Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (38 commits)
  mm: memory hotplug: Check if pages are correctly reserved on a per-section basis
  Revert "memory hotplug: Correct page reservation checking"
  Update email address for stable patch submission
  dynamic_debug: fix undefined reference to `__netdev_printk'
  dynamic_debug: use a single printk() to emit messages
  dynamic_debug: remove num_enabled accounting
  dynamic_debug: consolidate repetitive struct _ddebug descriptor definitions
  uio: Support physical addresses >32 bits on 32-bit systems
  sysfs: add unsigned long cast to prevent compile warning
  drivers: base: print rejected matches with DEBUG_DRIVER
  memory hotplug: Correct page reservation checking
  memory hotplug: Refuse to add unaligned memory regions
  remove the messy code file Documentation/zh_CN/SubmitChecklist
  ARM: mxc: convert device creation to use platform_device_register_full
  new helper to create platform devices with dma mask
  docs/driver-model: Update device class docs
  docs/driver-model: Document device.groups
  kobj_uevent: Ignore if some listeners cannot handle message
  dynamic_debug: make netif_dbg() call __netdev_printk()
  dynamic_debug: make netdev_dbg() call __netdev_printk()
  ...

Documentation/DocBook/uio-howto.tmpl

@@ -529,7 +529,7 @@ memory (e.g. allocated with <function>kmalloc()</function>). There's also
 </para></listitem>
 
 <listitem><para>
-<varname>unsigned long addr</varname>: Required if the mapping is used.
+<varname>phys_addr_t addr</varname>: Required if the mapping is used.
 Fill in the address of your memory block. This address is the one that
 appears in sysfs.
 </para></listitem>

Documentation/driver-model/binding.txt

@@ -48,10 +48,6 @@ devclass_add_device is called to enumerate the device within the class
 and actually register it with the class, which happens with the
 class's register_dev callback.
 
-NOTE: The device class structures and core routines to manipulate them
-are not in the mainline kernel, so the discussion is still a bit
-speculative. 
-
 
 Driver
 ~~~~~~

Documentation/driver-model/device.txt

@@ -45,33 +45,52 @@ struct device_attribute {
 			 const char *buf, size_t count);
 };
 
-Attributes of devices can be exported via drivers using a simple
-procfs-like interface. 
+Attributes of devices can be exported by a device driver through sysfs.
 
 Please see Documentation/filesystems/sysfs.txt for more information
 on how sysfs works.
 
+As explained in Documentation/kobject.txt, device attributes must be be
+created before the KOBJ_ADD uevent is generated. The only way to realize
+that is by defining an attribute group.
+
 Attributes are declared using a macro called DEVICE_ATTR:
 
 #define DEVICE_ATTR(name,mode,show,store)
 
 Example:
 
-DEVICE_ATTR(power,0644,show_power,store_power);
+static DEVICE_ATTR(type, 0444, show_type, NULL);
+static DEVICE_ATTR(power, 0644, show_power, store_power);
 
-This declares a structure of type struct device_attribute named
-'dev_attr_power'. This can then be added and removed to the device's
-directory using:
+This declares two structures of type struct device_attribute with respective
+names 'dev_attr_type' and 'dev_attr_power'. These two attributes can be
+organized as follows into a group:
 
-int device_create_file(struct device *device, struct device_attribute * entry);
-void device_remove_file(struct device * dev, struct device_attribute * attr);
+static struct attribute *dev_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_power.attr,
+	NULL,
+};
 
-Example:
+static struct attribute_group dev_attr_group = {
+	.attrs = dev_attrs,
+};
+
+static const struct attribute_group *dev_attr_groups[] = {
+	&dev_attr_group,
+	NULL,
+};
+
+This array of groups can then be associated with a device by setting the
+group pointer in struct device before device_register() is invoked:
 
-device_create_file(dev,&dev_attr_power);
-device_remove_file(dev,&dev_attr_power);
+      dev->groups = dev_attr_groups;
+      device_register(dev);
 
-The file name will be 'power' with a mode of 0644 (-rw-r--r--).
+The device_register() function will use the 'groups' pointer to create the
+device attributes and the device_unregister() function will use this pointer
+to remove the device attributes.
 
 Word of warning:  While the kernel allows device_create_file() and
 device_remove_file() to be called on a device at any time, userspace has
@@ -84,24 +103,4 @@ not know about the new attributes.
 This is important for device driver that need to publish additional
 attributes for a device at driver probe time.  If the device driver simply
 calls device_create_file() on the device structure passed to it, then
-userspace will never be notified of the new attributes.  Instead, it should
-probably use class_create() and class->dev_attrs to set up a list of
-desired attributes in the modules_init function, and then in the .probe()
-hook, and then use device_create() to create a new device as a child
-of the probed device.  The new device will generate a new uevent and
-properly advertise the new attributes to userspace.
-
-For example, if a driver wanted to add the following attributes:
-struct device_attribute mydriver_attribs[] = {
-	__ATTR(port_count, 0444, port_count_show),
-	__ATTR(serial_number, 0444, serial_number_show),
-	NULL
-};
-
-Then in the module init function is would do:
-	mydriver_class = class_create(THIS_MODULE, "my_attrs");
-	mydriver_class.dev_attr = mydriver_attribs;
-
-And assuming 'dev' is the struct device passed into the probe hook, the driver
-probe function would do something like:
-	device_create(&mydriver_class, dev, chrdev, &private_data, "my_name");
+userspace will never be notified of the new attributes.

Documentation/filesystems/sysfs.txt

@@ -4,7 +4,7 @@ sysfs - _The_ filesystem for exporting kernel objects.
 Patrick Mochel	<mochel@osdl.org>
 Mike Murphy <mamurph@cs.clemson.edu>
 
-Revised:    15 July 2010
+Revised:    16 August 2011
 Original:   10 January 2003
 
 
@@ -370,3 +370,11 @@ int driver_create_file(struct device_driver *, const struct driver_attribute *);
 void driver_remove_file(struct device_driver *, const struct driver_attribute *);
 
 
+Documentation
+~~~~~~~~~~~~~
+
+The sysfs directory structure and the attributes in each directory define an
+ABI between the kernel and user space. As for any ABI, it is important that
+this ABI is stable and properly documented. All new sysfs attributes must be
+documented in Documentation/ABI. See also Documentation/ABI/README for more
+information.

Documentation/stable_kernel_rules.txt

@@ -24,10 +24,10 @@ Rules on what kind of patches are accepted, and which ones are not, into the
 Procedure for submitting patches to the -stable tree:
 
  - Send the patch, after verifying that it follows the above rules, to
-   stable@kernel.org.  You must note the upstream commit ID in the changelog
-   of your submission.
+   stable@vger.kernel.org.  You must note the upstream commit ID in the
+   changelog of your submission.
  - To have the patch automatically included in the stable tree, add the tag
-     Cc: stable@kernel.org
+     Cc: stable@vger.kernel.org
    in the sign-off area. Once the patch is merged it will be applied to
    the stable tree without anything else needing to be done by the author
    or subsystem maintainer.
