MAJOR, minor), NULL,
+			      "%s", tape->name);
+	device_create_drvdata(idetape_sysfs_class, &drive->gendev,
+			      MKDEV(IDETAPE_MAJOR, minor + 128), NULL,
+			      "n%s", tape->name);
 
 	g->fops = &idetape_block_ops;
 	ide_register_region(g);

drivers/ieee1394/dv1394.c

@@ -2296,9 +2296,10 @@ static void dv1394_add_host(struct hpsb_host *host)
 
 	ohci = (struct ti_ohci *)host->hostdata;
 
-	device_create(hpsb_protocol_class, NULL, MKDEV(
-		IEEE1394_MAJOR,	IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)),
-		"dv1394-%d", id);
+	device_create_drvdata(hpsb_protocol_class, NULL,
+			      MKDEV(IEEE1394_MAJOR,
+				    IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), NULL,
+			      "dv1394-%d", id);
 
 	dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);
 	dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);

drivers/ieee1394/nodemgr.c

@@ -754,7 +754,8 @@ static void nodemgr_remove_uds(struct node_entry *ne)
 	 */
 	mutex_lock(&nodemgr_serialize_remove_uds);
 	for (;;) {
-		dev = class_find_device(&nodemgr_ud_class, ne, __match_ne);
+		dev = class_find_device(&nodemgr_ud_class, NULL, ne,
+					__match_ne);
 		if (!dev)
 			break;
 		ud = container_of(dev, struct unit_directory, unit_dev);
@@ -901,7 +902,8 @@ static struct node_entry *find_entry_by_guid(u64 guid)
 	struct device *dev;
 	struct node_entry *ne;
 
-	dev = class_find_device(&nodemgr_ne_class, &guid, __match_ne_guid);
+	dev = class_find_device(&nodemgr_ne_class, NULL, &guid,
+				__match_ne_guid);
 	if (!dev)
 		return NULL;
 	ne = container_of(dev, struct node_entry, node_dev);
@@ -940,7 +942,8 @@ static struct node_entry *find_entry_by_nodeid(struct hpsb_host *host,
 	param.host = host;
 	param.nodeid = nodeid;
 
-	dev = class_find_device(&nodemgr_ne_class, &param, __match_ne_nodeid);
+	dev = class_find_device(&nodemgr_ne_class, NULL, &param,
+				__match_ne_nodeid);
 	if (!dev)
 		return NULL;
 	ne = container_of(dev, struct node_entry, node_dev);
@@ -1453,7 +1456,8 @@ static void nodemgr_suspend_ne(struct node_entry *ne)
 	ne->in_limbo = 1;
 	WARN_ON(device_create_file(&ne->device, &dev_attr_ne_in_limbo));
 
-	class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_suspend);
+	class_for_each_device(&nodemgr_ud_class, NULL, ne,
+			      __nodemgr_driver_suspend);
 }
 
 
@@ -1462,7 +1466,8 @@ static void nodemgr_resume_ne(struct node_entry *ne)
 	ne->in_limbo = 0;
 	device_remove_file(&ne->device, &dev_attr_ne_in_limbo);
 
-	class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_resume);
+	class_for_each_device(&nodemgr_ud_class, NULL, ne,
+			      __nodemgr_driver_resume);
 	HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "]  GUID[%016Lx]",
 		   NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid);
 }
@@ -1498,7 +1503,8 @@ static int __nodemgr_update_pdrv(struct device *dev, void *data)
 
 static void nodemgr_update_pdrv(struct node_entry *ne)
 {
-	class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_update_pdrv);
+	class_for_each_device(&nodemgr_ud_class, NULL, ne,
+			      __nodemgr_update_pdrv);
 }
 
 
@@ -1591,7 +1597,8 @@ static void nodemgr_node_probe(struct host_info *hi, int generation)
 	 * while probes are time-consuming. (Well, those probes need some
 	 * improvement...) */
 
