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: (31 commits)
  driver core: Display error codes when class suspend fails
  Driver core: Add section count to memory_block struct
  Driver core: Add mutex for adding/removing memory blocks
  Driver core: Move find_memory_block routine
  hpilo: Despecificate driver from iLO generation
  driver core: Convert link_mem_sections to use find_memory_block_hinted.
  driver core: Introduce find_memory_block_hinted which utilizes kset_find_obj_hinted.
  kobject: Introduce kset_find_obj_hinted.
  driver core: fix build for CONFIG_BLOCK not enabled
  driver-core: base: change to new flag variable
  sysfs: only access bin file vm_ops with the active lock
  sysfs: Fail bin file mmap if vma close is implemented.
  FW_LOADER: fix kconfig dependency warning on HOTPLUG
  uio: Statically allocate uio_class and use class .dev_attrs.
  uio: Support 2^MINOR_BITS minors
  uio: Cleanup irq handling.
  uio: Don't clear driver data
  uio: Fix lack of locking in init_uio_class
  SYSFS: Allow boot time switching between deprecated and modern sysfs layout
  driver core: remove CONFIG_SYSFS_DEPRECATED_V2 but keep it for block devices
  ...

34 files changed, 1238 insertions, 516 deletions

diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module
new file mode 100644
index 000000000000..cfcec3bffc0a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-module
@@ -0,0 +1,12 @@
+What:           /sys/module/pch_phub/drivers/.../pch_mac
+Date:           August 2010
+KernelVersion:  2.6.35
+Contact:        masa-korg@dsn.okisemi.com
+Description:    Write/read GbE MAC address.
+
+What:           /sys/module/pch_phub/drivers/.../pch_firmware
+Date:           August 2010
+KernelVersion:  2.6.35
+Contact:        masa-korg@dsn.okisemi.com
+Description:    Write/read Option ROM data.
+
diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt
index 674c5663d346..58ea64a96165 100644
--- a/Documentation/dynamic-debug-howto.txt
+++ b/Documentation/dynamic-debug-howto.txt
@@ -24,7 +24,7 @@ Dynamic debug has even more useful features:
    read to display the complete list of known debug statements, to help guide you
 
 Controlling dynamic debug Behaviour
-===============================
+===================================
 
 The behaviour of pr_debug()/dev_debug()s are controlled via writing to a
 control file in the 'debugfs' filesystem. Thus, you must first mount the debugfs
@@ -212,6 +212,26 @@ Note the regexp ^[-+=][scp]+$ matches a flags specification.
 Note also that there is no convenient syntax to remove all
 the flags at once, you need to use "-psc".
 
+
+Debug messages during boot process
+==================================
+
+To be able to activate debug messages during the boot process,
+even before userspace and debugfs exists, use the boot parameter:
+ddebug_query="QUERY"
+
+QUERY follows the syntax described above, but must not exceed 1023
+characters. The enablement of debug messages is done as an arch_initcall.
+Thus you can enable debug messages in all code processed after this
+arch_initcall via this boot parameter.
+On an x86 system for example ACPI enablement is a subsys_initcall and
+ddebug_query="file ec.c +p"
+will show early Embedded Controller transactions during ACPI setup if
+your machine (typically a laptop) has an Embedded Controller.
+PCI (or other devices) initialization also is a hot candidate for using
+this boot parameter for debugging purposes.
+
+
 Examples
 ========
 
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 02f21d9220ce..4cd8b86e00ea 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -43,10 +43,11 @@ parameter is applicable:
         AVR32   AVR32 architecture is enabled.
         AX25    Appropriate AX.25 support is enabled.
         BLACKFIN Blackfin architecture is enabled.
-        DRM     Direct Rendering Management support is enabled.
         EDD     BIOS Enhanced Disk Drive Services (EDD) is enabled
         EFI     EFI Partitioning (GPT) is enabled
         EIDE    EIDE/ATAPI support is enabled.
+        DRM     Direct Rendering Management support is enabled.
+        DYNAMIC_DEBUG Build in debug messages and enable them at runtime
         FB      The frame buffer device is enabled.
         GCOV    GCOV profiling is enabled.
         HW      Appropriate hardware is enabled.
@@ -570,6 +571,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format: <port#>,<type>
                         See also Documentation/input/joystick-parport.txt
 
+        ddebug_query=   [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
+                        time. See Documentation/dynamic-debug-howto.txt for
+                        details.
+
         debug           [KNL] Enable kernel debugging (events log level).
 
         debug_locks_verbose=
@@ -2370,6 +2375,15 @@ and is between 256 and 4096 characters. It is defined in the file
 
         switches=       [HW,M68k]
 
+        sysfs.deprecated=0|1 [KNL]
+                        Enable/disable old style sysfs layout for old udev
+                        on older distributions. When this option is enabled
+                        very new udev will not work anymore. When this option
+                        is disabled (or CONFIG_SYSFS_DEPRECATED not compiled)
+                        in older udev will not work anymore.
+                        Default depends on CONFIG_SYSFS_DEPRECATED_V2 set in
+                        the kernel configuration.
+
         sysrq_always_enabled
                         [KNL]
                         Ignore sysrq setting - this boot parameter will
diff --git a/MAINTAINERS b/MAINTAINERS
index b618b1e86c46..fd19b544a1b1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2064,14 +2064,16 @@ F:	drivers/block/drbd/
 F:      lib/lru_cache.c
 F:      Documentation/blockdev/drbd/
 
-DRIVER CORE, KOBJECTS, AND SYSFS
+DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
 M:      Greg Kroah-Hartman <gregkh@suse.de>
 T:      quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
 S:      Supported
 F:      Documentation/kobject.txt
 F:      drivers/base/
 F:      fs/sysfs/
+F:      fs/debugfs/
 F:      include/linux/kobj*
+F:      include/linux/debugfs.h
 F:      lib/kobj*
 
 DRM DRIVERS
diff --git a/block/genhd.c b/block/genhd.c
index 8313834596db..a8adf96a4b41 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -22,9 +22,7 @@
 #include "blk.h"
 
 static DEFINE_MUTEX(block_class_lock);
-#ifndef CONFIG_SYSFS_DEPRECATED
 struct kobject *block_depr;
-#endif
 
 /* for extended dynamic devt allocation, currently only one major is used */
 #define MAX_EXT_DEVT            (1 << MINORBITS)
@@ -810,10 +808,9 @@ static int __init genhd_device_init(void)
 
         register_blkdev(BLOCK_EXT_MAJOR, "blkext");
 
-#ifndef CONFIG_SYSFS_DEPRECATED
         /* create top-level block dir */
-        block_depr = kobject_create_and_add("block", NULL);
-#endif
+        if (!sysfs_deprecated)
+                block_depr = kobject_create_and_add("block", NULL);
         return 0;
 }
 
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index ef38aff737eb..fd96345bc35c 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -71,7 +71,6 @@ config PREVENT_FIRMWARE_BUILD
 
 config FW_LOADER
         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
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index c12c7f2f2a6f..5f51c3b4451e 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -19,7 +19,5 @@ obj-$(CONFIG_MODULES)	+= module.o
 endif
 obj-$(CONFIG_SYS_HYPERVISOR) += hypervisor.o
 
-ifeq ($(CONFIG_DEBUG_DRIVER),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
 
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index eb1b7fa20dce..33c270a64db7 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -440,22 +440,6 @@ static void device_remove_attrs(struct bus_type *bus, struct device *dev)
         }
 }
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-static int make_deprecated_bus_links(struct device *dev)
-{
-        return sysfs_create_link(&dev->kobj,
-                                 &dev->bus->p->subsys.kobj, "bus");
-}
-
-static void remove_deprecated_bus_links(struct device *dev)
-{
-        sysfs_remove_link(&dev->kobj, "bus");
-}
-#else
-static inline int make_deprecated_bus_links(struct device *dev) { return 0; }
-static inline void remove_deprecated_bus_links(struct device *dev) { }
-#endif
-
 /**
  * bus_add_device - add device to bus
  * @dev: device being added
@@ -482,15 +466,10 @@ int bus_add_device(struct device *dev)
                                 &dev->bus->p->subsys.kobj, "subsystem");
                 if (error)
                         goto out_subsys;
-                error = make_deprecated_bus_links(dev);
-                if (error)
-                        goto out_deprecated;
                 klist_add_tail(&dev->p->knode_bus, &bus->p->klist_devices);
         }
         return 0;
 
-out_deprecated:
-        sysfs_remove_link(&dev->kobj, "subsystem");
 out_subsys:
         sysfs_remove_link(&bus->p->devices_kset->kobj, dev_name(dev));
 out_id:
@@ -530,7 +509,6 @@ void bus_remove_device(struct device *dev)
 {
         if (dev->bus) {
                 sysfs_remove_link(&dev->kobj, "subsystem");
-                remove_deprecated_bus_links(dev);
                 sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
                                   dev_name(dev));
                 device_remove_attrs(dev->bus, dev);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 8e231d05b400..9c63a5687d69 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -184,9 +184,9 @@ int __class_register(struct class *cls, struct lock_class_key *key)
         if (!cls->dev_kobj)
                 cls->dev_kobj = sysfs_dev_char_kobj;
 
-#if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK)
+#if defined(CONFIG_BLOCK)
         /* let the block class directory show up in the root of sysfs */
-        if (cls != &block_class)
+        if (!sysfs_deprecated || cls != &block_class)
                 cp->class_subsys.kobj.kset = class_kset;
 #else
         cp->class_subsys.kobj.kset = class_kset;
@@ -276,25 +276,6 @@ void class_destroy(struct class *cls)
         class_unregister(cls);
 }
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-char *make_class_name(const char *name, struct kobject *kobj)
-{
-        char *class_name;
-        int size;
-
-        size = strlen(name) + strlen(kobject_name(kobj)) + 2;
-
-        class_name = kmalloc(size, GFP_KERNEL);
-        if (!class_name)
-                return NULL;
-
-        strcpy(class_name, name);
-        strcat(class_name, ":");
-        strcat(class_name, kobject_name(kobj));
-        return class_name;
-}
-#endif
-
 /**
  * class_dev_iter_init - initialize class device iterator
  * @iter: class iterator to initialize
diff --git a/drivers/base/core.c b/drivers/base/core.c
index d1b2c9adc271..2cb49a93b1e6 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -26,6 +26,19 @@
 #include "base.h"
 #include "power/power.h"
 
+#ifdef CONFIG_SYSFS_DEPRECATED
+#ifdef CONFIG_SYSFS_DEPRECATED_V2
+long sysfs_deprecated = 1;
+#else
+long sysfs_deprecated = 0;
+#endif
+static __init int sysfs_deprecated_setup(char *arg)
+{
+        return strict_strtol(arg, 10, &sysfs_deprecated);
+}
+early_param("sysfs.deprecated", sysfs_deprecated_setup);
+#endif
+
 int (*platform_notify)(struct device *dev) = NULL;
 int (*platform_notify_remove)(struct device *dev) = NULL;
 static struct kobject *dev_kobj;
@@ -203,37 +216,6 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
         if (dev->driver)
                 add_uevent_var(env, "DRIVER=%s", dev->driver->name);
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-        if (dev->class) {
-                struct device *parent = dev->parent;
-
-                /* find first bus device in parent chain */
-                while (parent && !parent->bus)
-                        parent = parent->parent;
-                if (parent && parent->bus) {
-                        const char *path;
-
-                        path = kobject_get_path(&parent->kobj, GFP_KERNEL);
-                        if (path) {
-                                add_uevent_var(env, "PHYSDEVPATH=%s", path);
-                                kfree(path);
-                        }
-
-                        add_uevent_var(env, "PHYSDEVBUS=%s", parent->bus->name);
-
-                        if (parent->driver)
-                                add_uevent_var(env, "PHYSDEVDRIVER=%s",
-                                               parent->driver->name);
-                }
-        } else if (dev->bus) {
-                add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
-
-                if (dev->driver)
-                        add_uevent_var(env, "PHYSDEVDRIVER=%s",
-                                       dev->driver->name);
-        }
-#endif
-
         /* have the bus specific function add its stuff */
         if (dev->bus && dev->bus->uevent) {
                 retval = dev->bus->uevent(dev, env);
@@ -578,24 +560,6 @@ void device_initialize(struct device *dev)
         set_dev_node(dev, -1);
 }
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-static struct kobject *get_device_parent(struct device *dev,
-                                         struct device *parent)
-{
-        /* class devices without a parent live in /sys/class/<classname>/ */
-        if (dev->class && (!parent || parent->class != dev->class))
-                return &dev->class->p->class_subsys.kobj;
-        /* all other devices keep their parent */
-        else if (parent)
-                return &parent->kobj;
-
-        return NULL;
-}
-
-static inline void cleanup_device_parent(struct device *dev) {}
-static inline void cleanup_glue_dir(struct device *dev,
-                                    struct kobject *glue_dir) {}
-#else
 static struct kobject *virtual_device_parent(struct device *dev)
 {
         static struct kobject *virtual_dir = NULL;
@@ -666,6 +630,15 @@ static struct kobject *get_device_parent(struct device *dev,
                 struct kobject *parent_kobj;
                 struct kobject *k;
 