@@ -35,10 +35,10 @@ Procedure for submitting patches to the -stable tree:
    cherry-picked than this can be specified in the following format in
    the sign-off area:
 
-     Cc: <stable@kernel.org> # .32.x: a1f84a3: sched: Check for idle
-     Cc: <stable@kernel.org> # .32.x: 1b9508f: sched: Rate-limit newidle
-     Cc: <stable@kernel.org> # .32.x: fd21073: sched: Fix affinity logic
-     Cc: <stable@kernel.org> # .32.x
+     Cc: <stable@vger.kernel.org> # .32.x: a1f84a3: sched: Check for idle
+     Cc: <stable@vger.kernel.org> # .32.x: 1b9508f: sched: Rate-limit newidle
+     Cc: <stable@vger.kernel.org> # .32.x: fd21073: sched: Fix affinity logic
+     Cc: <stable@vger.kernel.org> # .32.x
     Signed-off-by: Ingo Molnar <mingo@elte.hu>
 
    The tag sequence has the meaning of:

Documentation/zh_CN/SubmitChecklist

-Chinese translated version of Documentation/SubmitChecklist
-
-If you have any comment or update to the content, please contact the
-original document maintainer directly.  However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help.  Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
-
-Chinese maintainer: Harry Wei <harryxiyou@gmail.com>
----------------------------------------------------------------------
-Documentation/SubmitChecklist 的中文翻译
-
-如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
-交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
-译存在问题，请联系中文版维护者。
-
-中文版维护者： 贾威威 Harry Wei <harryxiyou@gmail.com>
-中文版翻译者： 贾威威 Harry Wei <harryxiyou@gmail.com>
-中文版校译者： 贾威威 Harry Wei <harryxiyou@gmail.com>
-
-
-以下为正文
----------------------------------------------------------------------
-Linux内核提交清单
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-这里有一些内核开发者应该做的基本事情，如果他们想看到自己的内核补丁提交
-被接受的更快。
-
-这些都是超出Documentation/SubmittingPatches文档里所提供的以及其他
-关于提交Linux内核补丁的说明。
-
-1：如果你使用了一个功能那么就#include定义/声明那个功能的那个文件。
-   不要依靠其他间接引入定义/声明那个功能的头文件。
-
-2：构建简洁适用或者更改CONFIG选项 =y，=m，或者=n。
-   不要有编译警告/错误， 不要有链接警告/错误。
-
-2b：通过 allnoconfig, allmodconfig
-
-2c：当使用 0=builddir 成功地构建
-
-3：通过使用本地交叉编译工具或者其他一些构建产所，在多CPU框架上构建。
-
-4：ppc64 是一个很好的检查交叉编译的框架，因为它往往把‘unsigned long’
-   当64位值来使用。
-
-5：按照Documentation/CodingStyle文件里的详细描述，检查你补丁的整体风格。
-   使用补丁风格检查琐碎的违规(scripts/checkpatch.pl)，审核员优先提交。
-   你应该调整遗留在你补丁中的所有违规。
-
-6：任何更新或者改动CONFIG选项都不能打乱配置菜单。
-
-7：所有的Kconfig选项更新都要有说明文字。
-
-8：已经认真地总结了相关的Kconfig组合。这是很难通过测试做好的--脑力在这里下降。
-
-9：检查具有简洁性。
-
-10：使用'make checkstack'和'make namespacecheck'检查，然后修改所找到的问题。
-    注意：堆栈检查不会明确地出现问题，但是任何的一个函数在堆栈上使用多于512字节
-    都要准备修改。
-
-11：包含kernel-doc到全局内核APIs文件。（不要求静态的函数，但是包含也无所谓。）
-    使用'make htmldocs'或者'make mandocs'来检查kernel-doc，然后修改任何
-    发现的问题。
-
-12：已经通过CONFIG_PREEMPT, CONFIG_DEBUG_PREEMPT,
-    CONFIG_DEBUG_SLAB, CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_MUTEXES,
-    CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_ATOMIC_SLEEP测试，并且同时都
-    使能。
-
-13：已经都构建并且使用或者不使用 CONFIG_SMP 和 CONFIG_PREEMPT测试执行时间。
-
-14：如果补丁影响IO/Disk，等等：已经通过使用或者不使用 CONFIG_LBDAF 测试。
-
-15：所有的codepaths已经行使所有lockdep启用功能。
-
-16：所有的/proc记录更新都要作成文件放在Documentation/目录下。
-
-17：所有的内核启动参数更新都被记录到Documentation/kernel-parameters.txt文件中。
-
-18：所有的模块参数更新都用MODULE_PARM_DESC()记录。
-
-19：所有的用户空间接口更新都被记录到Documentation/ABI/。查看Documentation/ABI/README
-    可以获得更多的信息。改变用户空间接口的补丁应该被邮件抄送给linux-api@vger.kernel.org。
-
-20：检查它是不是都通过`make headers_check'。
-
-21：已经通过至少引入slab和page-allocation失败检查。查看Documentation/fault-injection/。
-
-22：新加入的源码已经通过`gcc -W'（使用"make EXTRA_CFLAGS=-W"）编译。这样将产生很多烦恼，
-    但是对于寻找漏洞很有益处，例如:"warning: comparison between signed and unsigned"。
-
-23：当它被合并到-mm补丁集后再测试，用来确定它是否还和补丁队列中的其他补丁一起工作以及在VM，VFS
-    和其他子系统中各个变化。
-
-24：所有的内存屏障{e.g., barrier(), rmb(), wmb()}需要在源代码中的一个注释来解释他们都是干什么的
-    以及原因。
-
-25：如果有任何输入输出控制的补丁被添加，也要更新Documentation/ioctl/ioctl-number.txt。
-
-26：如果你的更改代码依靠或者使用任何的内核APIs或者与下面的kconfig符号有关系的功能，你就要
-    使用相关的kconfig符号关闭， and/or =m（如果选项提供）[在同一时间不是所用的都启用，仅仅各个或者自由
-    组合他们]：
-
-    CONFIG_SMP, CONFIG_SYSFS, CONFIG_PROC_FS, CONFIG_INPUT, CONFIG_PCI,
-    CONFIG_BLOCK, CONFIG_PM, CONFIG_HOTPLUG, CONFIG_MAGIC_SYSRQ,
-    CONFIG_NET, CONFIG_INET=n (后一个使用 CONFIG_NET=y)

MAINTAINERS

@@ -2294,6 +2294,12 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/wan/dscc4.c
 
+DYNAMIC DEBUG
+M:	Jason Baron <jbaron@redhat.com>
+S:	Maintained
+F:	lib/dynamic_debug.c
+F:	include/linux/dynamic_debug.h
+
 DZ DECSTATION DZ11 SERIAL DRIVER
 M:	"Maciej W. Rozycki" <macro@linux-mips.org>
 S:	Maintained

arch/arm/plat-mxc/devices.c

@@ -37,59 +37,6 @@ int __init mxc_register_device(struct platform_device *pdev, void *data)
 	return ret;
 }
 
-struct platform_device *__init imx_add_platform_device_dmamask(
-		const char *name, int id,
-		const struct resource *res, unsigned int num_resources,
-		const void *data, size_t size_data, u64 dmamask)
-{
-	int ret = -ENOMEM;
-	struct platform_device *pdev;
-
-	pdev = platform_device_alloc(name, id);
-	if (!pdev)
-		goto err;
-
-	if (dmamask) {
-		/*
-		 * This memory isn't freed when the device is put,
-		 * I don't have a nice idea for that though.  Conceptually
-		 * dma_mask in struct device should not be a pointer.