-	class_for_each_device(&nodemgr_ne_class, &param, __nodemgr_node_probe);
+	class_for_each_device(&nodemgr_ne_class, NULL, &param,
+			      __nodemgr_node_probe);
 
 	/* If we had a bus reset while we were scanning the bus, it is
 	 * possible that we did not probe all nodes.  In that case, we
@@ -1826,7 +1833,7 @@ int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *))
 
 	hip.cb = cb;
 	hip.data = data;
-	error = class_for_each_device(&hpsb_host_class, &hip,
+	error = class_for_each_device(&hpsb_host_class, NULL, &hip,
 				      __nodemgr_for_each_host);
 
 	return error;

drivers/ieee1394/raw1394.c

@@ -3010,10 +3010,10 @@ static int __init init_raw1394(void)
 	hpsb_register_highlevel(&raw1394_highlevel);
 
 	if (IS_ERR
-	    (device_create(
+	    (device_create_drvdata(
 	      hpsb_protocol_class, NULL,
 	      MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
-	      RAW1394_DEVICE_NAME))) {
+	      NULL, RAW1394_DEVICE_NAME))) {
 		ret = -EFAULT;
 		goto out_unreg;
 	}

drivers/ieee1394/video1394.c

@@ -1341,9 +1341,9 @@ static void video1394_add_host (struct hpsb_host *host)
 	hpsb_set_hostinfo_key(&video1394_highlevel, host, ohci->host->id);
 
 	minor = IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id;
-	device_create(hpsb_protocol_class, NULL,
-		      MKDEV(IEEE1394_MAJOR, minor),
-		      "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+	device_create_drvdata(hpsb_protocol_class, NULL,
+			      MKDEV(IEEE1394_MAJOR, minor), NULL,
+			      "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
 }
 
 

drivers/infiniband/core/cm.c

@@ -44,6 +44,7 @@
 #include <linux/spinlock.h>
 #include <linux/sysfs.h>
 #include <linux/workqueue.h>
+#include <linux/kdev_t.h>
 
 #include <rdma/ib_cache.h>
 #include <rdma/ib_cm.h>
@@ -162,8 +163,8 @@ struct cm_port {
 
 struct cm_device {
 	struct list_head list;
-	struct ib_device *device;
-	struct kobject dev_obj;
+	struct ib_device *ib_device;
+	struct device *device;
 	u8 ack_delay;
 	struct cm_port *port[0];
 };
@@ -339,7 +340,7 @@ static void cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
 {
 	av->port = port;
 	av->pkey_index = wc->pkey_index;
-	ib_init_ah_from_wc(port->cm_dev->device, port->port_num, wc,
+	ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc,
 			   grh, &av->ah_attr);
 }
 
@@ -353,7 +354,7 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av)
 
 	read_lock_irqsave(&cm.device_lock, flags);
 	list_for_each_entry(cm_dev, &cm.device_list, list) {
-		if (!ib_find_cached_gid(cm_dev->device, &path->sgid,
+		if (!ib_find_cached_gid(cm_dev->ib_device, &path->sgid,
 					&p, NULL)) {
 			port = cm_dev->port[p-1];
 			break;
@@ -364,13 +365,13 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av)
 	if (!port)
 		return -EINVAL;
 
-	ret = ib_find_cached_pkey(cm_dev->device, port->port_num,
+	ret = ib_find_cached_pkey(cm_dev->ib_device, port->port_num,
 				  be16_to_cpu(path->pkey), &av->pkey_index);
 	if (ret)
 		return ret;
 
 	av->port = port;
-	ib_init_ah_from_path(cm_dev->device, port->port_num, path,
+	ib_init_ah_from_path(cm_dev->ib_device, port->port_num, path,
 			     &av->ah_attr);
 	av->timeout = path->packet_life_time + 1;
 	return 0;
@@ -1515,7 +1516,7 @@ static int cm_req_handler(struct cm_work *work)
 
 	req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad;
 
-	cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL);
+	cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL);
 	if (IS_ERR(cm_id))
 		return PTR_ERR(cm_id);
 
