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

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

13 files changed, 101 insertions, 37 deletions

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 32755cdf68db..e1a6c046cea3 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -44,6 +44,7 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
                                       const char *dest);
 
 void debugfs_remove(struct dentry *dentry);
+void debugfs_remove_recursive(struct dentry *dentry);
 
 struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, const char *new_name);
@@ -101,6 +102,9 @@ static inline struct dentry *debugfs_create_symlink(const char *name,
 static inline void debugfs_remove(struct dentry *dentry)
 { }
 
+static inline void debugfs_remove_recursive(struct dentry *dentry)
+{ }
+
 static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, char *new_name)
 {
diff --git a/include/linux/device.h b/include/linux/device.h
index f71a78d123ae..d24a47f80f9c 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -16,6 +16,7 @@
 #include <linux/kobject.h>
 #include <linux/klist.h>
 #include <linux/list.h>
+#include <linux/lockdep.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/module.h>
@@ -24,17 +25,13 @@
 #include <asm/atomic.h>
 #include <asm/device.h>
 
-#define DEVICE_NAME_SIZE        50
-/* DEVICE_NAME_HALF is really less than half to accommodate slop */
-#define DEVICE_NAME_HALF        __stringify(20)
-#define DEVICE_ID_SIZE          32
-#define BUS_ID_SIZE             KOBJ_NAME_LEN
-
+#define BUS_ID_SIZE             20
 
 struct device;
 struct device_driver;
 struct driver_private;
 struct class;
+struct class_private;
 struct bus_type;
 struct bus_type_private;
 
@@ -186,13 +183,9 @@ struct class {
         const char              *name;
         struct module           *owner;
 
-        struct kset             subsys;
-        struct list_head        devices;
-        struct list_head        interfaces;
-        struct kset             class_dirs;
-        struct semaphore        sem; /* locks children, devices, interfaces */
         struct class_attribute          *class_attrs;
         struct device_attribute         *dev_attrs;
+        struct kobject                  *dev_kobj;
 
         int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
 
@@ -203,13 +196,28 @@ struct class {
         int (*resume)(struct device *dev);
 
         struct pm_ops *pm;
+        struct class_private *p;
 };
 
-extern int __must_check class_register(struct class *class);
+extern struct kobject *sysfs_dev_block_kobj;
+extern struct kobject *sysfs_dev_char_kobj;
+extern int __must_check __class_register(struct class *class,
+                                         struct lock_class_key *key);
 extern void class_unregister(struct class *class);
-extern int class_for_each_device(struct class *class, void *data,
+
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_register(class)                   \
+({                                              \
+        static struct lock_class_key __key;     \
+        __class_register(class, &__key);        \
+})
+
+extern int class_for_each_device(struct class *class, struct device *start,
+                                 void *data,
                                  int (*fn)(struct device *dev, void *data));
-extern struct device *class_find_device(struct class *class, void *data,
+extern struct device *class_find_device(struct class *class,
+                                        struct device *start, void *data,
                                         int (*match)(struct device *, void *));
 
 struct class_attribute {
@@ -237,9 +245,19 @@ struct class_interface {
 extern int __must_check class_interface_register(struct class_interface *);
 extern void class_interface_unregister(struct class_interface *);
 
-extern struct class *class_create(struct module *owner, const char *name);
+extern struct class * __must_check __class_create(struct module *owner,
+                                                  const char *name,
+                                                  struct lock_class_key *key);
 extern void class_destroy(struct class *cls);
 
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_create(owner, name)               \
+({                                              \
+        static struct lock_class_key __key;     \
+        __class_create(owner, name, &__key);    \
+})
+
 /*
  * The type of device, "struct device" is embedded in. A class
  * or bus can contain devices of different types
@@ -468,14 +486,10 @@ extern struct device *device_create_vargs(struct class *cls,
                                           const char *fmt,
                                           va_list vargs);
 extern struct device *device_create(struct class *cls, struct device *parent,
-                                    dev_t devt, const char *fmt, ...)
-                                    __attribute__((format(printf, 4, 5)));
-extern struct device *device_create_drvdata(struct class *cls,
-                                            struct device *parent,
-                                            dev_t devt,
-                                            void *drvdata,
-                                            const char *fmt, ...)
+                                    dev_t devt, void *drvdata,
+                                    const char *fmt, ...)
                                     __attribute__((format(printf, 5, 6)));
+#define device_create_drvdata   device_create
 extern void device_destroy(struct class *cls, dev_t devt);
 