-		 * See http://thread.gmane.org/gmane.linux.kernel.pci/9081
-		 */
-		pdev->dev.dma_mask =
-			kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
-		if (!pdev->dev.dma_mask)
-			/* ret is still -ENOMEM; */
-			goto err;
-
-		*pdev->dev.dma_mask = dmamask;
-		pdev->dev.coherent_dma_mask = dmamask;
-	}
-
-	if (res) {
-		ret = platform_device_add_resources(pdev, res, num_resources);
-		if (ret)
-			goto err;
-	}
-
-	if (data) {
-		ret = platform_device_add_data(pdev, data, size_data);
-		if (ret)
-			goto err;
-	}
-
-	ret = platform_device_add(pdev);
-	if (ret) {
-err:
-		if (dmamask)
-			kfree(pdev->dev.dma_mask);
-		platform_device_put(pdev);
-		return ERR_PTR(ret);
-	}
-
-	return pdev;
-}
-
 struct device mxc_aips_bus = {
 	.init_name	= "mxc_aips",
 	.parent		= &platform_bus,

arch/arm/plat-mxc/include/mach/devices-common.h

@@ -14,10 +14,22 @@
 extern struct device mxc_aips_bus;
 extern struct device mxc_ahb_bus;
 
-struct platform_device *imx_add_platform_device_dmamask(
+static inline struct platform_device *imx_add_platform_device_dmamask(
 		const char *name, int id,
 		const struct resource *res, unsigned int num_resources,
-		const void *data, size_t size_data, u64 dmamask);
+		const void *data, size_t size_data, u64 dmamask)
+{
+	struct platform_device_info pdevinfo = {
+		.name = name,
+		.id = id,
+		.res = res,
+		.num_res = num_resources,
+		.data = data,
+		.size_data = size_data,
+		.dma_mask = dmamask,
+	};
+	return platform_device_register_full(&pdevinfo);
+}
 
 static inline struct platform_device *imx_add_platform_device(
 		const char *name, int id,

drivers/base/core.c

@@ -1764,8 +1764,8 @@ void device_shutdown(void)
 
 #ifdef CONFIG_PRINTK
 
-static int __dev_printk(const char *level, const struct device *dev,
-			struct va_format *vaf)
+int __dev_printk(const char *level, const struct device *dev,
+		 struct va_format *vaf)
 {
 	if (!dev)
 		return printk("%s(NULL device *): %pV", level, vaf);
@@ -1773,6 +1773,7 @@ static int __dev_printk(const char *level, const struct device *dev,
 	return printk("%s%s %s: %pV",
 		      level, dev_driver_string(dev), dev_name(dev), vaf);
 }
+EXPORT_SYMBOL(__dev_printk);
 
 int dev_printk(const char *level, const struct device *dev,
 	       const char *fmt, ...)

drivers/base/dd.c

@@ -147,6 +147,9 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 		printk(KERN_WARNING
 		       "%s: probe of %s failed with error %d\n",
 		       drv->name, dev_name(dev), ret);
+	} else {
+		pr_debug("%s: probe of %s rejects match %d\n",
+		       drv->name, dev_name(dev), ret);
 	}
 	/*
 	 * Ignore errors returned by ->probe so that the next driver can try

drivers/base/memory.c

@@ -223,6 +223,42 @@ int memory_isolate_notify(unsigned long val, void *v)
 	return atomic_notifier_call_chain(&memory_isolate_chain, val, v);
 }
 
+/*
+ * The probe routines leave the pages reserved, just as the bootmem code does.
+ * Make sure they're still that way.
+ */
+static bool pages_correctly_reserved(unsigned long start_pfn,
+					unsigned long nr_pages)
+{
+	int i, j;
+	struct page *page;
+	unsigned long pfn = start_pfn;
+
+	/*
+	 * memmap between sections is not contiguous except with
+	 * SPARSEMEM_VMEMMAP. We lookup the page once per section
+	 * and assume memmap is contiguous within each section
+	 */
+	for (i = 0; i < sections_per_block; i++, pfn += PAGES_PER_SECTION) {
+		if (WARN_ON_ONCE(!pfn_valid(pfn)))
+			return false;
+		page = pfn_to_page(pfn);
+
+		for (j = 0; j < PAGES_PER_SECTION; j++) {
+			if (PageReserved(page + j))
+				continue;
+
+			printk(KERN_WARNING "section number %ld page number %d "
+				"not reserved, was it already online?\n",
+				pfn_to_section_nr(pfn), j);
+
+			return false;
+		}
+	}
+
+	return true;
+}
+
 /*
  * MEMORY_HOTPLUG depends on SPARSEMEM in mm/Kconfig, so it is
  * OK to have direct references to sparsemem variables in here.
@@ -230,7 +266,6 @@ int memory_isolate_notify(unsigned long val, void *v)
 static int
 memory_block_action(unsigned long phys_index, unsigned long action)
 {
-	int i;
 	unsigned long start_pfn, start_paddr;
 	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
 	struct page *first_page;
@@ -238,26 +273,13 @@ memory_block_action(unsigned long phys_index, unsigned long action)
 
 	first_page = pfn_to_page(phys_index << PFN_SECTION_SHIFT);
 
-	/*
-	 * The probe routines leave the pages reserved, just
-	 * as the bootmem code does.  Make sure they're still
-	 * that way.
-	 */
-	if (action == MEM_ONLINE) {
-		for (i = 0; i < nr_pages; i++) {
-			if (PageReserved(first_page+i))
-				continue;
-
-			printk(KERN_WARNING "section number %ld page number %d "
-				"not reserved, was it already online?\n",
-				phys_index, i);
-			return -EBUSY;
-		}
-	}
-
 	switch (action) {
 		case MEM_ONLINE:
 			start_pfn = page_to_pfn(first_page);
+
+			if (!pages_correctly_reserved(start_pfn, nr_pages))
+				return -EBUSY;
+
 			ret = online_pages(start_pfn, nr_pages);
 			break;
 		case MEM_OFFLINE:
@@ -380,9 +402,13 @@ memory_probe_store(struct class *class, struct class_attribute *attr,
 	u64 phys_addr;
 	int nid;
 	int i, ret;
+	unsigned long pages_per_block = PAGES_PER_SECTION * sections_per_block;
 
 	phys_addr = simple_strtoull(buf, NULL, 0);
 
+	if (phys_addr & ((pages_per_block << PAGE_SHIFT) - 1))
+		return -EINVAL;
+
 	for (i = 0; i < sections_per_block; i++) {
 		nid = memory_add_physaddr_to_nid(phys_addr);
 		ret = add_memory(nid, phys_addr,

drivers/base/platform.c

@@ -375,52 +375,64 @@ void platform_device_unregister(struct platform_device *pdev)
 EXPORT_SYMBOL_GPL(platform_device_unregister);
 
 /**
- * platform_device_register_resndata - add a platform-level device with
+ * platform_device_register_full - add a platform-level device with
  * resources and platform-specific data
  *
- * @parent: parent device for the device we're adding
- * @name: base name of the device we're adding
- * @id: instance id
- * @res: set of resources that needs to be allocated for the device
- * @num: number of resources
- * @data: platform specific data for this platform device
- * @size: size of platform specific data
+ * @pdevinfo: data used to create device
  *
  * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
  */
-struct platform_device *platform_device_register_resndata(
-		struct device *parent,
-		const char *name, int id,
-		const struct resource *res, unsigned int num,
-		const void *data, size_t size)
+struct platform_device *platform_device_register_full(
+		struct platform_device_info *pdevinfo)
 {
 	int ret = -ENOMEM;
 	struct platform_device *pdev;
 
-	pdev = platform_device_alloc(name, id);
+	pdev = platform_device_alloc(pdevinfo->name, pdevinfo->id);
 	if (!pdev)
-		goto err;
-
-	pdev->dev.parent = parent;
+		goto err_alloc;
+
+	pdev->dev.parent = pdevinfo->parent;
+
+	if (pdevinfo->dma_mask) {
+		/*
+		 * This memory isn't freed when the device is put,
+		 * I don't have a nice idea for that though.  Conceptually
+		 * dma_mask in struct device should not be a pointer.