@@ -1550,7 +1551,7 @@ static int cm_req_handler(struct cm_work *work)
 	cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]);
 	ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av);
 	if (ret) {
-		ib_get_cached_gid(work->port->cm_dev->device,
+		ib_get_cached_gid(work->port->cm_dev->ib_device,
 				  work->port->port_num, 0, &work->path[0].sgid);
 		ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID,
 			       &work->path[0].sgid, sizeof work->path[0].sgid,
@@ -2950,7 +2951,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
 	struct cm_sidr_req_msg *sidr_req_msg;
 	struct ib_wc *wc;
 
-	cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL);
+	cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL);
 	if (IS_ERR(cm_id))
 		return PTR_ERR(cm_id);
 	cm_id_priv = container_of(cm_id, struct cm_id_private, id);
@@ -3578,7 +3579,7 @@ static void cm_get_ack_delay(struct cm_device *cm_dev)
 {
 	struct ib_device_attr attr;
 
-	if (ib_query_device(cm_dev->device, &attr))
+	if (ib_query_device(cm_dev->ib_device, &attr))
 		cm_dev->ack_delay = 0; /* acks will rely on packet life time */
 	else
 		cm_dev->ack_delay = attr.local_ca_ack_delay;
@@ -3618,18 +3619,6 @@ static struct kobj_type cm_port_obj_type = {
 	.release = cm_release_port_obj
 };
 
-static void cm_release_dev_obj(struct kobject *obj)
-{
-	struct cm_device *cm_dev;
-
-	cm_dev = container_of(obj, struct cm_device, dev_obj);
-	kfree(cm_dev);
-}
-
-static struct kobj_type cm_dev_obj_type = {
-	.release = cm_release_dev_obj
-};
-
 struct class cm_class = {
 	.name    = "infiniband_cm",
 };
@@ -3640,7 +3629,7 @@ static int cm_create_port_fs(struct cm_port *port)
 	int i, ret;
 
 	ret = kobject_init_and_add(&port->port_obj, &cm_port_obj_type,
-				   &port->cm_dev->dev_obj,
+				   &port->cm_dev->device->kobj,
 				   "%d", port->port_num);
 	if (ret) {
 		kfree(port);
@@ -3676,7 +3665,7 @@ static void cm_remove_port_fs(struct cm_port *port)
 	kobject_put(&port->port_obj);
 }
 
-static void cm_add_one(struct ib_device *device)
+static void cm_add_one(struct ib_device *ib_device)
 {
 	struct cm_device *cm_dev;
 	struct cm_port *port;
@@ -3691,26 +3680,27 @@ static void cm_add_one(struct ib_device *device)
 	int ret;
 	u8 i;
 
-	if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
+	if (rdma_node_get_transport(ib_device->node_type) != RDMA_TRANSPORT_IB)
 		return;
 
 	cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) *
-			 device->phys_port_cnt, GFP_KERNEL);
+			 ib_device->phys_port_cnt, GFP_KERNEL);
 	if (!cm_dev)
 		return;
 
-	cm_dev->device = device;
+	cm_dev->ib_device = ib_device;
 	cm_get_ack_delay(cm_dev);
 
-	ret = kobject_init_and_add(&cm_dev->dev_obj, &cm_dev_obj_type,
-				   &cm_class.subsys.kobj, "%s", device->name);
-	if (ret) {
+	cm_dev->device = device_create_drvdata(&cm_class, &ib_device->dev,
+					       MKDEV(0, 0), NULL,
+					       "%s", ib_device->name);
+	if (!cm_dev->device) {
 		kfree(cm_dev);
 		return;
 	}
 
 	set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask);
-	for (i = 1; i <= device->phys_port_cnt; i++) {
+	for (i = 1; i <= ib_device->phys_port_cnt; i++) {
 		port = kzalloc(sizeof *port, GFP_KERNEL);
 		if (!port)
 			goto error1;
@@ -3723,7 +3713,7 @@ static void cm_add_one(struct ib_device *device)
 		if (ret)
 			goto error1;
 