+#ifdef CONFIG_BLOCK
+                /* block disks show up in /sys/block */
+                if (sysfs_deprecated && dev->class == &block_class) {
+                        if (parent && parent->class == &block_class)
+                                return &parent->kobj;
+                        return &block_class.p->class_subsys.kobj;
+                }
+#endif
+
                 /*
                  * If we have no parent, we live in "virtual".
                  * Class-devices with a non class-device as parent, live
@@ -719,7 +692,6 @@ static void cleanup_device_parent(struct device *dev)
 {
         cleanup_glue_dir(dev, dev->kobj.parent);
 }
-#endif
 
 static void setup_parent(struct device *dev, struct device *parent)
 {
@@ -742,70 +714,29 @@ static int device_add_class_symlinks(struct device *dev)
         if (error)
                 goto out;
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-        /* stacked class devices need a symlink in the class directory */
-        if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
-            device_is_not_partition(dev)) {
-                error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
-                                          &dev->kobj, dev_name(dev));
-                if (error)
-                        goto out_subsys;
-        }
-
         if (dev->parent && device_is_not_partition(dev)) {
-                struct device *parent = dev->parent;
-                char *class_name;
-
-                /*
-                 * stacked class devices have the 'device' link
-                 * pointing to the bus device instead of the parent
-                 */
-                while (parent->class && !parent->bus && parent->parent)
-                        parent = parent->parent;
-
-                error = sysfs_create_link(&dev->kobj,
-                                          &parent->kobj,
+                error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
                                           "device");
                 if (error)
-                        goto out_busid;
-
-                class_name = make_class_name(dev->class->name,
-                                                &dev->kobj);
-                if (class_name)
-                        error = sysfs_create_link(&dev->parent->kobj,
-                                                &dev->kobj, class_name);
-                kfree(class_name);
-                if (error)
-                        goto out_device;
+                        goto out_subsys;
         }
-        return 0;
 
-out_device:
-        if (dev->parent && device_is_not_partition(dev))
-                sysfs_remove_link(&dev->kobj, "device");
-out_busid:
-        if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
-            device_is_not_partition(dev))
-                sysfs_delete_link(&dev->class->p->class_subsys.kobj, &dev->kobj,
-                                  dev_name(dev));
-#else
+#ifdef CONFIG_BLOCK
+        /* /sys/block has directories and does not need symlinks */
+        if (sysfs_deprecated && dev->class == &block_class)
+                return 0;
+#endif
+
         /* link in the class directory pointing to the device */
         error = sysfs_create_link(&dev->class->p->class_subsys.kobj,
                                   &dev->kobj, dev_name(dev));
         if (error)
-                goto out_subsys;
+                goto out_device;
 
-        if (dev->parent && device_is_not_partition(dev)) {
-                error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
-                                          "device");
-                if (error)
-                        goto out_busid;
-        }
         return 0;
 
-out_busid:
-        sysfs_delete_link(&dev->class->p->class_subsys.kobj, &dev->kobj, dev_name(dev));
-#endif
+out_device:
+        sysfs_remove_link(&dev->kobj, "device");
 
 out_subsys:
         sysfs_remove_link(&dev->kobj, "subsystem");
@@ -818,30 +749,14 @@ static void device_remove_class_symlinks(struct device *dev)
         if (!dev->class)
                 return;
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-        if (dev->parent && device_is_not_partition(dev)) {
-                char *class_name;
-
-                class_name = make_class_name(dev->class->name, &dev->kobj);
-                if (class_name) {
-                        sysfs_remove_link(&dev->parent->kobj, class_name);
-                        kfree(class_name);
-                }
-                sysfs_remove_link(&dev->kobj, "device");
-        }
-
-        if (dev->kobj.parent != &dev->class->p->class_subsys.kobj &&
-            device_is_not_partition(dev))
-                sysfs_delete_link(&dev->class->p->class_subsys.kobj, &dev->kobj,
-                                  dev_name(dev));
-#else
         if (dev->parent && device_is_not_partition(dev))
                 sysfs_remove_link(&dev->kobj, "device");
-
-        sysfs_delete_link(&dev->class->p->class_subsys.kobj, &dev->kobj, dev_name(dev));
-#endif
-
         sysfs_remove_link(&dev->kobj, "subsystem");
+#ifdef CONFIG_BLOCK
+        if (sysfs_deprecated && dev->class == &block_class)
+                return;
+#endif
+        sysfs_delete_link(&dev->class->p->class_subsys.kobj, &dev->kobj, dev_name(dev));
 }
 
 /**
@@ -1613,41 +1528,23 @@ int device_rename(struct device *dev, const char *new_name)
         pr_debug("device: '%s': %s: renaming to '%s'\n", dev_name(dev),
                  __func__, new_name);
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-        if ((dev->class) && (dev->parent))
-                old_class_name = make_class_name(dev->class->name, &dev->kobj);
-#endif
-
         old_device_name = kstrdup(dev_name(dev), GFP_KERNEL);
         if (!old_device_name) {
                 error = -ENOMEM;
                 goto out;
         }
 
-#ifndef CONFIG_SYSFS_DEPRECATED
         if (dev->class) {
                 error = sysfs_rename_link(&dev->class->p->class_subsys.kobj,
                         &dev->kobj, old_device_name, new_name);
                 if (error)
                         goto out;
         }
-#endif
+
         error = kobject_rename(&dev->kobj, new_name);
         if (error)
                 goto out;
 
-#ifdef CONFIG_SYSFS_DEPRECATED
-        if (old_class_name) {
-                new_class_name = make_class_name(dev->class->name, &dev->kobj);
-                if (new_class_name) {
-                        error = sysfs_rename_link(&dev->parent->kobj,
-                                                  &dev->kobj,
-                                                  old_class_name,
-                                                  new_class_name);
-                }
-        }
-#endif
-
 out:
         put_device(dev);
 
@@ -1664,40 +1561,13 @@ static int device_move_class_links(struct device *dev,
                                    struct device *new_parent)
 {
         int error = 0;
-#ifdef CONFIG_SYSFS_DEPRECATED
-        char *class_name;
 
-        class_name = make_class_name(dev->class->name, &dev->kobj);
-        if (!class_name) {
-                error = -ENOMEM;
-                goto out;
-        }
-        if (old_parent) {
-                sysfs_remove_link(&dev->kobj, "device");
-                sysfs_remove_link(&old_parent->kobj, class_name);
-        }
-        if (new_parent) {
-                error = sysfs_create_link(&dev->kobj, &new_parent->kobj,
-                                          "device");
-                if (error)
-                        goto out;
-                error = sysfs_create_link(&new_parent->kobj, &dev->kobj,
-                                          class_name);
-                if (error)
-                        sysfs_remove_link(&dev->kobj, "device");
-        } else
-                error = 0;
-out:
-        kfree(class_name);
-        return error;
-#else
         if (old_parent)
                 sysfs_remove_link(&dev->kobj, "device");
         if (new_parent)
                 error = sysfs_create_link(&dev->kobj, &new_parent->kobj,
                                           "device");
         return error;
-#endif
 }
 
 /**
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 933442f40321..cafeaaf0428f 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -27,6 +27,8 @@
 #include <asm/atomic.h>
 #include <asm/uaccess.h>
 
+static DEFINE_MUTEX(mem_sysfs_mutex);
+
 #define MEMORY_CLASS_NAME       "memory"
 
 static struct sysdev_class memory_sysdev_class = {
@@ -435,6 +437,45 @@ int __weak arch_get_memory_phys_device(unsigned long start_pfn)
         return 0;
 }
 
+struct memory_block *find_memory_block_hinted(struct mem_section *section,
+                                              struct memory_block *hint)
+{
+        struct kobject *kobj;
+        struct sys_device *sysdev;
+        struct memory_block *mem;
+        char name[sizeof(MEMORY_CLASS_NAME) + 9 + 1];
+
+        kobj = hint ? &hint->sysdev.kobj : NULL;
+
+        /*
+         * This only works because we know that section == sysdev->id
+         * slightly redundant with sysdev_register()
+         */
+        sprintf(&name[0], "%s%d", MEMORY_CLASS_NAME, __section_nr(section));
+
+        kobj = kset_find_obj_hinted(&memory_sysdev_class.kset, name, kobj);
+        if (!kobj)
+                return NULL;
+
+        sysdev = container_of(kobj, struct sys_device, kobj);
+        mem = container_of(sysdev, struct memory_block, sysdev);
+
+        return mem;
+}
+
+/*
+ * For now, we have a linear search to go find the appropriate
+ * memory_block corresponding to a particular phys_index. If
+ * this gets to be a real problem, we can always use a radix
+ * tree or something here.
+ *
+ * This could be made generic for all sysdev classes.
+ */
+struct memory_block *find_memory_block(struct mem_section *section)
+{
+        return find_memory_block_hinted(section, NULL);
+}
+
 static int add_memory_block(int nid, struct mem_section *section,
                         unsigned long state, enum mem_add_context context)
 {
@@ -445,8 +486,11 @@ static int add_memory_block(int nid, struct mem_section *section,
         if (!mem)
                 return -ENOMEM;
 
+        mutex_lock(&mem_sysfs_mutex);
+
         mem->phys_index = __section_nr(section);
         mem->state = state;
+        mem->section_count++;
         mutex_init(&mem->state_mutex);
         start_pfn = section_nr_to_pfn(mem->phys_index);
         mem->phys_device = arch_get_memory_phys_device(start_pfn);
@@ -465,53 +509,29 @@ static int add_memory_block(int nid, struct mem_section *section,
                         ret = register_mem_sect_under_node(mem, nid);
         }
 
+        mutex_unlock(&mem_sysfs_mutex);
         return ret;
 }
 
-/*
- * For now, we have a linear search to go find the appropriate
- * memory_block corresponding to a particular phys_index. If
- * this gets to be a real problem, we can always use a radix
- * tree or something here.
- *
- * This could be made generic for all sysdev classes.
- */
-struct memory_block *find_memory_block(struct mem_section *section)
-{
-        struct kobject *kobj;
-        struct sys_device *sysdev;
-        struct memory_block *mem;
-        char name[sizeof(MEMORY_CLASS_NAME) + 9 + 1];
-
-        /*
-         * This only works because we know that section == sysdev->id
-         * slightly redundant with sysdev_register()
-         */
-        sprintf(&name[0], "%s%d", MEMORY_CLASS_NAME, __section_nr(section));
-
-        kobj = kset_find_obj(&memory_sysdev_class.kset, name);
-        if (!kobj)
-                return NULL;
-
-        sysdev = container_of(kobj, struct sys_device, kobj);
-        mem = container_of(sysdev, struct memory_block, sysdev);
-
-        return mem;
-}
-
 int remove_memory_block(unsigned long node_id, struct mem_section *section,
                 int phys_device)
 {
         struct memory_block *mem;
 