+		 * See http://thread.gmane.org/gmane.linux.kernel.pci/9081
+		 */
+		pdev->dev.dma_mask =
+			kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
+		if (!pdev->dev.dma_mask)
+			goto err;
+
+		*pdev->dev.dma_mask = pdevinfo->dma_mask;
+		pdev->dev.coherent_dma_mask = pdevinfo->dma_mask;
+	}
 
-	ret = platform_device_add_resources(pdev, res, num);
+	ret = platform_device_add_resources(pdev,
+			pdevinfo->res, pdevinfo->num_res);
 	if (ret)
 		goto err;
 
-	ret = platform_device_add_data(pdev, data, size);
+	ret = platform_device_add_data(pdev,
+			pdevinfo->data, pdevinfo->size_data);
 	if (ret)
 		goto err;
 
 	ret = platform_device_add(pdev);
 	if (ret) {
 err:
+		kfree(pdev->dev.dma_mask);
+
+err_alloc:
 		platform_device_put(pdev);
 		return ERR_PTR(ret);
 	}
 
 	return pdev;
 }
-EXPORT_SYMBOL_GPL(platform_device_register_resndata);
+EXPORT_SYMBOL_GPL(platform_device_register_full);
 
 static int platform_drv_probe(struct device *_dev)
 {
@@ -614,7 +626,7 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
 		return rc;
 
 	add_uevent_var(env, "MODALIAS=%s%s", PLATFORM_MODULE_PREFIX,
-		(pdev->id_entry) ? pdev->id_entry->name : pdev->name);
+			pdev->name);
 	return 0;
 }
 

drivers/misc/pch_phub.c

@@ -90,6 +90,7 @@
 #define PCH_PHUB_INTPIN_REG_WPERMIT_REG3	0x002C
 #define PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE	0x0040
 #define CLKCFG_REG_OFFSET			0x500
+#define FUNCSEL_REG_OFFSET			0x508
 
 #define PCH_PHUB_OROM_SIZE 15360
 
@@ -108,6 +109,7 @@
  * @intpin_reg_wpermit_reg3:		INTPIN_REG_WPERMIT register 3 val
  * @int_reduce_control_reg:		INT_REDUCE_CONTROL registers val
  * @clkcfg_reg:				CLK CFG register val
+ * @funcsel_reg:			Function select register value
  * @pch_phub_base_address:		Register base address
  * @pch_phub_extrom_base_address:	external rom base address
  * @pch_mac_start_address:		MAC address area start address
@@ -128,6 +130,7 @@ struct pch_phub_reg {
 	u32 intpin_reg_wpermit_reg3;
 	u32 int_reduce_control_reg[MAX_NUM_INT_REDUCE_CONTROL_REG];
 	u32 clkcfg_reg;
+	u32 funcsel_reg;
 	void __iomem *pch_phub_base_address;
 	void __iomem *pch_phub_extrom_base_address;
 	u32 pch_mac_start_address;
@@ -211,6 +214,8 @@ static void pch_phub_save_reg_conf(struct pci_dev *pdev)
 			__func__, i, chip->int_reduce_control_reg[i]);
 	}
 	chip->clkcfg_reg = ioread32(p + CLKCFG_REG_OFFSET);
+	if ((chip->ioh_type == 2) || (chip->ioh_type == 4))
+		chip->funcsel_reg = ioread32(p + FUNCSEL_REG_OFFSET);
 }
 
 /* pch_phub_restore_reg_conf - restore register configuration */
@@ -271,6 +276,8 @@ static void pch_phub_restore_reg_conf(struct pci_dev *pdev)
 	}
 
 	iowrite32(chip->clkcfg_reg, p + CLKCFG_REG_OFFSET);
+	if ((chip->ioh_type == 2) || (chip->ioh_type == 4))
+		iowrite32(chip->funcsel_reg, p + FUNCSEL_REG_OFFSET);
 }
 
 /**
@@ -594,8 +601,7 @@ static ssize_t show_pch_mac(struct device *dev, struct device_attribute *attr,
 
 	pch_phub_read_gbe_mac_addr(chip, mac);
 
-	return sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n",
-				mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+	return sprintf(buf, "%pM\n", mac);
 }
 
 static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr,

drivers/uio/uio.c

@@ -69,7 +69,7 @@ static ssize_t map_name_show(struct uio_mem *mem, char *buf)
 
 static ssize_t map_addr_show(struct uio_mem *mem, char *buf)
 {
-	return sprintf(buf, "0x%lx\n", mem->addr);
+	return sprintf(buf, "0x%llx\n", (unsigned long long)mem->addr);
 }
 
 static ssize_t map_size_show(struct uio_mem *mem, char *buf)
@@ -79,7 +79,7 @@ static ssize_t map_size_show(struct uio_mem *mem, char *buf)
 
 static ssize_t map_offset_show(struct uio_mem *mem, char *buf)
 {
-	return sprintf(buf, "0x%lx\n", mem->addr & ~PAGE_MASK);
+	return sprintf(buf, "0x%llx\n", (unsigned long long)mem->addr & ~PAGE_MASK);
 }
 
 struct map_sysfs_entry {
@@ -634,8 +634,7 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL)
 		page = virt_to_page(idev->info->mem[mi].addr + offset);
 	else
-		page = vmalloc_to_page((void *)idev->info->mem[mi].addr
-							+ offset);
+		page = vmalloc_to_page((void *)(unsigned long)idev->info->mem[mi].addr + offset);
 	get_page(page);
 	vmf->page = page;
 	return 0;
@@ -750,14 +749,13 @@ static int uio_major_init(void)
 
 	uio_major = MAJOR(uio_dev);
 	uio_cdev = cdev;
-	result = 0;
-out:
-	return result;
+	return 0;
 out_put:
 	kobject_put(&cdev->kobj);
 out_unregister:
 	unregister_chrdev_region(uio_dev, UIO_MAX_DEVICES);
-	goto out;
+out:
+	return result;
 }
 
 static void uio_major_cleanup(void)

drivers/uio/uio_pci_generic.c

@@ -24,7 +24,6 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/uio_driver.h>
-#include <linux/spinlock.h>
 
 #define DRIVER_VERSION	"0.01.0"
 #define DRIVER_AUTHOR	"Michael S. Tsirkin <mst@redhat.com>"
@@ -33,7 +32,6 @@
 struct uio_pci_generic_dev {
 	struct uio_info info;
 	struct pci_dev *pdev;
-	spinlock_t lock; /* guards command register accesses */
 };
 
 static inline struct uio_pci_generic_dev *
@@ -57,7 +55,6 @@ static irqreturn_t irqhandler(int irq, struct uio_info *info)
 	BUILD_BUG_ON(PCI_COMMAND % 4);
 	BUILD_BUG_ON(PCI_COMMAND + 2 != PCI_STATUS);
 
-	spin_lock_irq(&gdev->lock);
 	pci_block_user_cfg_access(pdev);
 
 	/* Read both command and status registers in a single 32-bit operation.
@@ -83,7 +80,6 @@ static irqreturn_t irqhandler(int irq, struct uio_info *info)
 done:
 
 	pci_unblock_user_cfg_access(pdev);
-	spin_unlock_irq(&gdev->lock);
 	return ret;
 }
 
@@ -158,7 +154,6 @@ static int __devinit probe(struct pci_dev *pdev,
 	gdev->info.irq_flags = IRQF_SHARED;
 	gdev->info.handler = irqhandler;
 	gdev->pdev = pdev;
-	spin_lock_init(&gdev->lock);
 
 	if (uio_register_device(&pdev->dev, &gdev->info))
 		goto err_register;

drivers/uio/uio_pdrv_genirq.c

@@ -253,7 +253,7 @@ static const struct dev_pm_ops uio_pdrv_genirq_dev_pm_ops = {
 };
 
 #ifdef CONFIG_OF
-static const struct of_device_id __devinitconst uio_of_genirq_match[] = {
+static const struct of_device_id uio_of_genirq_match[] = {
 	{ /* empty for now */ },
 };
 MODULE_DEVICE_TABLE(of, uio_of_genirq_match);

fs/debugfs/inode.c

 /*
- *  file.c - part of debugfs, a tiny little debug file system
+ *  inode.c - part of debugfs, a tiny little debug file system
  *
  *  Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
  *  Copyright (C) 2004 IBM Inc.

fs/sysfs/dir.c

@@ -43,20 +43,48 @@ static DEFINE_IDA(sysfs_ino_ida);
 static void sysfs_link_sibling(struct sysfs_dirent *sd)
 {
 	struct sysfs_dirent *parent_sd = sd->s_parent;
-	struct sysfs_dirent **pos;
 
-	BUG_ON(sd->s_sibling);
-
-	/* Store directory entries in order by ino.  This allows
-	 * readdir to properly restart without having to add a
-	 * cursor into the s_dir.children list.