-		port->mad_agent = ib_register_mad_agent(device, i,
+		port->mad_agent = ib_register_mad_agent(ib_device, i,
 							IB_QPT_GSI,
 							&reg_req,
 							0,
@@ -3733,11 +3723,11 @@ static void cm_add_one(struct ib_device *device)
 		if (IS_ERR(port->mad_agent))
 			goto error2;
 
-		ret = ib_modify_port(device, i, 0, &port_modify);
+		ret = ib_modify_port(ib_device, i, 0, &port_modify);
 		if (ret)
 			goto error3;
 	}
-	ib_set_client_data(device, &cm_client, cm_dev);
+	ib_set_client_data(ib_device, &cm_client, cm_dev);
 
 	write_lock_irqsave(&cm.device_lock, flags);
 	list_add_tail(&cm_dev->list, &cm.device_list);
@@ -3753,14 +3743,14 @@ error1:
 	port_modify.clr_port_cap_mask = IB_PORT_CM_SUP;
 	while (--i) {
 		port = cm_dev->port[i-1];
-		ib_modify_port(device, port->port_num, 0, &port_modify);
+		ib_modify_port(ib_device, port->port_num, 0, &port_modify);
 		ib_unregister_mad_agent(port->mad_agent);
 		cm_remove_port_fs(port);
 	}
-	kobject_put(&cm_dev->dev_obj);
+	device_unregister(cm_dev->device);
 }
 
-static void cm_remove_one(struct ib_device *device)
+static void cm_remove_one(struct ib_device *ib_device)
 {
 	struct cm_device *cm_dev;
 	struct cm_port *port;
@@ -3770,7 +3760,7 @@ static void cm_remove_one(struct ib_device *device)
 	unsigned long flags;
 	int i;
 
-	cm_dev = ib_get_client_data(device, &cm_client);
+	cm_dev = ib_get_client_data(ib_device, &cm_client);
 	if (!cm_dev)
 		return;
 
@@ -3778,14 +3768,14 @@ static void cm_remove_one(struct ib_device *device)
 	list_del(&cm_dev->list);
 	write_unlock_irqrestore(&cm.device_lock, flags);
 
-	for (i = 1; i <= device->phys_port_cnt; i++) {
+	for (i = 1; i <= ib_device->phys_port_cnt; i++) {
 		port = cm_dev->port[i-1];
-		ib_modify_port(device, port->port_num, 0, &port_modify);
+		ib_modify_port(ib_device, port->port_num, 0, &port_modify);
 		ib_unregister_mad_agent(port->mad_agent);
 		flush_workqueue(cm.wq);
 		cm_remove_port_fs(port);
 	}
-	kobject_put(&cm_dev->dev_obj);
+	device_unregister(cm_dev->device);
 }
 
 static int __init ib_cm_init(void)

drivers/infiniband/hw/ipath/ipath_file_ops.c

@@ -2455,7 +2455,7 @@ static int init_cdev(int minor, char *name, const struct file_operations *fops,
 		goto err_cdev;
 	}
 
-	device = device_create(ipath_class, NULL, dev, name);
+	device = device_create_drvdata(ipath_class, NULL, dev, NULL, name);
 
 	if (IS_ERR(device)) {
 		ret = PTR_ERR(device);

drivers/isdn/capi/capi.c

@@ -1553,7 +1553,8 @@ static int __init capi_init(void)
 		return PTR_ERR(capi_class);
 	}
 
-	device_create(capi_class, NULL, MKDEV(capi_major, 0), "capi");
+	device_create_drvdata(capi_class, NULL, MKDEV(capi_major, 0), NULL,
+			      "capi");
 