 /*
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index fe806b6f030d..e61c0be2a459 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -40,7 +40,7 @@ struct eisa_device {
         u64                   dma_mask;
         struct device         dev; /* generic device */
 #ifdef CONFIG_EISA_NAMES
-        char                  pretty_name[DEVICE_NAME_SIZE];
+        char                  pretty_name[50];
 #endif
 };
 
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 39e709f88aa0..60f0d418ae32 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -26,7 +26,6 @@
 #include <linux/wait.h>
 #include <asm/atomic.h>
 
-#define KOBJ_NAME_LEN                   20
 #define UEVENT_HELPER_PATH_LEN          256
 #define UEVENT_NUM_ENVP                 32      /* number of env pointers */
 #define UEVENT_BUFFER_SIZE              2048    /* buffer for the variables */
@@ -59,12 +58,12 @@ enum kobject_action {
 
 struct kobject {
         const char              *name;
-        struct kref             kref;
         struct list_head        entry;
         struct kobject          *parent;
         struct kset             *kset;
         struct kobj_type        *ktype;
         struct sysfs_dirent     *sd;
+        struct kref             kref;
         unsigned int state_initialized:1;
         unsigned int state_in_sysfs:1;
         unsigned int state_add_uevent_sent:1;
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index a9fae032ba81..9c1d95491f8b 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -189,7 +189,7 @@ typedef union {
 */
 
 struct map_info {
-        char *name;
+        const char *name;
         unsigned long size;
         resource_size_t phys;
 #define NO_XIP (-1UL)
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 245f9098e171..8b5d49133ec6 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -121,7 +121,7 @@ struct mtd_info {
         u_int32_t oobavail;  // Available OOB bytes per block
 
         // Kernel-only stuff starts here.
-        char *name;
+        const char *name;
         int index;
 
         /* ecc layout structure pointer - read only ! */
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 387e428f1cdf..b9a76c972084 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -733,7 +733,7 @@ struct spi_board_info {
          * controller_data goes to spi_device.controller_data,
          * irq is copied too
          */
-        char            modalias[KOBJ_NAME_LEN];
+        char            modalias[32];
         const void      *platform_data;
         void            *controller_data;
         int             irq;
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index f2767bc6b735..f395bb3fa2f2 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -99,8 +99,9 @@ extern void sysdev_unregister(struct sys_device *);
 
 struct sysdev_attribute { 
         struct attribute        attr;
-        ssize_t (*show)(struct sys_device *, char *);
-        ssize_t (*store)(struct sys_device *, const char *, size_t);
+        ssize_t (*show)(struct sys_device *, struct sysdev_attribute *, char *);
+        ssize_t (*store)(struct sys_device *, struct sysdev_attribute *,
+                         const char *, size_t);
 };
 
 
@@ -118,4 +119,38 @@ struct sysdev_attribute {
 extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
 extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);
 
+struct sysdev_ext_attribute {
+        struct sysdev_attribute attr;
+        void *var;
+};
+
+/*
+ * Support for simple variable sysdev attributes.
+ * The pointer to the variable is stored in a sysdev_ext_attribute
+ */
+
+/* Add more types as needed */
+
+extern ssize_t sysdev_show_ulong(struct sys_device *, struct sysdev_attribute *,
+                                char *);
+extern ssize_t sysdev_store_ulong(struct sys_device *,
+                        struct sysdev_attribute *, const char *, size_t);
+extern ssize_t sysdev_show_int(struct sys_device *, struct sysdev_attribute *,
+                                char *);
+extern ssize_t sysdev_store_int(struct sys_device *,
+                        struct sysdev_attribute *, const char *, size_t);
+
+#define _SYSDEV_ULONG_ATTR(_name, _mode, _var)                          \
+        { _SYSDEV_ATTR(_name, _mode, sysdev_show_ulong, sysdev_store_ulong), \
+          &(_var) }
+#define SYSDEV_ULONG_ATTR(_name, _mode, _var)                   \
+        struct sysdev_ext_attribute attr_##_name =              \
+                _SYSDEV_ULONG_ATTR(_name, _mode, _var);
+#define _SYSDEV_INT_ATTR(_name, _mode, _var)                            \
+        { _SYSDEV_ATTR(_name, _mode, sysdev_show_int, sysdev_store_int), \
+          &(_var) }
+#define SYSDEV_INT_ATTR(_name, _mode, _var)                     \
+        struct sysdev_ext_attribute attr_##_name =              \
+                _SYSDEV_INT_ATTR(_name, _mode, _var);
+
 #endif /* _SYSDEV_H_ */
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 7858eac40aa7..37fa24152bd8 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -101,6 +101,9 @@ void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr);
 