-	 */
-	for (pos = &parent_sd->s_dir.children; *pos; pos = &(*pos)->s_sibling) {
-		if (sd->s_ino < (*pos)->s_ino)
-			break;
+	struct rb_node **p;
+	struct rb_node *parent;
+
+	if (sysfs_type(sd) == SYSFS_DIR)
+		parent_sd->s_dir.subdirs++;
+
+	p = &parent_sd->s_dir.inode_tree.rb_node;
+	parent = NULL;
+	while (*p) {
+		parent = *p;
+#define node	rb_entry(parent, struct sysfs_dirent, inode_node)
+		if (sd->s_ino < node->s_ino) {
+			p = &node->inode_node.rb_left;
+		} else if (sd->s_ino > node->s_ino) {
+			p = &node->inode_node.rb_right;
+		} else {
+			printk(KERN_CRIT "sysfs: inserting duplicate inode '%lx'\n",
+			       (unsigned long) sd->s_ino);
+			BUG();
+		}
+#undef node
 	}
-	sd->s_sibling = *pos;
-	*pos = sd;
+	rb_link_node(&sd->inode_node, parent, p);
+	rb_insert_color(&sd->inode_node, &parent_sd->s_dir.inode_tree);
+
+	p = &parent_sd->s_dir.name_tree.rb_node;
+	parent = NULL;
+	while (*p) {
+		int c;
+		parent = *p;
+#define node	rb_entry(parent, struct sysfs_dirent, name_node)
+		c = strcmp(sd->s_name, node->s_name);
+		if (c < 0) {
+			p = &node->name_node.rb_left;
+		} else {
+			p = &node->name_node.rb_right;
+		}
+#undef node
+	}
+	rb_link_node(&sd->name_node, parent, p);
+	rb_insert_color(&sd->name_node, &parent_sd->s_dir.name_tree);
 }
 
 /**
@@ -71,16 +99,11 @@ static void sysfs_link_sibling(struct sysfs_dirent *sd)
  */
 static void sysfs_unlink_sibling(struct sysfs_dirent *sd)
 {
-	struct sysfs_dirent **pos;
+	if (sysfs_type(sd) == SYSFS_DIR)
+		sd->s_parent->s_dir.subdirs--;
 
-	for (pos = &sd->s_parent->s_dir.children; *pos;
-	     pos = &(*pos)->s_sibling) {
-		if (*pos == sd) {
-			*pos = sd->s_sibling;
-			sd->s_sibling = NULL;
-			break;
-		}
-	}
+	rb_erase(&sd->inode_node, &sd->s_parent->s_dir.inode_tree);
+	rb_erase(&sd->name_node, &sd->s_parent->s_dir.name_tree);
 }
 
 /**
@@ -126,7 +149,6 @@ struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd)
  */
 void sysfs_put_active(struct sysfs_dirent *sd)
 {
-	struct completion *cmpl;
 	int v;
 
 	if (unlikely(!sd))
@@ -138,10 +160,9 @@ void sysfs_put_active(struct sysfs_dirent *sd)
 		return;
 
 	/* atomic_dec_return() is a mb(), we'll always see the updated
-	 * sd->s_sibling.
+	 * sd->u.completion.
 	 */
-	cmpl = (void *)sd->s_sibling;
-	complete(cmpl);
+	complete(sd->u.completion);
 }
 
 /**
@@ -155,16 +176,16 @@ static void sysfs_deactivate(struct sysfs_dirent *sd)
 	DECLARE_COMPLETION_ONSTACK(wait);
 	int v;
 
-	BUG_ON(sd->s_sibling || !(sd->s_flags & SYSFS_FLAG_REMOVED));
+	BUG_ON(!(sd->s_flags & SYSFS_FLAG_REMOVED));
 
 	if (!(sysfs_type(sd) & SYSFS_ACTIVE_REF))
 		return;
 
-	sd->s_sibling = (void *)&wait;
+	sd->u.completion = (void *)&wait;
 
 	rwsem_acquire(&sd->dep_map, 0, 0, _RET_IP_);
 	/* atomic_add_return() is a mb(), put_active() will always see
-	 * the updated sd->s_sibling.
+	 * the updated sd->u.completion.
 	 */
 	v = atomic_add_return(SD_DEACTIVATED_BIAS, &sd->s_active);
 
@@ -173,8 +194,6 @@ static void sysfs_deactivate(struct sysfs_dirent *sd)
 		wait_for_completion(&wait);
 	}
 
-	sd->s_sibling = NULL;
-
 	lock_acquired(&sd->dep_map, _RET_IP_);
 	rwsem_release(&sd->dep_map, 1, _RET_IP_);
 }
@@ -490,7 +509,7 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 	}
 
 	sd->s_flags |= SYSFS_FLAG_REMOVED;
-	sd->s_sibling = acxt->removed;
+	sd->u.removed_list = acxt->removed;
 	acxt->removed = sd;
 }
 
@@ -514,8 +533,7 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
 	while (acxt->removed) {
 		struct sysfs_dirent *sd = acxt->removed;
 
-		acxt->removed = sd->s_sibling;
-		sd->s_sibling = NULL;
+		acxt->removed = sd->u.removed_list;
 
 		sysfs_deactivate(sd);
 		unmap_bin_file(sd);
@@ -540,15 +558,36 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
 				       const void *ns,
 				       const unsigned char *name)
 {
-	struct sysfs_dirent *sd;
+	struct rb_node *p = parent_sd->s_dir.name_tree.rb_node;
+	struct sysfs_dirent *found = NULL;
+
+	while (p) {
+		int c;
+#define node	rb_entry(p, struct sysfs_dirent, name_node)
+		c = strcmp(name, node->s_name);
+		if (c < 0) {
+			p = node->name_node.rb_left;
+		} else if (c > 0) {
+			p = node->name_node.rb_right;
+		} else {
+			found = node;
+			p = node->name_node.rb_left;
+		}
+#undef node
+	}
 
-	for (sd = parent_sd->s_dir.children; sd; sd = sd->s_sibling) {
-		if (ns && sd->s_ns && (sd->s_ns != ns))
-			continue;
-		if (!strcmp(sd->s_name, name))
-			return sd;
+	if (found && ns) {
+		while (found->s_ns && found->s_ns != ns) {
+			p = rb_next(&found->name_node);
+			if (!p)
+				return NULL;
+			found = rb_entry(p, struct sysfs_dirent, name_node);
+			if (strcmp(name, found->s_name))
+				return NULL;
+		}
 	}
-	return NULL;
+
+	return found;
 }
 
 /**
@@ -744,21 +783,19 @@ void sysfs_remove_subdir(struct sysfs_dirent *sd)
 static void __sysfs_remove_dir(struct sysfs_dirent *dir_sd)
 {
 	struct sysfs_addrm_cxt acxt;
-	struct sysfs_dirent **pos;
+	struct rb_node *pos;
 
 	if (!dir_sd)
 		return;
 
 	pr_debug("sysfs %s: removing dir\n", dir_sd->s_name);
 	sysfs_addrm_start(&acxt, dir_sd);
-	pos = &dir_sd->s_dir.children;
-	while (*pos) {
-		struct sysfs_dirent *sd = *pos;
-
+	pos = rb_first(&dir_sd->s_dir.inode_tree);
+	while (pos) {
+		struct sysfs_dirent *sd = rb_entry(pos, struct sysfs_dirent, inode_node);
+		pos = rb_next(pos);
 		if (sysfs_type(sd) != SYSFS_DIR)
 			sysfs_remove_one(&acxt, sd);
-		else
-			pos = &(*pos)->s_sibling;
 	}
 	sysfs_addrm_finish(&acxt);
 
@@ -881,12 +918,28 @@ static struct sysfs_dirent *sysfs_dir_pos(const void *ns,
 			pos = NULL;
 	}
 	if (!pos && (ino > 1) && (ino < INT_MAX)) {
-		pos = parent_sd->s_dir.children;
-		while (pos && (ino > pos->s_ino))
-			pos = pos->s_sibling;
+		struct rb_node *p = parent_sd->s_dir.inode_tree.rb_node;
+		while (p) {
+#define node	rb_entry(p, struct sysfs_dirent, inode_node)
+			if (ino < node->s_ino) {
+				pos = node;
+				p = node->inode_node.rb_left;
+			} else if (ino > node->s_ino) {
+				p = node->inode_node.rb_right;
+			} else {
+				pos = node;
+				break;
+			}
+#undef node
+		}
+	}
+	while (pos && pos->s_ns && pos->s_ns != ns) {
+		struct rb_node *p = rb_next(&pos->inode_node);
+		if (!p)
+			pos = NULL;
+		else
+			pos = rb_entry(p, struct sysfs_dirent, inode_node);
 	}
-	while (pos && pos->s_ns && pos->s_ns != ns)
-		pos = pos->s_sibling;