+        mutex_lock(&mem_sysfs_mutex);
         mem = find_memory_block(section);
-        unregister_mem_sect_under_nodes(mem);
-        mem_remove_simple_file(mem, phys_index);
-        mem_remove_simple_file(mem, state);
-        mem_remove_simple_file(mem, phys_device);
-        mem_remove_simple_file(mem, removable);
-        unregister_memory(mem, section);
 
+        mem->section_count--;
+        if (mem->section_count == 0) {
+                unregister_mem_sect_under_nodes(mem);
+                mem_remove_simple_file(mem, phys_index);
+                mem_remove_simple_file(mem, state);
+                mem_remove_simple_file(mem, phys_device);
+                mem_remove_simple_file(mem, removable);
+                unregister_memory(mem, section);
+        }
+
+        mutex_unlock(&mem_sysfs_mutex);
         return 0;
 }
 
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 2872e86837b2..ee53558b452f 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -409,25 +409,27 @@ static int link_mem_sections(int nid)
         unsigned long start_pfn = NODE_DATA(nid)->node_start_pfn;
         unsigned long end_pfn = start_pfn + NODE_DATA(nid)->node_spanned_pages;
         unsigned long pfn;
+        struct memory_block *mem_blk = NULL;
         int err = 0;
 
         for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
                 unsigned long section_nr = pfn_to_section_nr(pfn);
                 struct mem_section *mem_sect;
-                struct memory_block *mem_blk;
                 int ret;
 
                 if (!present_section_nr(section_nr))
                         continue;
                 mem_sect = __nr_to_section(section_nr);
-                mem_blk = find_memory_block(mem_sect);
+                mem_blk = find_memory_block_hinted(mem_sect, mem_blk);
                 ret = register_mem_sect_under_node(mem_blk, nid);
                 if (!err)
                         err = ret;
 
                 /* discard ref obtained in find_memory_block() */
-                kobject_put(&mem_blk->sysdev.kobj);
         }
+
+        if (mem_blk)
+                kobject_put(&mem_blk->sysdev.kobj);
         return err;
 }
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index c6c933f58102..3966e62ad019 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -192,6 +192,9 @@ int platform_device_add_resources(struct platform_device *pdev,
 {
         struct resource *r;
 
+        if (!res)
+                return 0;
+
         r = kmemdup(res, sizeof(struct resource) * num, GFP_KERNEL);
         if (r) {
                 pdev->resource = r;
@@ -215,8 +218,12 @@ EXPORT_SYMBOL_GPL(platform_device_add_resources);
 int platform_device_add_data(struct platform_device *pdev, const void *data,
                              size_t size)
 {
-        void *d = kmemdup(data, size, GFP_KERNEL);
+        void *d;
+
+        if (!data)
+                return 0;
 
+        d = kmemdup(data, size, GFP_KERNEL);
         if (d) {
                 pdev->dev.platform_data = d;
                 return 0;
@@ -373,17 +380,13 @@ struct platform_device *__init_or_module platform_device_register_resndata(
 
         pdev->dev.parent = parent;
 
-        if (res) {
-                ret = platform_device_add_resources(pdev, res, num);
-                if (ret)
-                        goto err;
-        }
+        ret = platform_device_add_resources(pdev, res, num);
+        if (ret)
+                goto err;
 
-        if (data) {
-                ret = platform_device_add_data(pdev, data, size);
-                if (ret)
-                        goto err;
-        }
+        ret = platform_device_add_data(pdev, data, size);
+        if (ret)
+                goto err;
 
         ret = platform_device_add(pdev);
         if (ret) {
@@ -488,12 +491,12 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
          * if the probe was successful, and make sure any forced probes of
          * new devices fail.
          */
-        spin_lock(&platform_bus_type.p->klist_drivers.k_lock);
+        spin_lock(&drv->driver.bus->p->klist_drivers.k_lock);
         drv->probe = NULL;
         if (code == 0 && list_empty(&drv->driver.p->klist_devices.k_list))
                 retval = -ENODEV;
         drv->driver.probe = platform_drv_probe_fail;
-        spin_unlock(&platform_bus_type.p->klist_drivers.k_lock);
+        spin_unlock(&drv->driver.bus->p->klist_drivers.k_lock);
 
         if (code != retval)
                 platform_driver_unregister(drv);
@@ -530,17 +533,13 @@ struct platform_device * __init_or_module platform_create_bundle(
                 goto err_out;
         }
 
-        if (res) {
-                error = platform_device_add_resources(pdev, res, n_res);
-                if (error)
-                        goto err_pdev_put;
-        }
+        error = platform_device_add_resources(pdev, res, n_res);
+        if (error)
+                goto err_pdev_put;
 
-        if (data) {
-                error = platform_device_add_data(pdev, data, size);
-                if (error)
-                        goto err_pdev_put;
-        }
+        error = platform_device_add_data(pdev, data, size);
+        if (error)
+                goto err_pdev_put;
 
         error = platform_device_add(pdev);
         if (error)
@@ -976,6 +975,41 @@ struct bus_type platform_bus_type = {
 };
 EXPORT_SYMBOL_GPL(platform_bus_type);
 
+/**
+ * platform_bus_get_pm_ops() - return pointer to busses dev_pm_ops
+ *
+ * This function can be used by platform code to get the current
+ * set of dev_pm_ops functions used by the platform_bus_type.
+ */
+const struct dev_pm_ops * __init platform_bus_get_pm_ops(void)
+{
+        return platform_bus_type.pm;
+}
+
+/**
+ * platform_bus_set_pm_ops() - update dev_pm_ops for the platform_bus_type
+ *
+ * @pm: pointer to new dev_pm_ops struct to be used for platform_bus_type
+ *
+ * Platform code can override the dev_pm_ops methods of
+ * platform_bus_type by using this function.  It is expected that
+ * platform code will first do a platform_bus_get_pm_ops(), then
+ * kmemdup it, then customize selected methods and pass a pointer to
+ * the new struct dev_pm_ops to this function.
+ *
+ * Since platform-specific code is customizing methods for *all*
+ * devices (not just platform-specific devices) it is expected that
+ * any custom overrides of these functions will keep existing behavior
+ * and simply extend it.  For example, any customization of the
+ * runtime PM methods should continue to call the pm_generic_*
+ * functions as the default ones do in addition to the
+ * platform-specific behavior.
+ */
+void __init platform_bus_set_pm_ops(const struct dev_pm_ops *pm)
+{
+        platform_bus_type.pm = pm;
+}
+
 int __init platform_bus_init(void)
 {
         int error;
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9354dc10a363..1667aaf4fde6 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -432,13 +432,13 @@ int sysdev_suspend(pm_message_t state)
         /* resume current sysdev */
 cls_driver:
         drv = NULL;
-        printk(KERN_ERR "Class suspend failed for %s\n",
-                kobject_name(&sysdev->kobj));
+        printk(KERN_ERR "Class suspend failed for %s: %d\n",
+                kobject_name(&sysdev->kobj), ret);
 
 aux_driver:
         if (drv)
-                printk(KERN_ERR "Class driver suspend failed for %s\n",
-                                kobject_name(&sysdev->kobj));
+                printk(KERN_ERR "Class driver suspend failed for %s: %d\n",
+                                kobject_name(&sysdev->kobj), ret);
         list_for_each_entry(err_drv, &cls->drivers, entry) {
                 if (err_drv == drv)
                         break;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index b74331260744..db2fbe2d4146 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -248,15 +248,15 @@ config CS5535_CLOCK_EVENT_SRC
           generic PIT, and are suitable for use as high-res timers.
 
 config HP_ILO
-        tristate "Channel interface driver for HP iLO/iLO2 processor"
+        tristate "Channel interface driver for the HP iLO processor"
         depends on PCI
         default n
         help
           The channel interface driver allows applications to communicate
-          with iLO/iLO2 management processors present on HP ProLiant
-          servers.  Upon loading, the driver creates /dev/hpilo/dXccbN files,
-          which can be used to gather data from the management processor,
-          via read and write system calls.
+          with iLO management processors present on HP ProLiant servers.
+          Upon loading, the driver creates /dev/hpilo/dXccbN files, which
+          can be used to gather data from the management processor, via
+          read and write system calls.
 
           To compile this driver as a module, choose M here: the
           module will be called hpilo.
@@ -390,6 +390,18 @@ config BMP085
           To compile this driver as a module, choose M here: the
           module will be called bmp085.
 