 int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
                                    const char *name);
+int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
+                                          struct kobject *target,
+                                          const char *name);
 void sysfs_remove_link(struct kobject *kobj, const char *name);
 
 int __must_check sysfs_create_group(struct kobject *kobj,
@@ -180,6 +183,13 @@ static inline int sysfs_create_link(struct kobject *kobj,
         return 0;
 }
 
+static inline int sysfs_create_link_nowarn(struct kobject *kobj,
+                                           struct kobject *target,
+                                           const char *name)
+{
+        return 0;
+}
+
 static inline void sysfs_remove_link(struct kobject *kobj, const char *name)
 {
 }
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 973386d439da..cdf338d94b7f 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -36,7 +36,7 @@ struct uio_mem {
         struct uio_map          *map;
 };
 
-#define MAX_UIO_MAPS    5
+#define MAX_UIO_MAPS    5
 
 struct uio_device;
 
@@ -53,6 +53,7 @@ struct uio_device;
  * @mmap:               mmap operation for this uio device
  * @open:               open operation for this uio device
  * @release:            release operation for this uio device
+ * @irqcontrol:         disable/enable irqs when 0/1 is written to /dev/uioX
  */
 struct uio_info {
         struct uio_device       *uio_dev;
@@ -66,6 +67,7 @@ struct uio_info {
         int (*mmap)(struct uio_info *info, struct vm_area_struct *vma);
         int (*open)(struct uio_info *info, struct inode *inode);
         int (*release)(struct uio_info *info, struct inode *inode);
+        int (*irqcontrol)(struct uio_info *info, s32 irq_on);
 };
 
 extern int __must_check
@@ -80,11 +82,11 @@ static inline int __must_check
 extern void uio_unregister_device(struct uio_info *info);
 extern void uio_event_notify(struct uio_info *info);
 
-/* defines for uio_device->irq */
+/* defines for uio_info->irq */
 #define UIO_IRQ_CUSTOM  -1
 #define UIO_IRQ_NONE    -2
 
-/* defines for uio_device->memtype */
+/* defines for uio_mem->memtype */
 #define UIO_MEM_NONE    0
 #define UIO_MEM_PHYS    1
 #define UIO_MEM_LOGICAL 2
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 1834fdfe82a7..a594bac4a77d 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -623,7 +623,7 @@ struct Scsi_Host {
         /*
          * Optional work queue to be utilized by the transport
          */
-        char work_q_name[KOBJ_NAME_LEN];
+        char work_q_name[20];
         struct workqueue_struct *work_q;
 
         /*
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 06f72bab9df0..878373c32ef7 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -489,9 +489,9 @@ struct fc_host_attrs {
         u16 npiv_vports_inuse;
 
         /* work queues for rport state manipulation */
-        char work_q_name[KOBJ_NAME_LEN];
+        char work_q_name[20];
         struct workqueue_struct *work_q;
-        char devloss_work_q_name[KOBJ_NAME_LEN];
+        char devloss_work_q_name[20];
         struct workqueue_struct *devloss_work_q;
 };
 
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index f5444e033cc9..8b6c91df4c7a 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -198,7 +198,7 @@ struct iscsi_cls_host {
         atomic_t nr_scans;
         struct mutex mutex;
         struct workqueue_struct *scan_workq;
-        char scan_workq_name[KOBJ_NAME_LEN];
+        char scan_workq_name[20];
 };
 
 extern void iscsi_host_for_each_session(struct Scsi_Host *shost,