 	return pos;
 }
 
@@ -894,10 +947,13 @@ static struct sysfs_dirent *sysfs_dir_next_pos(const void *ns,
 	struct sysfs_dirent *parent_sd,	ino_t ino, struct sysfs_dirent *pos)
 {
 	pos = sysfs_dir_pos(ns, parent_sd, ino, pos);
-	if (pos)
-		pos = pos->s_sibling;
-	while (pos && pos->s_ns && pos->s_ns != ns)
-		pos = pos->s_sibling;
+	if (pos) do {
+		struct rb_node *p = rb_next(&pos->inode_node);
+		if (!p)
+			pos = NULL;
+		else
+			pos = rb_entry(p, struct sysfs_dirent, inode_node);
+	} while (pos && pos->s_ns && pos->s_ns != ns);
 	return pos;
 }
 

fs/sysfs/inode.c

@@ -202,18 +202,6 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
 	inode->i_ctime = iattr->ia_ctime;
 }
 
-static int sysfs_count_nlink(struct sysfs_dirent *sd)
-{
-	struct sysfs_dirent *child;
-	int nr = 0;
-
-	for (child = sd->s_dir.children; child; child = child->s_sibling)
-		if (sysfs_type(child) == SYSFS_DIR)
-			nr++;
-
-	return nr + 2;
-}
-
 static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
 {
 	struct sysfs_inode_attrs *iattrs = sd->s_iattr;
@@ -230,7 +218,7 @@ static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
 	}
 
 	if (sysfs_type(sd) == SYSFS_DIR)
-		inode->i_nlink = sysfs_count_nlink(sd);
+		inode->i_nlink = sd->s_dir.subdirs + 2;
 }
 
 int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)

fs/sysfs/sysfs.h

@@ -11,14 +11,18 @@
 #include <linux/lockdep.h>
 #include <linux/kobject_ns.h>
 #include <linux/fs.h>
+#include <linux/rbtree.h>
 
 struct sysfs_open_dirent;
 
 /* type-specific structures for sysfs_dirent->s_* union members */
 struct sysfs_elem_dir {
 	struct kobject		*kobj;
-	/* children list starts here and goes through sd->s_sibling */
-	struct sysfs_dirent	*children;
+
+	unsigned long		subdirs;
+
+	struct rb_root		inode_tree;
+	struct rb_root		name_tree;
 };
 
 struct sysfs_elem_symlink {
@@ -56,9 +60,16 @@ struct sysfs_dirent {
 	struct lockdep_map	dep_map;
 #endif
 	struct sysfs_dirent	*s_parent;
-	struct sysfs_dirent	*s_sibling;
 	const char		*s_name;
 
+	struct rb_node		inode_node;
+	struct rb_node		name_node;
+
+	union {
+		struct completion	*completion;
+		struct sysfs_dirent	*removed_list;
+	} u;
+
 	const void		*s_ns; /* namespace tag */
 	union {
 		struct sysfs_elem_dir		s_dir;

include/linux/device.h

@@ -785,6 +785,8 @@ extern const char *dev_driver_string(const struct device *dev);
 
 #ifdef CONFIG_PRINTK
 
+extern int __dev_printk(const char *level, const struct device *dev,
+			struct va_format *vaf);
 extern int dev_printk(const char *level, const struct device *dev,
 		      const char *fmt, ...)
 	__attribute__ ((format (printf, 3, 4)));
@@ -805,6 +807,9 @@ extern int _dev_info(const struct device *dev, const char *fmt, ...)
 
 #else
 
+static inline int __dev_printk(const char *level, const struct device *dev,
+			       struct va_format *vaf)
+	 { return 0; }
 static inline int dev_printk(const char *level, const struct device *dev,
 		      const char *fmt, ...)
 	__attribute__ ((format (printf, 3, 4)));

include/linux/dynamic_debug.h

 #ifndef _DYNAMIC_DEBUG_H
 #define _DYNAMIC_DEBUG_H
 
-/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
- * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
- * use independent hash functions, to reduce the chance of false positives.
- */
-extern long long dynamic_debug_enabled;
-extern long long dynamic_debug_enabled2;
-
 /*
  * An instance of this structure is created in a special
  * ELF section at every dynamic debug callsite.  At runtime,
@@ -47,26 +40,55 @@ extern int ddebug_remove_module(const char *mod_name);
 extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
 	__attribute__ ((format (printf, 2, 3)));
 
-#define dynamic_pr_debug(fmt, ...) do {					\
-	static struct _ddebug descriptor				\
-	__used								\
-	__attribute__((section("__verbose"), aligned(8))) =		\
-	{ KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__,		\
-		_DPRINTK_FLAGS_DEFAULT };				\
-	if (unlikely(descriptor.enabled))				\
-		__dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
-	} while (0)
-
-
-#define dynamic_dev_dbg(dev, fmt, ...) do {				\
-	static struct _ddebug descriptor				\
-	__used								\
-	__attribute__((section("__verbose"), aligned(8))) =		\
-	{ KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__,		\
-		_DPRINTK_FLAGS_DEFAULT };				\
-	if (unlikely(descriptor.enabled))				\
-		dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__);	\
-	} while (0)
+struct device;
+
+extern int __dynamic_dev_dbg(struct _ddebug *descriptor,
+			     const struct device *dev,
+			     const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
+
+struct net_device;
+
+extern int __dynamic_netdev_dbg(struct _ddebug *descriptor,
+			     const struct net_device *dev,
+			     const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
+
+#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)		\
+	static struct _ddebug __used __aligned(8)		\
+	__attribute__((section("__verbose"))) name = {		\
+		.modname = KBUILD_MODNAME,			\
+		.function = __func__,				\
+		.filename = __FILE__,				\
+		.format = (fmt),				\
+		.lineno = __LINE__,				\
+		.flags =  _DPRINTK_FLAGS_DEFAULT,		\
+		.enabled = false,				\
+	}
+
+#define dynamic_pr_debug(fmt, ...)				\
+do {								\
+	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);		\
+	if (unlikely(descriptor.enabled))			\
+		__dynamic_pr_debug(&descriptor, pr_fmt(fmt),	\
+				   ##__VA_ARGS__);		\
+} while (0)
+
+#define dynamic_dev_dbg(dev, fmt, ...)				\
+do {								\
+	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);	\
+	if (unlikely(descriptor.enabled))			\
+		__dynamic_dev_dbg(&descriptor, dev, fmt,	\
+				  ##__VA_ARGS__);		\
+} while (0)
+
+#define dynamic_netdev_dbg(dev, fmt, ...)			\
+do {								\
+	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);		\
+	if (unlikely(descriptor.enabled))			\
+		__dynamic_netdev_dbg(&descriptor, dev, fmt,	\
+				     ##__VA_ARGS__);		\
+} while (0)
 
 #else
 

include/linux/netdevice.h

@@ -2617,6 +2617,9 @@ static inline const char *netdev_name(const struct net_device *dev)
 	return dev->name;
 }
 
+extern int __netdev_printk(const char *level, const struct net_device *dev,
+			struct va_format *vaf);
+
 extern int netdev_printk(const char *level, const struct net_device *dev,
 			 const char *format, ...)