+config PCH_PHUB
+        tristate "PCH Packet Hub of Intel Topcliff"
+        depends on PCI
+        help
+          This driver is for PCH(Platform controller Hub) PHUB(Packet Hub) of
+          Intel Topcliff which is an IOH(Input/Output Hub) for x86 embedded
+          processor. The Topcliff has MAC address and Option ROM data in SROM.
+          This driver can access MAC address and Option ROM data in SROM.
+
+          To compile this driver as a module, choose M here: the module will
+          be called pch_phub.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 42eab95cde2a..9f2986b4da2f 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -35,3 +35,4 @@ obj-y				+= eeprom/
 obj-y                           += cb710/
 obj-$(CONFIG_VMWARE_BALLOON)    += vmw_balloon.o
 obj-$(CONFIG_ARM_CHARLCD)       += arm-charlcd.o
+obj-$(CONFIG_PCH_PHUB)          += pch_phub.o
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index 69c1f2fca141..fffc227181b0 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -1,5 +1,5 @@
 /*
- * Driver for HP iLO/iLO2 management processor.
+ * Driver for the HP iLO management processor.
  *
  * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
  *      David Altobelli <david.altobelli@hp.com>
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
new file mode 100644
index 000000000000..744b804aca15
--- /dev/null
+++ b/drivers/misc/pch_phub.c
@@ -0,0 +1,717 @@
+/*
+ * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/string.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/if_ether.h>
+#include <linux/ctype.h>
+
+#define PHUB_STATUS 0x00                /* Status Register offset */
+#define PHUB_CONTROL 0x04               /* Control Register offset */
+#define PHUB_TIMEOUT 0x05               /* Time out value for Status Register */
+#define PCH_PHUB_ROM_WRITE_ENABLE 0x01  /* Enabling for writing ROM */
+#define PCH_PHUB_ROM_WRITE_DISABLE 0x00 /* Disabling for writing ROM */
+#define PCH_PHUB_ROM_START_ADDR 0x14    /* ROM data area start address offset */
+
+/* MAX number of INT_REDUCE_CONTROL registers */
+#define MAX_NUM_INT_REDUCE_CONTROL_REG 128
+#define PCI_DEVICE_ID_PCH1_PHUB 0x8801
+#define PCH_MINOR_NOS 1
+#define CLKCFG_CAN_50MHZ 0x12000000
+#define CLKCFG_CANCLK_MASK 0xFF000000
+
+/* SROM ACCESS Macro */
+#define PCH_WORD_ADDR_MASK (~((1 << 2) - 1))
+
+/* Registers address offset */
+#define PCH_PHUB_ID_REG                         0x0000
+#define PCH_PHUB_QUEUE_PRI_VAL_REG              0x0004
+#define PCH_PHUB_RC_QUEUE_MAXSIZE_REG           0x0008
+#define PCH_PHUB_BRI_QUEUE_MAXSIZE_REG          0x000C
+#define PCH_PHUB_COMP_RESP_TIMEOUT_REG          0x0010
+#define PCH_PHUB_BUS_SLAVE_CONTROL_REG          0x0014
+#define PCH_PHUB_DEADLOCK_AVOID_TYPE_REG        0x0018
+#define PCH_PHUB_INTPIN_REG_WPERMIT_REG0        0x0020
+#define PCH_PHUB_INTPIN_REG_WPERMIT_REG1        0x0024
+#define PCH_PHUB_INTPIN_REG_WPERMIT_REG2        0x0028
+#define PCH_PHUB_INTPIN_REG_WPERMIT_REG3        0x002C
+#define PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE    0x0040
+#define CLKCFG_REG_OFFSET                       0x500
+
+#define PCH_PHUB_OROM_SIZE 15360
+
+/**
+ * struct pch_phub_reg - PHUB register structure
+ * @phub_id_reg:                        PHUB_ID register val
+ * @q_pri_val_reg:                      QUEUE_PRI_VAL register val
+ * @rc_q_maxsize_reg:                   RC_QUEUE_MAXSIZE register val
+ * @bri_q_maxsize_reg:                  BRI_QUEUE_MAXSIZE register val
+ * @comp_resp_timeout_reg:              COMP_RESP_TIMEOUT register val
+ * @bus_slave_control_reg:              BUS_SLAVE_CONTROL_REG register val
+ * @deadlock_avoid_type_reg:            DEADLOCK_AVOID_TYPE register val
+ * @intpin_reg_wpermit_reg0:            INTPIN_REG_WPERMIT register 0 val
+ * @intpin_reg_wpermit_reg1:            INTPIN_REG_WPERMIT register 1 val
+ * @intpin_reg_wpermit_reg2:            INTPIN_REG_WPERMIT register 2 val
+ * @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
+ * @pch_phub_base_address:              Register base address
+ * @pch_phub_extrom_base_address:       external rom base address
+ */
+struct pch_phub_reg {
+        u32 phub_id_reg;
+        u32 q_pri_val_reg;
+        u32 rc_q_maxsize_reg;
+        u32 bri_q_maxsize_reg;
+        u32 comp_resp_timeout_reg;
+        u32 bus_slave_control_reg;
+        u32 deadlock_avoid_type_reg;
+        u32 intpin_reg_wpermit_reg0;
+        u32 intpin_reg_wpermit_reg1;
+        u32 intpin_reg_wpermit_reg2;
+        u32 intpin_reg_wpermit_reg3;
+        u32 int_reduce_control_reg[MAX_NUM_INT_REDUCE_CONTROL_REG];
+        u32 clkcfg_reg;
+        void __iomem *pch_phub_base_address;
+        void __iomem *pch_phub_extrom_base_address;
+};
+
+/* SROM SPEC for MAC address assignment offset */
+static const int pch_phub_mac_offset[ETH_ALEN] = {0x3, 0x2, 0x1, 0x0, 0xb, 0xa};
+
+static DEFINE_MUTEX(pch_phub_mutex);
+
+/**
+ * pch_phub_read_modify_write_reg() - Reading modifying and writing register
+ * @reg_addr_offset:    Register offset address value.
+ * @data:               Writing value.
+ * @mask:               Mask value.
+ */
+static void pch_phub_read_modify_write_reg(struct pch_phub_reg *chip,
+                                           unsigned int reg_addr_offset,
+                                           unsigned int data, unsigned int mask)
+{
+        void __iomem *reg_addr = chip->pch_phub_base_address + reg_addr_offset;
+        iowrite32(((ioread32(reg_addr) & ~mask)) | data, reg_addr);
+}
+
+/* pch_phub_save_reg_conf - saves register configuration */
+static void pch_phub_save_reg_conf(struct pci_dev *pdev)
+{
+        unsigned int i;
+        struct pch_phub_reg *chip = pci_get_drvdata(pdev);
+
+        void __iomem *p = chip->pch_phub_base_address;
+
+        chip->phub_id_reg = ioread32(p + PCH_PHUB_ID_REG);
+        chip->q_pri_val_reg = ioread32(p + PCH_PHUB_QUEUE_PRI_VAL_REG);
+        chip->rc_q_maxsize_reg = ioread32(p + PCH_PHUB_RC_QUEUE_MAXSIZE_REG);
+        chip->bri_q_maxsize_reg = ioread32(p + PCH_PHUB_BRI_QUEUE_MAXSIZE_REG);
+        chip->comp_resp_timeout_reg =
+                                ioread32(p + PCH_PHUB_COMP_RESP_TIMEOUT_REG);
+        chip->bus_slave_control_reg =
+                                ioread32(p + PCH_PHUB_BUS_SLAVE_CONTROL_REG);
+        chip->deadlock_avoid_type_reg =
+                                ioread32(p + PCH_PHUB_DEADLOCK_AVOID_TYPE_REG);
+        chip->intpin_reg_wpermit_reg0 =
+                                ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG0);
+        chip->intpin_reg_wpermit_reg1 =
+                                ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG1);
+        chip->intpin_reg_wpermit_reg2 =
+                                ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG2);
+        chip->intpin_reg_wpermit_reg3 =
+                                ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG3);
+        dev_dbg(&pdev->dev, "%s : "
+                "chip->phub_id_reg=%x, "
+                "chip->q_pri_val_reg=%x, "
+                "chip->rc_q_maxsize_reg=%x, "
+                "chip->bri_q_maxsize_reg=%x, "
+                "chip->comp_resp_timeout_reg=%x, "
+                "chip->bus_slave_control_reg=%x, "
+                "chip->deadlock_avoid_type_reg=%x, "
+                "chip->intpin_reg_wpermit_reg0=%x, "
+                "chip->intpin_reg_wpermit_reg1=%x, "
+                "chip->intpin_reg_wpermit_reg2=%x, "
+                "chip->intpin_reg_wpermit_reg3=%x\n", __func__,
+                chip->phub_id_reg,
+                chip->q_pri_val_reg,
+                chip->rc_q_maxsize_reg,
+                chip->bri_q_maxsize_reg,
+                chip->comp_resp_timeout_reg,
+                chip->bus_slave_control_reg,
+                chip->deadlock_avoid_type_reg,
+                chip->intpin_reg_wpermit_reg0,
+                chip->intpin_reg_wpermit_reg1,
+                chip->intpin_reg_wpermit_reg2,
+                chip->intpin_reg_wpermit_reg3);
+        for (i = 0; i < MAX_NUM_INT_REDUCE_CONTROL_REG; i++) {
+                chip->int_reduce_control_reg[i] =
+                    ioread32(p + PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE + 4 * i);
+                dev_dbg(&pdev->dev, "%s : "
+                        "chip->int_reduce_control_reg[%d]=%x\n",
+                        __func__, i, chip->int_reduce_control_reg[i]);
+        }
+        chip->clkcfg_reg = ioread32(p + CLKCFG_REG_OFFSET);
+}
+
+/* pch_phub_restore_reg_conf - restore register configuration */
+static void pch_phub_restore_reg_conf(struct pci_dev *pdev)
+{
+        unsigned int i;
+        struct pch_phub_reg *chip = pci_get_drvdata(pdev);
+        void __iomem *p;
+        p = chip->pch_phub_base_address;
+
+        iowrite32(chip->phub_id_reg, p + PCH_PHUB_ID_REG);
+        iowrite32(chip->q_pri_val_reg, p + PCH_PHUB_QUEUE_PRI_VAL_REG);
+        iowrite32(chip->rc_q_maxsize_reg, p + PCH_PHUB_RC_QUEUE_MAXSIZE_REG);
+        iowrite32(chip->bri_q_maxsize_reg, p + PCH_PHUB_BRI_QUEUE_MAXSIZE_REG);
+        iowrite32(chip->comp_resp_timeout_reg,
+                                        p + PCH_PHUB_COMP_RESP_TIMEOUT_REG);
+        iowrite32(chip->bus_slave_control_reg,
+                                        p + PCH_PHUB_BUS_SLAVE_CONTROL_REG);
+        iowrite32(chip->deadlock_avoid_type_reg,
+                                        p + PCH_PHUB_DEADLOCK_AVOID_TYPE_REG);
+        iowrite32(chip->intpin_reg_wpermit_reg0,
+                                        p + PCH_PHUB_INTPIN_REG_WPERMIT_REG0);
+        iowrite32(chip->intpin_reg_wpermit_reg1,
+                                        p + PCH_PHUB_INTPIN_REG_WPERMIT_REG1);
+        iowrite32(chip->intpin_reg_wpermit_reg2,
+                                        p + PCH_PHUB_INTPIN_REG_WPERMIT_REG2);
+        iowrite32(chip->intpin_reg_wpermit_reg3,
+                                        p + PCH_PHUB_INTPIN_REG_WPERMIT_REG3);
+        dev_dbg(&pdev->dev, "%s : "
+                "chip->phub_id_reg=%x, "
+                "chip->q_pri_val_reg=%x, "
+                "chip->rc_q_maxsize_reg=%x, "
+                "chip->bri_q_maxsize_reg=%x, "
+                "chip->comp_resp_timeout_reg=%x, "
+                "chip->bus_slave_control_reg=%x, "
+                "chip->deadlock_avoid_type_reg=%x, "
+                "chip->intpin_reg_wpermit_reg0=%x, "
+                "chip->intpin_reg_wpermit_reg1=%x, "
+                "chip->intpin_reg_wpermit_reg2=%x, "
+                "chip->intpin_reg_wpermit_reg3=%x\n", __func__,
+                chip->phub_id_reg,
+                chip->q_pri_val_reg,
+                chip->rc_q_maxsize_reg,
+                chip->bri_q_maxsize_reg,
+                chip->comp_resp_timeout_reg,
+                chip->bus_slave_control_reg,
+                chip->deadlock_avoid_type_reg,
+                chip->intpin_reg_wpermit_reg0,
+                chip->intpin_reg_wpermit_reg1,
+                chip->intpin_reg_wpermit_reg2,
+                chip->intpin_reg_wpermit_reg3);
+        for (i = 0; i < MAX_NUM_INT_REDUCE_CONTROL_REG; i++) {
+                iowrite32(chip->int_reduce_control_reg[i],
+                        p + PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE + 4 * i);
+                dev_dbg(&pdev->dev, "%s : "
+                        "chip->int_reduce_control_reg[%d]=%x\n",
+                        __func__, i, chip->int_reduce_control_reg[i]);
+        }
+
+        iowrite32(chip->clkcfg_reg, p + CLKCFG_REG_OFFSET);
+}
+
+/**
+ * pch_phub_read_serial_rom() - Reading Serial ROM
+ * @offset_address:     Serial ROM offset address to read.
+ * @data:               Read buffer for specified Serial ROM value.
+ */
+static void pch_phub_read_serial_rom(struct pch_phub_reg *chip,
+                                     unsigned int offset_address, u8 *data)
+{
+        void __iomem *mem_addr = chip->pch_phub_extrom_base_address +
+                                                                offset_address;
+
+        *data = ioread8(mem_addr);
+}
+
+/**
+ * pch_phub_write_serial_rom() - Writing Serial ROM
+ * @offset_address:     Serial ROM offset address.
+ * @data:               Serial ROM value to write.
+ */
+static int pch_phub_write_serial_rom(struct pch_phub_reg *chip,
+                                     unsigned int offset_address, u8 data)
+{
+        void __iomem *mem_addr = chip->pch_phub_extrom_base_address +
+                                        (offset_address & PCH_WORD_ADDR_MASK);
+        int i;
+        unsigned int word_data;
+        unsigned int pos;
+        unsigned int mask;
+        pos = (offset_address % 4) * 8;
+        mask = ~(0xFF << pos);
+
+        iowrite32(PCH_PHUB_ROM_WRITE_ENABLE,
+                        chip->pch_phub_extrom_base_address + PHUB_CONTROL);
+
+        word_data = ioread32(mem_addr);
+        iowrite32((word_data & mask) | (u32)data << pos, mem_addr);
+
+        i = 0;
+        while (ioread8(chip->pch_phub_extrom_base_address +
+                                                PHUB_STATUS) != 0x00) {
+                msleep(1);
+                if (i == PHUB_TIMEOUT)
+                        return -ETIMEDOUT;
+                i++;
+        }
+
+        iowrite32(PCH_PHUB_ROM_WRITE_DISABLE,
+                        chip->pch_phub_extrom_base_address + PHUB_CONTROL);
+
+        return 0;
+}
+
+/**
+ * pch_phub_read_serial_rom_val() - Read Serial ROM value
+ * @offset_address:     Serial ROM address offset value.
+ * @data:               Serial ROM value to read.
+ */
+static void pch_phub_read_serial_rom_val(struct pch_phub_reg *chip,
+                                         unsigned int offset_address, u8 *data)
+{
+        unsigned int mem_addr;
+
+        mem_addr = PCH_PHUB_ROM_START_ADDR +
+                        pch_phub_mac_offset[offset_address];
+
+        pch_phub_read_serial_rom(chip, mem_addr, data);