 #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
 	if (capinc_tty_init() < 0) {

drivers/macintosh/adb.c

@@ -862,7 +862,8 @@ adbdev_init(void)
 	adb_dev_class = class_create(THIS_MODULE, "adb");
 	if (IS_ERR(adb_dev_class))
 		return;
-	device_create(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), "adb");
+	device_create_drvdata(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), NULL,
+			      "adb");
 
 	platform_device_register(&adb_pfdev);
 	platform_driver_probe(&adb_pfdrv, adb_dummy_probe);

drivers/mca/mca-bus.c

@@ -40,7 +40,7 @@ static struct mca_bus *mca_root_busses[MAX_MCA_BUSSES];
 
 struct mca_device_info {
 	short pos_id;		/* the 2 byte pos id for this card */
-	char name[DEVICE_NAME_SIZE];
+	char name[50];
 };
 
 static int mca_bus_match (struct device *dev, struct device_driver *drv)

drivers/media/dvb/dvb-core/dvbdev.c

@@ -233,9 +233,9 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 
 	mutex_unlock(&dvbdev_register_lock);
 
-	clsdev = device_create(dvb_class, adap->device,
+	clsdev = device_create_drvdata(dvb_class, adap->device,
 			       MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)),
-			       "dvb%d.%s%d", adap->num, dnames[type], id);
+			       NULL, "dvb%d.%s%d", adap->num, dnames[type], id);
 	if (IS_ERR(clsdev)) {
 		printk(KERN_ERR "%s: failed to create device dvb%d.%s%d (%ld)\n",
 		       __func__, adap->num, dnames[type], id, PTR_ERR(clsdev));

drivers/memstick/host/jmb38x_ms.c

@@ -51,7 +51,7 @@ struct jmb38x_ms_host {
 	void __iomem            *addr;
 	spinlock_t              lock;
 	int                     id;
-	char                    host_id[DEVICE_ID_SIZE];
+	char                    host_id[32];
 	int                     irq;
 	unsigned int            block_pos;
 	unsigned long           timeout_jiffies;
@@ -781,7 +781,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt)
 
 	spin_lock_init(&host->lock);
 	host->id = cnt;
-	snprintf(host->host_id, DEVICE_ID_SIZE, DRIVER_NAME ":slot%d",
+	snprintf(host->host_id, sizeof(host->host_id), DRIVER_NAME ":slot%d",
 		 host->id);
 	host->irq = jm->pdev->irq;
 	host->timeout_jiffies = msecs_to_jiffies(1000);

drivers/message/fusion/mptbase.c

@@ -1670,7 +1670,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work);
 	spin_lock_init(&ioc->fault_reset_work_lock);
 
-	snprintf(ioc->reset_work_q_name, KOBJ_NAME_LEN, "mpt_poll_%d", ioc->id);
+	snprintf(ioc->reset_work_q_name, sizeof(ioc->reset_work_q_name),
+		 "mpt_poll_%d", ioc->id);
 	ioc->reset_work_q =
 		create_singlethread_workqueue(ioc->reset_work_q_name);
 	if (!ioc->reset_work_q) {

drivers/message/fusion/mptbase.h

@@ -707,12 +707,12 @@ typedef struct _MPT_ADAPTER
 	u8			 fc_link_speed[2];
 	spinlock_t		 fc_rescan_work_lock;
 	struct work_struct	 fc_rescan_work;
-	char			 fc_rescan_work_q_name[KOBJ_NAME_LEN];
+	char			 fc_rescan_work_q_name[20];
 	struct workqueue_struct *fc_rescan_work_q;
 	struct scsi_cmnd	**ScsiLookup;
 	spinlock_t		  scsi_lookup_lock;
 
-	char			 reset_work_q_name[KOBJ_NAME_LEN];
+	char			 reset_work_q_name[20];
 	struct workqueue_struct *reset_work_q;
 	struct delayed_work	 fault_reset_work;
 	spinlock_t		 fault_reset_work_lock;

drivers/message/fusion/mptfc.c

@@ -1326,8 +1326,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	/* initialize workqueue */
 
-	snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d",
-		sh->host_no);
+	snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
+		 "mptfc_wq_%d", sh->host_no);
 	ioc->fc_rescan_work_q =
 		create_singlethread_workqueue(ioc->fc_rescan_work_q_name);
 	if (!ioc->fc_rescan_work_q)