 	__attribute__ ((format (printf, 3, 4)));
@@ -2644,8 +2647,7 @@ extern int netdev_info(const struct net_device *dev, const char *format, ...)
 #elif defined(CONFIG_DYNAMIC_DEBUG)
 #define netdev_dbg(__dev, format, args...)			\
 do {								\
-	dynamic_dev_dbg((__dev)->dev.parent, "%s: " format,	\
-			netdev_name(__dev), ##args);		\
+	dynamic_netdev_dbg(__dev, format, ##args);		\
 } while (0)
 #else
 #define netdev_dbg(__dev, format, args...)			\
@@ -2712,9 +2714,7 @@ do {								\
 #define netif_dbg(priv, type, netdev, format, args...)		\
 do {								\
 	if (netif_msg_##type(priv))				\
-		dynamic_dev_dbg((netdev)->dev.parent,		\
-				"%s: " format,			\
-				netdev_name(netdev), ##args);	\
+		dynamic_netdev_dbg(netdev, format, ##args);	\
 } while (0)
 #else
 #define netif_dbg(priv, type, dev, format, args...)			\

include/linux/platform_device.h

@@ -49,10 +49,54 @@ extern struct resource *platform_get_resource_byname(struct platform_device *, u
 extern int platform_get_irq_byname(struct platform_device *, const char *);
 extern int platform_add_devices(struct platform_device **, int);
 
-extern struct platform_device *platform_device_register_resndata(
+struct platform_device_info {
+		struct device *parent;
+
+		const char *name;
+		int id;
+
+		const struct resource *res;
+		unsigned int num_res;
+
+		const void *data;
+		size_t size_data;
+		u64 dma_mask;
+};
+extern struct platform_device *platform_device_register_full(
+		struct platform_device_info *pdevinfo);
+
+/**
+ * platform_device_register_resndata - add a platform-level device with
+ * resources and platform-specific data
+ *
+ * @parent: parent device for the device we're adding
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @res: set of resources that needs to be allocated for the device
+ * @num: number of resources
+ * @data: platform specific data for this platform device
+ * @size: size of platform specific data
+ *
+ * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
+ */
+static inline struct platform_device *platform_device_register_resndata(
 		struct device *parent, const char *name, int id,
 		const struct resource *res, unsigned int num,
-		const void *data, size_t size);
+		const void *data, size_t size) {
+
+	struct platform_device_info pdevinfo = {
+		.parent = parent,
+		.name = name,
+		.id = id,
+		.res = res,
+		.num_res = num,
+		.data = data,
+		.size_data = size,
+		.dma_mask = 0,
+	};
+
+	return platform_device_register_full(&pdevinfo);
+}
 
 /**
  * platform_device_register_simple - add a platform-level device and its resources

include/linux/uio_driver.h

@@ -23,7 +23,10 @@ struct uio_map;
 /**
  * struct uio_mem - description of a UIO memory region
  * @name:		name of the memory region for identification
- * @addr:		address of the device's memory
+ * @addr:		address of the device's memory (phys_addr is used since
+ * 			addr can be logical, virtual, or physical & phys_addr_t
+ * 			should always be large enough to handle any of the
+ * 			address types)
  * @size:		size of IO
  * @memtype:		type of memory addr points to
  * @internal_addr:	ioremap-ped version of addr, for driver internal use
@@ -31,7 +34,7 @@ struct uio_map;
  */
 struct uio_mem {
 	const char		*name;
-	unsigned long		addr;
+	phys_addr_t		addr;
 	unsigned long		size;
 	int			memtype;
 	void __iomem		*internal_addr;

lib/dynamic_debug.c

@@ -10,6 +10,8 @@
  * Copyright (C) 2011 Bart Van Assche.  All Rights Reserved.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -29,6 +31,8 @@
 #include <linux/jump_label.h>
 #include <linux/hardirq.h>
 #include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
 
 extern struct _ddebug __start___verbose[];
 extern struct _ddebug __stop___verbose[];
@@ -37,7 +41,6 @@ struct ddebug_table {
 	struct list_head link;
 	char *mod_name;
 	unsigned int num_ddebugs;
-	unsigned int num_enabled;
 	struct _ddebug *ddebugs;
 };
 
@@ -147,19 +150,13 @@ static void ddebug_change(const struct ddebug_query *query,
 			newflags = (dp->flags & mask) | flags;
 			if (newflags == dp->flags)
 				continue;
-
-			if (!newflags)
-				dt->num_enabled--;
-			else if (!dp->flags)
-				dt->num_enabled++;
 			dp->flags = newflags;
 			if (newflags)
 				dp->enabled = 1;
 			else
 				dp->enabled = 0;
 			if (verbose)
-				printk(KERN_INFO
-					"ddebug: changed %s:%d [%s]%s %s\n",
+				pr_info("changed %s:%d [%s]%s %s\n",
 					dp->filename, dp->lineno,
 					dt->mod_name, dp->function,
 					ddebug_describe_flags(dp, flagbuf,
@@ -169,7 +166,7 @@ static void ddebug_change(const struct ddebug_query *query,
 	mutex_unlock(&ddebug_lock);
 
 	if (!nfound && verbose)
-		printk(KERN_INFO "ddebug: no matches for query\n");
+		pr_info("no matches for query\n");
 }
 
 /*
@@ -214,10 +211,10 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
 
 	if (verbose) {
 		int i;
-		printk(KERN_INFO "%s: split into words:", __func__);
+		pr_info("split into words:");
 		for (i = 0 ; i < nwords ; i++)
-			printk(" \"%s\"", words[i]);
-		printk("\n");
+			pr_cont(" \"%s\"", words[i]);
+		pr_cont("\n");
 	}
 
 	return nwords;
@@ -329,16 +326,15 @@ static int ddebug_parse_query(char *words[], int nwords,
 			}
 		} else {
 			if (verbose)
-				printk(KERN_ERR "%s: unknown keyword \"%s\"\n",
-					__func__, words[i]);
+				pr_err("unknown keyword \"%s\"\n", words[i]);
 			return -EINVAL;
 		}
 	}
 
 	if (verbose)
-		printk(KERN_INFO "%s: q->function=\"%s\" q->filename=\"%s\" "
-		       "q->module=\"%s\" q->format=\"%s\" q->lineno=%u-%u\n",
-			__func__, query->function, query->filename,
+		pr_info("q->function=\"%s\" q->filename=\"%s\" "
+			"q->module=\"%s\" q->format=\"%s\" q->lineno=%u-%u\n",
+			query->function, query->filename,
 			query->module, query->format, query->first_lineno,
 			query->last_lineno);
 
@@ -367,7 +363,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 		return -EINVAL;
 	}
 	if (verbose)
-		printk(KERN_INFO "%s: op='%c'\n", __func__, op);
+		pr_info("op='%c'\n", op);
 
 	for ( ; *str ; ++str) {
 		for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
@@ -382,7 +378,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 	if (flags == 0)
 		return -EINVAL;
 	if (verbose)
-		printk(KERN_INFO "%s: flags=0x%x\n", __func__, flags);
+		pr_info("flags=0x%x\n", flags);
 
 	/* calculate final *flagsp, *maskp according to mask and op */
 	switch (op) {
@@ -400,8 +396,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 		break;
 	}
 	if (verbose)
-		printk(KERN_INFO "%s: *flagsp=0x%x *maskp=0x%x\n",
-			__func__, *flagsp, *maskp);
+		pr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
 	return 0;
 }
 
@@ -426,40 +421,117 @@ static int ddebug_exec_query(char *query_string)
 	return 0;
 }
 
+#define PREFIX_SIZE 64
+
+static int remaining(int wrote)
+{
+	if (PREFIX_SIZE - wrote > 0)
+		return PREFIX_SIZE - wrote;
+	return 0;
+}
+
+static char *dynamic_emit_prefix(const struct _ddebug *desc, char *buf)
+{
+	int pos_after_tid;