+}
+
+/**
+ * pch_phub_write_serial_rom_val() - writing Serial ROM value
+ * @offset_address:     Serial ROM address offset value.
+ * @data:               Serial ROM value.
+ */
+static int pch_phub_write_serial_rom_val(struct pch_phub_reg *chip,
+                                         unsigned int offset_address, u8 data)
+{
+        int retval;
+        unsigned int mem_addr;
+
+        mem_addr = PCH_PHUB_ROM_START_ADDR +
+                        pch_phub_mac_offset[offset_address];
+
+        retval = pch_phub_write_serial_rom(chip, mem_addr, data);
+
+        return retval;
+}
+
+/* pch_phub_gbe_serial_rom_conf - makes Serial ROM header format configuration
+ * for Gigabit Ethernet MAC address
+ */
+static int pch_phub_gbe_serial_rom_conf(struct pch_phub_reg *chip)
+{
+        int retval;
+
+        retval = pch_phub_write_serial_rom(chip, 0x0b, 0xbc);
+        retval |= pch_phub_write_serial_rom(chip, 0x0a, 0x10);
+        retval |= pch_phub_write_serial_rom(chip, 0x09, 0x01);
+        retval |= pch_phub_write_serial_rom(chip, 0x08, 0x02);
+
+        retval |= pch_phub_write_serial_rom(chip, 0x0f, 0x00);
+        retval |= pch_phub_write_serial_rom(chip, 0x0e, 0x00);
+        retval |= pch_phub_write_serial_rom(chip, 0x0d, 0x00);
+        retval |= pch_phub_write_serial_rom(chip, 0x0c, 0x80);
+
+        retval |= pch_phub_write_serial_rom(chip, 0x13, 0xbc);
+        retval |= pch_phub_write_serial_rom(chip, 0x12, 0x10);
+        retval |= pch_phub_write_serial_rom(chip, 0x11, 0x01);
+        retval |= pch_phub_write_serial_rom(chip, 0x10, 0x18);
+
+        retval |= pch_phub_write_serial_rom(chip, 0x1b, 0xbc);
+        retval |= pch_phub_write_serial_rom(chip, 0x1a, 0x10);
+        retval |= pch_phub_write_serial_rom(chip, 0x19, 0x01);
+        retval |= pch_phub_write_serial_rom(chip, 0x18, 0x19);
+
+        retval |= pch_phub_write_serial_rom(chip, 0x23, 0xbc);
+        retval |= pch_phub_write_serial_rom(chip, 0x22, 0x10);
+        retval |= pch_phub_write_serial_rom(chip, 0x21, 0x01);
+        retval |= pch_phub_write_serial_rom(chip, 0x20, 0x3a);
+
+        retval |= pch_phub_write_serial_rom(chip, 0x27, 0x01);
+        retval |= pch_phub_write_serial_rom(chip, 0x26, 0x00);
+        retval |= pch_phub_write_serial_rom(chip, 0x25, 0x00);
+        retval |= pch_phub_write_serial_rom(chip, 0x24, 0x00);
+
+        return retval;
+}
+
+/**
+ * pch_phub_read_gbe_mac_addr() - Read Gigabit Ethernet MAC address
+ * @offset_address:     Gigabit Ethernet MAC address offset value.
+ * @data:               Buffer of the Gigabit Ethernet MAC address value.
+ */
+static void pch_phub_read_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data)
+{
+        int i;
+        for (i = 0; i < ETH_ALEN; i++)
+                pch_phub_read_serial_rom_val(chip, i, &data[i]);
+}
+
+/**
+ * pch_phub_write_gbe_mac_addr() - Write MAC address
+ * @offset_address:     Gigabit Ethernet MAC address offset value.
+ * @data:               Gigabit Ethernet MAC address value.
+ */
+static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data)
+{
+        int retval;
+        int i;
+
+        retval = pch_phub_gbe_serial_rom_conf(chip);
+        if (retval)
+                return retval;
+
+        for (i = 0; i < ETH_ALEN; i++) {
+                retval = pch_phub_write_serial_rom_val(chip, i, data[i]);
+                if (retval)
+                        return retval;
+        }
+
+        return retval;
+}
+
+static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
+                                 struct bin_attribute *attr, char *buf,
+                                 loff_t off, size_t count)
+{
+        unsigned int rom_signature;
+        unsigned char rom_length;
+        unsigned int tmp;
+        unsigned int addr_offset;
+        unsigned int orom_size;
+        int ret;
+        int err;
+
+        struct pch_phub_reg *chip =
+                dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+        ret = mutex_lock_interruptible(&pch_phub_mutex);
+        if (ret) {
+                err = -ERESTARTSYS;
+                goto return_err_nomutex;
+        }
+
+        /* Get Rom signature */
+        pch_phub_read_serial_rom(chip, 0x80, (unsigned char *)&rom_signature);
+        rom_signature &= 0xff;
+        pch_phub_read_serial_rom(chip, 0x81, (unsigned char *)&tmp);
+        rom_signature |= (tmp & 0xff) << 8;
+        if (rom_signature == 0xAA55) {
+                pch_phub_read_serial_rom(chip, 0x82, &rom_length);
+                orom_size = rom_length * 512;
+                if (orom_size < off) {
+                        addr_offset = 0;
+                        goto return_ok;
+                }
+                if (orom_size < count) {
+                        addr_offset = 0;
+                        goto return_ok;
+                }
+
+                for (addr_offset = 0; addr_offset < count; addr_offset++) {
+                        pch_phub_read_serial_rom(chip, 0x80 + addr_offset + off,
+                                                         &buf[addr_offset]);
+                }
+        } else {
+                err = -ENODATA;
+                goto return_err;
+        }
+return_ok:
+        mutex_unlock(&pch_phub_mutex);
+        return addr_offset;
+
+return_err:
+        mutex_unlock(&pch_phub_mutex);
+return_err_nomutex:
+        return err;
+}
+
+static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj,
+                                  struct bin_attribute *attr,
+                                  char *buf, loff_t off, size_t count)
+{
+        int err;
+        unsigned int addr_offset;
+        int ret;
+        struct pch_phub_reg *chip =
+                dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+        ret = mutex_lock_interruptible(&pch_phub_mutex);
+        if (ret)
+                return -ERESTARTSYS;
+
+        if (off > PCH_PHUB_OROM_SIZE) {
+                addr_offset = 0;
+                goto return_ok;
+        }
+        if (count > PCH_PHUB_OROM_SIZE) {
+                addr_offset = 0;
+                goto return_ok;
+        }
+
+        for (addr_offset = 0; addr_offset < count; addr_offset++) {
+                if (PCH_PHUB_OROM_SIZE < off + addr_offset)
+                        goto return_ok;
+
+                ret = pch_phub_write_serial_rom(chip, 0x80 + addr_offset + off,
+                                                       buf[addr_offset]);
+                if (ret) {
+                        err = ret;
+                        goto return_err;
+                }
+        }
+
+return_ok:
+        mutex_unlock(&pch_phub_mutex);
+        return addr_offset;
+
+return_err:
+        mutex_unlock(&pch_phub_mutex);
+        return err;
+}
+
+static ssize_t show_pch_mac(struct device *dev, struct device_attribute *attr,
+                            char *buf)
+{
+        u8 mac[8];
+        struct pch_phub_reg *chip = dev_get_drvdata(dev);
+
+        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]);
+}
+
+static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr,
+                             const char *buf, size_t count)
+{
+        u8 mac[6];
+        struct pch_phub_reg *chip = dev_get_drvdata(dev);
+
+        if (count != 18)
+                return -EINVAL;
+
+        sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
+                (u32 *)&mac[0], (u32 *)&mac[1], (u32 *)&mac[2], (u32 *)&mac[3],
+                (u32 *)&mac[4], (u32 *)&mac[5]);
+
+        pch_phub_write_gbe_mac_addr(chip, mac);
+
+        return count;
+}
+
+static DEVICE_ATTR(pch_mac, S_IRUGO | S_IWUSR, show_pch_mac, store_pch_mac);
+
+static struct bin_attribute pch_bin_attr = {
+        .attr = {
+                .name = "pch_firmware",
+                .mode = S_IRUGO | S_IWUSR,
+        },
+        .size = PCH_PHUB_OROM_SIZE + 1,
+        .read = pch_phub_bin_read,
+        .write = pch_phub_bin_write,
+};
+
+static int __devinit pch_phub_probe(struct pci_dev *pdev,
+                                    const struct pci_device_id *id)
+{
+        int retval;
+
+        int ret;
+        ssize_t rom_size;
+        struct pch_phub_reg *chip;
+
+        chip = kzalloc(sizeof(struct pch_phub_reg), GFP_KERNEL);
+        if (chip == NULL)
+                return -ENOMEM;
+
+        ret = pci_enable_device(pdev);
+        if (ret) {
+                dev_err(&pdev->dev,
+                "%s : pci_enable_device FAILED(ret=%d)", __func__, ret);
+                goto err_pci_enable_dev;
+        }
+        dev_dbg(&pdev->dev, "%s : pci_enable_device returns %d\n", __func__,
+                ret);
+
+        ret = pci_request_regions(pdev, KBUILD_MODNAME);
+        if (ret) {
+                dev_err(&pdev->dev,
+                "%s : pci_request_regions FAILED(ret=%d)", __func__, ret);
+                goto err_req_regions;
+        }
+        dev_dbg(&pdev->dev, "%s : "
+                "pci_request_regions returns %d\n", __func__, ret);
+
+        chip->pch_phub_base_address = pci_iomap(pdev, 1, 0);
+
+
+        if (chip->pch_phub_base_address == 0) {
+                dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
+                ret = -ENOMEM;
+                goto err_pci_iomap;
+        }
+        dev_dbg(&pdev->dev, "%s : pci_iomap SUCCESS and value "
+                "in pch_phub_base_address variable is %p\n", __func__,
+                chip->pch_phub_base_address);
+        chip->pch_phub_extrom_base_address = pci_map_rom(pdev, &rom_size);
+
+        if (chip->pch_phub_extrom_base_address == 0) {
+                dev_err(&pdev->dev, "%s : pci_map_rom FAILED", __func__);
+                ret = -ENOMEM;
+                goto err_pci_map;
+        }
+        dev_dbg(&pdev->dev, "%s : "
+                "pci_map_rom SUCCESS and value in "
+                "pch_phub_extrom_base_address variable is %p\n", __func__,
+                chip->pch_phub_extrom_base_address);
+
+        pci_set_drvdata(pdev, chip);
+
+        retval = sysfs_create_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
+        if (retval)
+                goto err_sysfs_create;
+
+        retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+        if (retval)
+                goto exit_bin_attr;
+
+        pch_phub_read_modify_write_reg(chip, (unsigned int)CLKCFG_REG_OFFSET,
+                                        CLKCFG_CAN_50MHZ, CLKCFG_CANCLK_MASK);
+
+        /* set the prefech value */
+        iowrite32(0x000affaa, chip->pch_phub_base_address + 0x14);
+        /* set the interrupt delay value */
+        iowrite32(0x25, chip->pch_phub_base_address + 0x44);
+
+        return 0;
+exit_bin_attr:
+        sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
+
+err_sysfs_create:
+        pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address);
+err_pci_map:
+        pci_iounmap(pdev, chip->pch_phub_base_address);
+err_pci_iomap:
+        pci_release_regions(pdev);
+err_req_regions:
+        pci_disable_device(pdev);
+err_pci_enable_dev:
+        kfree(chip);
+        dev_err(&pdev->dev, "%s returns %d\n", __func__, ret);
+        return ret;
+}
+
+static void __devexit pch_phub_remove(struct pci_dev *pdev)
+{
+        struct pch_phub_reg *chip = pci_get_drvdata(pdev);
+
+        sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr);
+        sysfs_remove_bin_file(&pdev->dev.kobj, &pch_bin_attr);
+        pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address);
+        pci_iounmap(pdev, chip->pch_phub_base_address);
+        pci_release_regions(pdev);
+        pci_disable_device(pdev);
+        kfree(chip);
+}
+
+#ifdef CONFIG_PM
+
+static int pch_phub_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+        int ret;
+
+        pch_phub_save_reg_conf(pdev);
+        ret = pci_save_state(pdev);
+        if (ret) {
+                dev_err(&pdev->dev,
+                        " %s -pci_save_state returns %d\n", __func__, ret);
+                return ret;
+        }
+        pci_enable_wake(pdev, PCI_D3hot, 0);
+        pci_disable_device(pdev);
+        pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+        return 0;
+}
+
+static int pch_phub_resume(struct pci_dev *pdev)
+{
+        int ret;
+
+        pci_set_power_state(pdev, PCI_D0);
+        pci_restore_state(pdev);
+        ret = pci_enable_device(pdev);
+        if (ret) {
+                dev_err(&pdev->dev,
+                "%s-pci_enable_device failed(ret=%d) ", __func__, ret);
+                return ret;
+        }
+
+        pci_enable_wake(pdev, PCI_D3hot, 0);
+        pch_phub_restore_reg_conf(pdev);
+
+        return 0;
+}
+#else
+#define pch_phub_suspend NULL
+#define pch_phub_resume NULL
+#endif /* CONFIG_PM */
+
+static struct pci_device_id pch_phub_pcidev_id[] = {
+        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PCH1_PHUB)},
+        {0,}
+};
+
+static struct pci_driver pch_phub_driver = {
+        .name = "pch_phub",
+        .id_table = pch_phub_pcidev_id,
+        .probe = pch_phub_probe,
+        .remove = __devexit_p(pch_phub_remove),
+        .suspend = pch_phub_suspend,
+        .resume = pch_phub_resume
+};
+
+static int __init pch_phub_pci_init(void)
+{
+        return pci_register_driver(&pch_phub_driver);
+}
+
+static void __exit pch_phub_pci_exit(void)
+{
+        pci_unregister_driver(&pch_phub_driver);
+}
+
+module_init(pch_phub_pci_init);
+module_exit(pch_phub_pci_exit);
+
+MODULE_DESCRIPTION("PCH Packet Hub PCI Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 10478153641b..4f7a5829ea4c 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -412,9 +412,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 
         device_initialize(&shost->shost_gendev);
         dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);
-#ifndef CONFIG_SYSFS_DEPRECATED
         shost->shost_gendev.bus = &scsi_bus_type;
-#endif
         shost->shost_gendev.type = &scsi_host_type;
 
         device_initialize(&shost->shost_dev);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 3d0a1e6e9c48..087821fac8fe 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -417,9 +417,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
         starget->reap_ref = 1;
         dev->parent = get_device(parent);
         dev_set_name(dev, "target%d:%d:%d", shost->host_no, channel, id);
-#ifndef CONFIG_SYSFS_DEPRECATED
         dev->bus = &scsi_bus_type;
-#endif
         dev->type = &scsi_target_type;
         starget->id = id;
         starget->channel = channel;
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 4d3a6fd1a152..a858d2b87b94 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -23,9 +23,10 @@
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/kobject.h>
+#include <linux/cdev.h>
 #include <linux/uio_driver.h>
 
-#define UIO_MAX_DEVICES 255
+#define UIO_MAX_DEVICES         (1U << MINORBITS)
 
 struct uio_device {
         struct module           *owner;
@@ -41,15 +42,10 @@ struct uio_device {
 };
 
 static int uio_major;
+static struct cdev *uio_cdev;
 static DEFINE_IDR(uio_idr);
 static const struct file_operations uio_fops;
 
-/* UIO class infrastructure */
-static struct uio_class {
-        struct kref kref;
-        struct class *class;
-} *uio_class;
-
 /* Protect idr accesses */
 static DEFINE_MUTEX(minor_lock);
 
@@ -232,45 +228,34 @@ static ssize_t show_name(struct device *dev,
                          struct device_attribute *attr, char *buf)
 {
         struct uio_device *idev = dev_get_drvdata(dev);
-        if (idev)
-                return sprintf(buf, "%s\n", idev->info->name);
-        else
-                return -ENODEV;
+        return sprintf(buf, "%s\n", idev->info->name);
 }
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 
 static ssize_t show_version(struct device *dev,
                             struct device_attribute *attr, char *buf)
 {
         struct uio_device *idev = dev_get_drvdata(dev);
-        if (idev)
-                return sprintf(buf, "%s\n", idev->info->version);
-        else
-                return -ENODEV;
+        return sprintf(buf, "%s\n", idev->info->version);
 }
-static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
 
 static ssize_t show_event(struct device *dev,
                           struct device_attribute *attr, char *buf)
 {
         struct uio_device *idev = dev_get_drvdata(dev);
-        if (idev)
-                return sprintf(buf, "%u\n",
-                                (unsigned int)atomic_read(&idev->event));
-        else
-                return -ENODEV;
+        return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
 }
-static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
 
-static struct attribute *uio_attrs[] = {
-        &dev_attr_name.attr,
-        &dev_attr_version.attr,
-        &dev_attr_event.attr,
-        NULL,
+static struct device_attribute uio_class_attributes[] = {
+        __ATTR(name, S_IRUGO, show_name, NULL),
+        __ATTR(version, S_IRUGO, show_version, NULL),
+        __ATTR(event, S_IRUGO, show_event, NULL),
+        {}
 };
 
-static struct attribute_group uio_attr_grp = {
-        .attrs = uio_attrs,
+/* UIO class infrastructure */
+static struct class uio_class = {
+        .name = "uio",
+        .dev_attrs = uio_class_attributes,
 };
 
 /*
@@ -287,10 +272,6 @@ static int uio_dev_add_attributes(struct uio_device *idev)
         struct uio_port *port;
         struct uio_portio *portio;
 
-        ret = sysfs_create_group(&idev->dev->kobj, &uio_attr_grp);
-        if (ret)
-                goto err_group;
-
         for (mi = 0; mi < MAX_UIO_MAPS; mi++) {
                 mem = &idev->info->mem[mi];
                 if (mem->size == 0)
@@ -358,8 +339,6 @@ err_map:
                 kobject_put(&map->kobj);
         }
         kobject_put(idev->map_dir);
-        sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp);
-err_group:
         dev_err(idev->dev, "error creating sysfs files (%d)\n", ret);
         return ret;
 }
@@ -385,8 +364,6 @@ static void uio_dev_del_attributes(struct uio_device *idev)
                 kobject_put(&port->portio->kobj);
         }
         kobject_put(idev->portio_dir);
-
-        sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp);
 }
 
 static int uio_get_minor(struct uio_device *idev)
@@ -525,7 +502,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
         struct uio_listener *listener = filep->private_data;
         struct uio_device *idev = listener->dev;
 
-        if (idev->info->irq == UIO_IRQ_NONE)
+        if (!idev->info->irq)
                 return -EIO;
 
         poll_wait(filep, &idev->wait, wait);
@@ -543,7 +520,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
         ssize_t retval;
         s32 event_count;
 
-        if (idev->info->irq == UIO_IRQ_NONE)
+        if (!idev->info->irq)
                 return -EIO;
 
         if (count != sizeof(s32))
@@ -591,7 +568,7 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
         ssize_t retval;
         s32 irq_on;
 
-        if (idev->info->irq == UIO_IRQ_NONE)
+        if (!idev->info->irq)
                 return -EIO;
 
         if (count != sizeof(s32))
@@ -745,68 +722,72 @@ static const struct file_operations uio_fops = {
 
 static int uio_major_init(void)
 {
-        uio_major = register_chrdev(0, "uio", &uio_fops);
-        if (uio_major < 0)
-                return uio_major;
-        return 0;
+        static const char name[] = "uio";
+        struct cdev *cdev = NULL;
+        dev_t uio_dev = 0;
+        int result;
+
+        result = alloc_chrdev_region(&uio_dev, 0, UIO_MAX_DEVICES, name);
+        if (result)
+                goto out;
+
+        result = -ENOMEM;
+        cdev = cdev_alloc();
+        if (!cdev)
+                goto out_unregister;
+
+        cdev->owner = THIS_MODULE;
+        cdev->ops = &uio_fops;
+        kobject_set_name(&cdev->kobj, "%s", name);
+
+        result = cdev_add(cdev, uio_dev, UIO_MAX_DEVICES);
+        if (result)
+                goto out_put;
+
+        uio_major = MAJOR(uio_dev);
+        uio_cdev = cdev;
+        result = 0;
+out:
+        return result;
+out_put:
+        kobject_put(&cdev->kobj);
+out_unregister:
+        unregister_chrdev_region(uio_dev, UIO_MAX_DEVICES);
+        goto out;
 }
 
 static void uio_major_cleanup(void)
 {
-        unregister_chrdev(uio_major, "uio");
+        unregister_chrdev_region(MKDEV(uio_major, 0), UIO_MAX_DEVICES);
+        cdev_del(uio_cdev);
 }
 
 static int init_uio_class(void)
 {
-        int ret = 0;
-
-        if (uio_class != NULL) {
-                kref_get(&uio_class->kref);
-                goto exit;
-        }
+        int ret;
 
         /* This is the first time in here, set everything up properly */
         ret = uio_major_init();
         if (ret)
                 goto exit;
 
-        uio_class = kzalloc(sizeof(*uio_class), GFP_KERNEL);
-        if (!uio_class) {
-                ret = -ENOMEM;
-                goto err_kzalloc;
-        }
-
-        kref_init(&uio_class->kref);
-        uio_class->class = class_create(THIS_MODULE, "uio");
-        if (IS_ERR(uio_class->class)) {
-                ret = IS_ERR(uio_class->class);
-                printk(KERN_ERR "class_create failed for uio\n");
-                goto err_class_create;
+        ret = class_register(&uio_class);
+        if (ret) {
+                printk(KERN_ERR "class_register failed for uio\n");
+                goto err_class_register;
         }
         return 0;
 
-err_class_create:
-        kfree(uio_class);
-        uio_class = NULL;
-err_kzalloc:
+err_class_register:
         uio_major_cleanup();
 exit:
         return ret;
 }
 
-static void release_uio_class(struct kref *kref)
+static void release_uio_class(void)
 {
-        /* Ok, we cheat as we know we only have one uio_class */
-        class_destroy(uio_class->class);
-        kfree(uio_class);
+        class_unregister(&uio_class);
         uio_major_cleanup();
-        uio_class = NULL;
-}
-
-static void uio_class_destroy(void)
-{
-        if (uio_class)
-                kref_put(&uio_class->kref, release_uio_class);
 }
 
 /**
@@ -829,10 +810,6 @@ int __uio_register_device(struct module *owner,
 
         info->uio_dev = NULL;
 
-        ret = init_uio_class();
-        if (ret)
-                return ret;
-
         idev = kzalloc(sizeof(*idev), GFP_KERNEL);
         if (!idev) {
                 ret = -ENOMEM;
@@ -848,7 +825,7 @@ int __uio_register_device(struct module *owner,
         if (ret)
                 goto err_get_minor;
 
-        idev->dev = device_create(uio_class->class, parent,
+        idev->dev = device_create(&uio_class, parent,
                                   MKDEV(uio_major, idev->minor), idev,
                                   "uio%d", idev->minor);
         if (IS_ERR(idev->dev)) {
@@ -863,9 +840,9 @@ int __uio_register_device(struct module *owner,
 
         info->uio_dev = idev;
 
-        if (idev->info->irq >= 0) {
-                ret = request_irq(idev->info->irq, uio_interrupt,
-                                  idev->info->irq_flags, idev->info->name, idev);
+        if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
+                ret = request_irq(info->irq, uio_interrupt,
+                                  info->irq_flags, info->name, idev);
                 if (ret)
                         goto err_request_irq;
         }
@@ -875,13 +852,12 @@ int __uio_register_device(struct module *owner,
 err_request_irq:
         uio_dev_del_attributes(idev);
 err_uio_dev_add_attributes:
-        device_destroy(uio_class->class, MKDEV(uio_major, idev->minor));
+        device_destroy(&uio_class, MKDEV(uio_major, idev->minor));
 err_device_create:
         uio_free_minor(idev);
 err_get_minor:
         kfree(idev);
 err_kzalloc:
-        uio_class_destroy();
         return ret;
 }
 EXPORT_SYMBOL_GPL(__uio_register_device);
@@ -902,15 +878,13 @@ void uio_unregister_device(struct uio_info *info)
 
         uio_free_minor(idev);
 