+	int pos = 0;
+
+	pos += snprintf(buf + pos, remaining(pos), "%s", KERN_DEBUG);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_TID) {
+		if (in_interrupt())
+			pos += snprintf(buf + pos, remaining(pos), "%s ",
+						"<intr>");
+		else
+			pos += snprintf(buf + pos, remaining(pos), "[%d] ",
+						task_pid_vnr(current));
+	}
+	pos_after_tid = pos;
+	if (desc->flags & _DPRINTK_FLAGS_INCL_MODNAME)
+		pos += snprintf(buf + pos, remaining(pos), "%s:",
+					desc->modname);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
+		pos += snprintf(buf + pos, remaining(pos), "%s:",
+					desc->function);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_LINENO)
+		pos += snprintf(buf + pos, remaining(pos), "%d:", desc->lineno);
+	if (pos - pos_after_tid)
+		pos += snprintf(buf + pos, remaining(pos), " ");
+	if (pos >= PREFIX_SIZE)
+		buf[PREFIX_SIZE - 1] = '\0';
+
+	return buf;
+}
+
 int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
 {
 	va_list args;
 	int res;
+	struct va_format vaf;
+	char buf[PREFIX_SIZE];
 
 	BUG_ON(!descriptor);
 	BUG_ON(!fmt);
 
 	va_start(args, fmt);
-	res = printk(KERN_DEBUG);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_TID) {
-		if (in_interrupt())
-			res += printk(KERN_CONT "<intr> ");
-		else
-			res += printk(KERN_CONT "[%d] ", task_pid_vnr(current));
-	}
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_MODNAME)
-		res += printk(KERN_CONT "%s:", descriptor->modname);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
-		res += printk(KERN_CONT "%s:", descriptor->function);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_LINENO)
-		res += printk(KERN_CONT "%d ", descriptor->lineno);
-	res += vprintk(fmt, args);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = printk("%s%pV", dynamic_emit_prefix(descriptor, buf), &vaf);
 	va_end(args);
 
 	return res;
 }
 EXPORT_SYMBOL(__dynamic_pr_debug);
 
+int __dynamic_dev_dbg(struct _ddebug *descriptor,
+		      const struct device *dev, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int res;
+	char buf[PREFIX_SIZE];
+
+	BUG_ON(!descriptor);
+	BUG_ON(!fmt);
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = __dev_printk(dynamic_emit_prefix(descriptor, buf), dev, &vaf);
+	va_end(args);
+
+	return res;
+}
+EXPORT_SYMBOL(__dynamic_dev_dbg);
+
+#ifdef CONFIG_NET
+
+int __dynamic_netdev_dbg(struct _ddebug *descriptor,
+		      const struct net_device *dev, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int res;
+	char buf[PREFIX_SIZE];
+
+	BUG_ON(!descriptor);
+	BUG_ON(!fmt);
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = __netdev_printk(dynamic_emit_prefix(descriptor, buf), dev, &vaf);
+	va_end(args);
+
+	return res;
+}
+EXPORT_SYMBOL(__dynamic_netdev_dbg);
+
+#endif
+
 static __initdata char ddebug_setup_string[1024];
 static __init int ddebug_setup_query(char *str)
 {
 	if (strlen(str) >= 1024) {
-		pr_warning("ddebug boot param string too large\n");
+		pr_warn("ddebug boot param string too large\n");
 		return 0;
 	}
 	strcpy(ddebug_setup_string, str);
@@ -487,8 +559,7 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
 		return -EFAULT;
 	tmpbuf[len] = '\0';
 	if (verbose)
-		printk(KERN_INFO "%s: read %d bytes from userspace\n",
-			__func__, (int)len);
+		pr_info("read %d bytes from userspace\n", (int)len);
 
 	ret = ddebug_exec_query(tmpbuf);
 	if (ret)
@@ -551,8 +622,7 @@ static void *ddebug_proc_start(struct seq_file *m, loff_t *pos)
 	int n = *pos;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p *pos=%lld\n",
-			__func__, m, (unsigned long long)*pos);
+		pr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);
 
 	mutex_lock(&ddebug_lock);
 
@@ -577,8 +647,8 @@ static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
 	struct _ddebug *dp;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p *pos=%lld\n",
-			__func__, m, p, (unsigned long long)*pos);
+		pr_info("called m=%p p=%p *pos=%lld\n",
+			m, p, (unsigned long long)*pos);
 
 	if (p == SEQ_START_TOKEN)
 		dp = ddebug_iter_first(iter);
@@ -601,8 +671,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
 	char flagsbuf[8];
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p\n",
-			__func__, m, p);
+		pr_info("called m=%p p=%p\n", m, p);
 
 	if (p == SEQ_START_TOKEN) {
 		seq_puts(m,
@@ -627,8 +696,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
 static void ddebug_proc_stop(struct seq_file *m, void *p)
 {
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p\n",
-			__func__, m, p);
+		pr_info("called m=%p p=%p\n", m, p);
 	mutex_unlock(&ddebug_lock);
 }
 
@@ -651,7 +719,7 @@ static int ddebug_proc_open(struct inode *inode, struct file *file)
 	int err;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called\n", __func__);
+		pr_info("called\n");
 
 	iter = kzalloc(sizeof(*iter), GFP_KERNEL);
 	if (iter == NULL)
@@ -695,7 +763,6 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 	}
 	dt->mod_name = new_name;
 	dt->num_ddebugs = n;
-	dt->num_enabled = 0;
 	dt->ddebugs = tab;
 
 	mutex_lock(&ddebug_lock);
@@ -703,8 +770,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 	mutex_unlock(&ddebug_lock);
 
 	if (verbose)
-		printk(KERN_INFO "%u debug prints in module %s\n",
-				 n, dt->mod_name);
+		pr_info("%u debug prints in module %s\n", n, dt->mod_name);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ddebug_add_module);
@@ -726,8 +792,7 @@ int ddebug_remove_module(const char *mod_name)
 	int ret = -ENOENT;
 
 	if (verbose)
-		printk(KERN_INFO "%s: removing module \"%s\"\n",
-				__func__, mod_name);
+		pr_info("removing module \"%s\"\n", mod_name);
 
 	mutex_lock(&ddebug_lock);
 	list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
@@ -803,8 +868,8 @@ static int __init dynamic_debug_init(void)
 	if (ddebug_setup_string[0] != '\0') {
 		ret = ddebug_exec_query(ddebug_setup_string);
 		if (ret)
-			pr_warning("Invalid ddebug boot param %s",
-				   ddebug_setup_string);
+			pr_warn("Invalid ddebug boot param %s",
+				ddebug_setup_string);
 		else
 			pr_info("ddebug initialized with string %s",
 				ddebug_setup_string);

lib/kobject_uevent.c

@@ -282,7 +282,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 							    kobj_bcast_filter,
 							    kobj);
 			/* ENOBUFS should be handled in userspace */
-			if (retval == -ENOBUFS)
+			if (retval == -ENOBUFS || retval == -ESRCH)
 				retval = 0;
 		} else
 			retval = -ENOMEM;

net/core/dev.c

@@ -6298,7 +6298,7 @@ const char *netdev_drivername(const struct net_device *dev)
 	return empty;
 }
 
-static int __netdev_printk(const char *level, const struct net_device *dev,
+int __netdev_printk(const char *level, const struct net_device *dev,
 			   struct va_format *vaf)
 {
 	int r;
@@ -6313,6 +6313,7 @@ static int __netdev_printk(const char *level, const struct net_device *dev,
 
 	return r;
 }
+EXPORT_SYMBOL(__netdev_printk);
 
 int netdev_printk(const char *level, const struct net_device *dev,
 		  const char *format, ...)