-        if (info->irq >= 0)
+        if (info->irq && (info->irq != UIO_IRQ_CUSTOM))
                 free_irq(info->irq, idev);
 
         uio_dev_del_attributes(idev);
 
-        dev_set_drvdata(idev->dev, NULL);
-        device_destroy(uio_class->class, MKDEV(uio_major, idev->minor));
+        device_destroy(&uio_class, MKDEV(uio_major, idev->minor));
         kfree(idev);
-        uio_class_destroy();
 
         return;
 }
@@ -918,11 +892,12 @@ EXPORT_SYMBOL_GPL(uio_unregister_device);
 
 static int __init uio_init(void)
 {
-        return 0;
+        return init_uio_class();
 }
 
 static void __exit uio_exit(void)
 {
+        release_uio_class();
 }
 
 module_init(uio_init)
diff --git a/drivers/uio/uio_pci_generic.c b/drivers/uio/uio_pci_generic.c
index 85c9884a67fd..fc22e1e6f215 100644
--- a/drivers/uio/uio_pci_generic.c
+++ b/drivers/uio/uio_pci_generic.c
@@ -128,12 +128,6 @@ static int __devinit probe(struct pci_dev *pdev,
         struct uio_pci_generic_dev *gdev;
         int err;
 
-        if (!pdev->irq) {
-                dev_warn(&pdev->dev, "No IRQ assigned to device: "
-                         "no support for interrupts?\n");
-                return -ENODEV;
-        }
-
         err = pci_enable_device(pdev);
         if (err) {
                 dev_err(&pdev->dev, "%s: pci_enable_device failed: %d\n",
@@ -141,6 +135,13 @@ static int __devinit probe(struct pci_dev *pdev,
                 return err;
         }
 
+        if (!pdev->irq) {
+                dev_warn(&pdev->dev, "No IRQ assigned to device: "
+                         "no support for interrupts?\n");
+                pci_disable_device(pdev);
+                return -ENODEV;
+        }
+
         err = verify_pci_2_3(pdev);
         if (err)
                 goto err_verify;
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 30f46c2cb9d5..b81bfc016a05 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -537,14 +537,14 @@ void register_disk(struct gendisk *disk)
 
         if (device_add(ddev))
                 return;
-#ifndef CONFIG_SYSFS_DEPRECATED
-        err = sysfs_create_link(block_depr, &ddev->kobj,
-                                kobject_name(&ddev->kobj));
-        if (err) {
-                device_del(ddev);
-                return;
+        if (!sysfs_deprecated) {
+                err = sysfs_create_link(block_depr, &ddev->kobj,
+                                        kobject_name(&ddev->kobj));
+                if (err) {
+                        device_del(ddev);
+                        return;
+                }
         }
-#endif
         disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
         disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
 
@@ -766,8 +766,7 @@ void del_gendisk(struct gendisk *disk)
         kobject_put(disk->part0.holder_dir);
         kobject_put(disk->slave_dir);
         disk->driverfs_dev = NULL;
-#ifndef CONFIG_SYSFS_DEPRECATED
-        sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
-#endif
+        if (!sysfs_deprecated)
+                sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
         device_del(disk_to_dev(disk));
 }
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 4e321f7353fa..a4759833d62d 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -179,30 +179,14 @@ static void bin_vma_open(struct vm_area_struct *vma)
         struct bin_buffer *bb = file->private_data;
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 
-        if (!bb->vm_ops || !bb->vm_ops->open)
-                return;
-
-        if (!sysfs_get_active(attr_sd))
-                return;
-
-        bb->vm_ops->open(vma);
-
-        sysfs_put_active(attr_sd);
-}
-
-static void bin_vma_close(struct vm_area_struct *vma)
-{
-        struct file *file = vma->vm_file;
-        struct bin_buffer *bb = file->private_data;
-        struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-
-        if (!bb->vm_ops || !bb->vm_ops->close)
+        if (!bb->vm_ops)
                 return;
 
         if (!sysfs_get_active(attr_sd))
                 return;
 
-        bb->vm_ops->close(vma);
+        if (bb->vm_ops->open)
+                bb->vm_ops->open(vma);
 
         sysfs_put_active(attr_sd);
 }
@@ -214,13 +198,15 @@ static int bin_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
         int ret;
 
-        if (!bb->vm_ops || !bb->vm_ops->fault)
+        if (!bb->vm_ops)
                 return VM_FAULT_SIGBUS;
 
         if (!sysfs_get_active(attr_sd))
                 return VM_FAULT_SIGBUS;
 
-        ret = bb->vm_ops->fault(vma, vmf);
+        ret = VM_FAULT_SIGBUS;
+        if (bb->vm_ops->fault)
+                ret = bb->vm_ops->fault(vma, vmf);
 
         sysfs_put_active(attr_sd);
         return ret;
@@ -236,13 +222,12 @@ static int bin_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
         if (!bb->vm_ops)
                 return VM_FAULT_SIGBUS;
 
-        if (!bb->vm_ops->page_mkwrite)
-                return 0;
-
         if (!sysfs_get_active(attr_sd))
                 return VM_FAULT_SIGBUS;
 
-        ret = bb->vm_ops->page_mkwrite(vma, vmf);
+        ret = 0;
+        if (bb->vm_ops->page_mkwrite)
+                ret = bb->vm_ops->page_mkwrite(vma, vmf);
 
         sysfs_put_active(attr_sd);
         return ret;
@@ -256,13 +241,15 @@ static int bin_access(struct vm_area_struct *vma, unsigned long addr,
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
         int ret;
 
-        if (!bb->vm_ops || !bb->vm_ops->access)
+        if (!bb->vm_ops)
                 return -EINVAL;
 
         if (!sysfs_get_active(attr_sd))
                 return -EINVAL;
 
-        ret = bb->vm_ops->access(vma, addr, buf, len, write);
+        ret = -EINVAL;
+        if (bb->vm_ops->access)
+                ret = bb->vm_ops->access(vma, addr, buf, len, write);
 
         sysfs_put_active(attr_sd);
         return ret;
@@ -276,13 +263,15 @@ static int bin_set_policy(struct vm_area_struct *vma, struct mempolicy *new)
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
         int ret;
 
-        if (!bb->vm_ops || !bb->vm_ops->set_policy)
+        if (!bb->vm_ops)
                 return 0;
 
         if (!sysfs_get_active(attr_sd))
                 return -EINVAL;
 
-        ret = bb->vm_ops->set_policy(vma, new);
+        ret = 0;
+        if (bb->vm_ops->set_policy)
+                ret = bb->vm_ops->set_policy(vma, new);
 
         sysfs_put_active(attr_sd);
         return ret;
@@ -296,13 +285,15 @@ static struct mempolicy *bin_get_policy(struct vm_area_struct *vma,
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
         struct mempolicy *pol;
 
-        if (!bb->vm_ops || !bb->vm_ops->get_policy)
+        if (!bb->vm_ops)
                 return vma->vm_policy;
 
         if (!sysfs_get_active(attr_sd))
                 return vma->vm_policy;
 
-        pol = bb->vm_ops->get_policy(vma, addr);
+        pol = vma->vm_policy;
+        if (bb->vm_ops->get_policy)
+                pol = bb->vm_ops->get_policy(vma, addr);
 
         sysfs_put_active(attr_sd);
         return pol;
@@ -316,13 +307,15 @@ static int bin_migrate(struct vm_area_struct *vma, const nodemask_t *from,
         struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
         int ret;
 
-        if (!bb->vm_ops || !bb->vm_ops->migrate)
+        if (!bb->vm_ops)
                 return 0;
 
         if (!sysfs_get_active(attr_sd))
                 return 0;
 
-        ret = bb->vm_ops->migrate(vma, from, to, flags);
+        ret = 0;
+        if (bb->vm_ops->migrate)
+                ret = bb->vm_ops->migrate(vma, from, to, flags);
 
         sysfs_put_active(attr_sd);
         return ret;
@@ -331,7 +324,6 @@ static int bin_migrate(struct vm_area_struct *vma, const nodemask_t *from,
 
 static const struct vm_operations_struct bin_vm_ops = {
         .open           = bin_vma_open,
-        .close          = bin_vma_close,
         .fault          = bin_fault,
         .page_mkwrite   = bin_page_mkwrite,
         .access         = bin_access,
@@ -377,6 +369,14 @@ static int mmap(struct file *file, struct vm_area_struct *vma)
         if (bb->mmapped && bb->vm_ops != vma->vm_ops)
                 goto out_put;
 
+        /*
+         * It is not possible to successfully wrap close.
+         * So error if someone is trying to use close.
+         */
+        rc = -EINVAL;
+        if (vma->vm_ops && vma->vm_ops->close)
+                goto out_put;
+
         rc = 0;
         bb->mmapped = 1;
         bb->vm_ops = vma->vm_ops;
diff --git a/include/linux/device.h b/include/linux/device.h
index 516fecacf27b..dd4895313468 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -751,4 +751,11 @@ do {						     \
         MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
 #define MODULE_ALIAS_CHARDEV_MAJOR(major) \
         MODULE_ALIAS("char-major-" __stringify(major) "-*")
+
+#ifdef CONFIG_SYSFS_DEPRECATED
+extern long sysfs_deprecated;
+#else
+#define sysfs_deprecated 0
+#endif
+
 #endif /* _DEVICE_H_ */
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 7950a37a7146..8f6d12151048 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -191,6 +191,8 @@ static inline struct kobj_type *get_ktype(struct kobject *kobj)
 }
 
 extern struct kobject *kset_find_obj(struct kset *, const char *);
+extern struct kobject *kset_find_obj_hinted(struct kset *, const char *,
+                                                struct kobject *);
 
 /* The global /sys/kernel/ kobject for people to chain off of */
 extern struct kobject *kernel_kobj;
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 85582e1bcee9..06c1fa0a5c7b 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -23,6 +23,8 @@
 struct memory_block {
         unsigned long phys_index;
         unsigned long state;
+        int section_count;
+
         /*
          * This serializes all state change requests.  It isn't
          * held during creation because the control files are
@@ -113,6 +115,8 @@ extern int memory_dev_init(void);
 extern int remove_memory_block(unsigned long, struct mem_section *, int);
 extern int memory_notify(unsigned long val, void *v);
 extern int memory_isolate_notify(unsigned long val, void *v);
+extern struct memory_block *find_memory_block_hinted(struct mem_section *,
+                                                        struct memory_block *);
 extern struct memory_block *find_memory_block(struct mem_section *);
 #define CONFIG_MEM_BLOCK_SIZE   (PAGES_PER_SECTION<<PAGE_SHIFT)
 enum mem_add_context { BOOT, HOTPLUG };
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index d7ecad0093bb..2e700ec0601f 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -138,6 +138,9 @@ extern struct platform_device *platform_create_bundle(struct platform_driver *dr
                                         struct resource *res, unsigned int n_res,
                                         const void *data, size_t size);
 
+extern const struct dev_pm_ops * platform_bus_get_pm_ops(void);
+extern void platform_bus_set_pm_ops(const struct dev_pm_ops *pm);
+
 /* early platform driver interface */
 struct early_platform_driver {
         const char *class_str;
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 5dcc9ff72f69..d6188e5a52df 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -108,7 +108,7 @@ extern void uio_event_notify(struct uio_info *info);
 
 /* defines for uio_info->irq */
 #define UIO_IRQ_CUSTOM  -1
-#define UIO_IRQ_NONE    -2
+#define UIO_IRQ_NONE    0
 
 /* defines for uio_mem->memtype */
 #define UIO_MEM_NONE    0
diff --git a/include/sound/core.h b/include/sound/core.h
index 89e0ac17f44a..df26ebbfa9c6 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -133,9 +133,7 @@ struct snd_card {
         int free_on_last_close;         /* free in context of file_release */
         wait_queue_head_t shutdown_sleep;
         struct device *dev;             /* device assigned to this card */
-#ifndef CONFIG_SYSFS_DEPRECATED
         struct device *card_dev;        /* cardX object for sysfs */
-#endif
 
 #ifdef CONFIG_PM
         unsigned int power_state;       /* power state */
@@ -196,11 +194,7 @@ struct snd_minor {
 /* return a device pointer linked to each sound device as a parent */
 static inline struct device *snd_card_get_device_link(struct snd_card *card)
 {
-#ifdef CONFIG_SYSFS_DEPRECATED
-        return card ? card->dev : NULL;
-#else
         return card ? card->card_dev : NULL;
-#endif
 }
 
 /* sound.c */
diff --git a/init/Kconfig b/init/Kconfig
index bd125a795374..fdfd97efe0e0 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -686,40 +686,42 @@ config MM_OWNER
         bool
 
 config SYSFS_DEPRECATED
-        bool
-
-config SYSFS_DEPRECATED_V2
         bool "enable deprecated sysfs features to support old userspace tools"
         depends on SYSFS
         default n
-        select SYSFS_DEPRECATED
-        help
-          This option switches the layout of sysfs to the deprecated
-          version. Do not use it on recent distributions.
-
-          The current sysfs layout features a unified device tree at
-          /sys/devices/, which is able to express a hierarchy between
-          class devices. If the deprecated option is set to Y, the
-          unified device tree is split into a bus device tree at
-          /sys/devices/ and several individual class device trees at
-          /sys/class/. The class and bus devices will be connected by
-          "<subsystem>:<name>" and the "device" links. The "block"
-          class devices, will not show up in /sys/class/block/. Some
-          subsystems will suppress the creation of some devices which
-          depend on the unified device tree.
-
-          This option is not a pure compatibility option that can
-          be safely enabled on newer distributions. It will change the
-          layout of sysfs to the non-extensible deprecated version,
-          and disable some features, which can not be exported without
-          confusing older userspace tools. Since 2007/2008 all major
-          distributions do not enable this option, and ship no tools which
-          depend on the deprecated layout or this option.
-
-          If you are using a new kernel on an older distribution, or use
-          older userspace tools, you might need to say Y here. Do not say Y,
-          if the original kernel, that came with your distribution, has
-          this option set to N.
+        help
+          This option adds code that switches the layout of the "block" class
+          devices, to not show up in /sys/class/block/, but only in
+          /sys/block/.
+
+          This switch is only active when the sysfs.deprecated=1 boot option is
+          passed or the SYSFS_DEPRECATED_V2 option is set.
+
+          This option allows new kernels to run on old distributions and tools,
+          which might get confused by /sys/class/block/. Since 2007/2008 all
+          major distributions and tools handle this just fine.
+
+          Recent distributions and userspace tools after 2009/2010 depend on
+          the existence of /sys/class/block/, and will not work with this
+          option enabled.
+
+          Only if you are using a new kernel on an old distribution, you might
+          need to say Y here.
+
+config SYSFS_DEPRECATED_V2
+        bool "enabled deprecated sysfs features by default"
+        default n
+        depends on SYSFS
+        depends on SYSFS_DEPRECATED
+        help
+          Enable deprecated sysfs by default.
+
+          See the CONFIG_SYSFS_DEPRECATED option for more details about this
+          option.
+
+          Only if you are using a new kernel on an old distribution, you might
+          need to say Y here. Even then, odds are you would not need it
+          enabled, you can always pass the boot option if absolutely necessary.
 
 config RELAY
         bool "Kernel->user space relay support (formerly relayfs)"
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 7bd6df781ce5..3094318bfea7 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -393,6 +393,40 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
         return 0;
 }
 
+static int ddebug_exec_query(char *query_string)
+{
+        unsigned int flags = 0, mask = 0;
+        struct ddebug_query query;
+#define MAXWORDS 9
+        int nwords;
+        char *words[MAXWORDS];
+
+        nwords = ddebug_tokenize(query_string, words, MAXWORDS);
+        if (nwords <= 0)
+                return -EINVAL;
+        if (ddebug_parse_query(words, nwords-1, &query))
+                return -EINVAL;
+        if (ddebug_parse_flags(words[nwords-1], &flags, &mask))
+                return -EINVAL;
+
+        /* actually go and implement the change */
+        ddebug_change(&query, flags, mask);
+        return 0;
+}
+
+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");
+                return 0;
+        }
+        strcpy(ddebug_setup_string, str);
+        return 1;
+}
+
+__setup("ddebug_query=", ddebug_setup_query);
+
 /*
  * File_ops->write method for <debugfs>/dynamic_debug/conrol.  Gathers the
  * command text from userspace, parses and executes it.
@@ -400,12 +434,8 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
                                   size_t len, loff_t *offp)
 {
-        unsigned int flags = 0, mask = 0;
-        struct ddebug_query query;
-#define MAXWORDS 9
-        int nwords;
-        char *words[MAXWORDS];
         char tmpbuf[256];
+        int ret;
 
         if (len == 0)
                 return 0;
@@ -419,16 +449,9 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
                 printk(KERN_INFO "%s: read %d bytes from userspace\n",
                         __func__, (int)len);
 
-        nwords = ddebug_tokenize(tmpbuf, words, MAXWORDS);
-        if (nwords <= 0)
-                return -EINVAL;
-        if (ddebug_parse_query(words, nwords-1, &query))
-                return -EINVAL;
-        if (ddebug_parse_flags(words[nwords-1], &flags, &mask))
-                return -EINVAL;
-
-        /* actually go and implement the change */
-        ddebug_change(&query, flags, mask);
+        ret = ddebug_exec_query(tmpbuf);
+        if (ret)
+                return ret;
 
         *offp += len;
         return len;
@@ -689,13 +712,14 @@ static void ddebug_remove_all_tables(void)
         mutex_unlock(&ddebug_lock);
 }
 
-static int __init dynamic_debug_init(void)
+static __initdata int ddebug_init_success;
+
+static int __init dynamic_debug_init_debugfs(void)
 {
         struct dentry *dir, *file;
-        struct _ddebug *iter, *iter_start;
-        const char *modname = NULL;
-        int ret = 0;
-        int n = 0;
+
+        if (!ddebug_init_success)
+                return -ENODEV;
 
         dir = debugfs_create_dir("dynamic_debug", NULL);
         if (!dir)
@@ -706,6 +730,16 @@ static int __init dynamic_debug_init(void)
                 debugfs_remove(dir);
                 return -ENOMEM;
         }
+        return 0;
+}
+
+static int __init dynamic_debug_init(void)
+{
+        struct _ddebug *iter, *iter_start;
+        const char *modname = NULL;
+        int ret = 0;
+        int n = 0;
+
         if (__start___verbose != __stop___verbose) {
                 iter = __start___verbose;
                 modname = iter->modname;
@@ -723,12 +757,26 @@ static int __init dynamic_debug_init(void)
                 }
                 ret = ddebug_add_module(iter_start, n, modname);
         }
+
+        /* ddebug_query boot param got passed -> set it up */
+        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);
+                else
+                        pr_info("ddebug initialized with string %s",
+                                ddebug_setup_string);
+        }
+
 out_free:
-        if (ret) {
+        if (ret)
                 ddebug_remove_all_tables();
-                debugfs_remove(dir);
-                debugfs_remove(file);
-        }
+        else
+                ddebug_init_success = 1;
         return 0;
 }
-module_init(dynamic_debug_init);
+/* Allow early initialization for boot messages via boot param */
+arch_initcall(dynamic_debug_init);
+/* Debugfs setup must be done later */
+module_init(dynamic_debug_init_debugfs);
diff --git a/lib/kobject.c b/lib/kobject.c
index f07c57252e82..82dc34c095c2 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -746,17 +746,56 @@ void kset_unregister(struct kset *k)
  */
 struct kobject *kset_find_obj(struct kset *kset, const char *name)
 {
+        return kset_find_obj_hinted(kset, name, NULL);
+}
+
+/**
+ * kset_find_obj_hinted - search for object in kset given a predecessor hint.
+ * @kset: kset we're looking in.
+ * @name: object's name.
+ * @hint: hint to possible object's predecessor.
+ *
+ * Check the hint's next object and if it is a match return it directly,
+ * otherwise, fall back to the behavior of kset_find_obj().  Either way
+ * a reference for the returned object is held and the reference on the
+ * hinted object is released.
+ */
+struct kobject *kset_find_obj_hinted(struct kset *kset, const char *name,
+                                     struct kobject *hint)
+{
         struct kobject *k;
         struct kobject *ret = NULL;
 
         spin_lock(&kset->list_lock);
+
+        if (!hint)
+                goto slow_search;
+
+        /* end of list detection */
+        if (hint->entry.next == kset->list.next)
+                goto slow_search;
+
+        k = container_of(hint->entry.next, struct kobject, entry);
+        if (!kobject_name(k) || strcmp(kobject_name(k), name))
+                goto slow_search;
+
+        ret = kobject_get(k);
+        goto unlock_exit;
+
+slow_search:
         list_for_each_entry(k, &kset->list, entry) {
                 if (kobject_name(k) && !strcmp(kobject_name(k), name)) {
                         ret = kobject_get(k);
                         break;
                 }
         }
+
+unlock_exit:
         spin_unlock(&kset->list_lock);
+
+        if (hint)
+                kobject_put(hint);
+
         return ret;
 }
 
diff --git a/sound/core/init.c b/sound/core/init.c
index ec4a50ce5656..f7c3df8b521b 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -395,12 +395,10 @@ int snd_card_disconnect(struct snd_card *card)
                 snd_printk(KERN_ERR "not all devices for card %i can be disconnected\n", card->number);
 
         snd_info_card_disconnect(card);
-#ifndef CONFIG_SYSFS_DEPRECATED
         if (card->card_dev) {
                 device_unregister(card->card_dev);
                 card->card_dev = NULL;
         }
-#endif
 #ifdef CONFIG_PM
         wake_up(&card->power_sleep);
 #endif
@@ -573,7 +571,6 @@ void snd_card_set_id(struct snd_card *card, const char *nid)
 }
 EXPORT_SYMBOL(snd_card_set_id);
 
-#ifndef CONFIG_SYSFS_DEPRECATED
 static ssize_t
 card_id_show_attr(struct device *dev,
                   struct device_attribute *attr, char *buf)
@@ -630,7 +627,6 @@ card_number_show_attr(struct device *dev,
 
 static struct device_attribute card_number_attrs =
         __ATTR(number, S_IRUGO, card_number_show_attr, NULL);
-#endif /* CONFIG_SYSFS_DEPRECATED */
 
 /**
  *  snd_card_register - register the soundcard
@@ -649,7 +645,7 @@ int snd_card_register(struct snd_card *card)
 
         if (snd_BUG_ON(!card))
                 return -EINVAL;
-#ifndef CONFIG_SYSFS_DEPRECATED
+
         if (!card->card_dev) {
                 card->card_dev = device_create(sound_class, card->dev,
                                                MKDEV(0, 0), card,
@@ -657,7 +653,7 @@ int snd_card_register(struct snd_card *card)
                 if (IS_ERR(card->card_dev))
                         card->card_dev = NULL;
         }
-#endif
+
         if ((err = snd_device_register_all(card)) < 0)
                 return err;
         mutex_lock(&snd_card_mutex);
@@ -674,7 +670,6 @@ int snd_card_register(struct snd_card *card)
         if (snd_mixer_oss_notify_callback)
                 snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);
 #endif
-#ifndef CONFIG_SYSFS_DEPRECATED
         if (card->card_dev) {
                 err = device_create_file(card->card_dev, &card_id_attrs);
                 if (err < 0)
@@ -683,7 +678,7 @@ int snd_card_register(struct snd_card *card)
                 if (err < 0)
                         return err;
         }
-#endif
+
         return 0;
 }