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

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (46 commits)
  dev_dbg: check dev_dbg() arguments
  drivers/base/attribute_container.c: use mutex instead of binary semaphore
  mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs
  s2ram: add arch irq disable/enable hooks
  define platform wakeup hook, use in pci_enable_wake()
  security: prevent permission checking of file removal via sysfs_remove_group()
  device_schedule_callback() needs a module reference
  s390: cio: Delay uevents for subchannels
  sysfs: bin.c printk fix
  Driver core: use mutex instead of semaphore in DMA pool handler
  driver core: bus_add_driver should return an error if no bus
  debugfs: Add debugfs_create_u64()
  the overdue removal of the mount/umount uevents
  kobject: Comment and warning fixes to kobject.c
  Driver core: warn when userspace writes to the uevent file in a non-supported way
  Driver core: make uevent-environment available in uevent-file
  kobject core: remove rwsem from struct subsystem
  qeth: Remove usage of subsys.rwsem
  PHY: remove rwsem use from phy core
  IEEE1394: remove rwsem use from ieee1394 core
  ...

7 files changed, 99 insertions, 35 deletions

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 9fa0983d1aa8..5a9c49534d08 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -44,6 +44,8 @@ struct dentry *debugfs_create_u16(const char *name, mode_t mode,
                                   struct dentry *parent, u16 *value);
 struct dentry *debugfs_create_u32(const char *name, mode_t mode,
                                   struct dentry *parent, u32 *value);
+struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+                                  struct dentry *parent, u64 *value);
 struct dentry *debugfs_create_bool(const char *name, mode_t mode,
                                   struct dentry *parent, u32 *value);
 
@@ -104,6 +106,13 @@ static inline struct dentry *debugfs_create_u32(const char *name, mode_t mode,
         return ERR_PTR(-ENODEV);
 }
 
+static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode,
+                                                struct dentry *parent,
+                                                u64 *value)
+{
+        return ERR_PTR(-ENODEV);
+}
+
 static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
                                                  struct dentry *parent,
                                                  u32 *value)
diff --git a/include/linux/device.h b/include/linux/device.h
index 5cf30e95c8b6..a0cd2ced31a9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -34,9 +34,24 @@ struct device;
 struct device_driver;
 struct class;
 struct class_device;
+struct bus_type;
+
+struct bus_attribute {
+        struct attribute        attr;
+        ssize_t (*show)(struct bus_type *, char * buf);
+        ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
+};
+
+#define BUS_ATTR(_name,_mode,_show,_store)      \
+struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+extern int __must_check bus_create_file(struct bus_type *,
+                                        struct bus_attribute *);
+extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
 
 struct bus_type {
         const char              * name;
+        struct module           * owner;
 
         struct subsystem        subsys;
         struct kset             drivers;
@@ -49,6 +64,8 @@ struct bus_type {
         struct bus_attribute    * bus_attrs;
         struct device_attribute * dev_attrs;
         struct driver_attribute * drv_attrs;
+        struct bus_attribute drivers_autoprobe_attr;
+        struct bus_attribute drivers_probe_attr;
 
         int             (*match)(struct device * dev, struct device_driver * drv);
         int             (*uevent)(struct device *dev, char **envp,
@@ -61,6 +78,9 @@ struct bus_type {
         int (*suspend_late)(struct device * dev, pm_message_t state);
         int (*resume_early)(struct device * dev);
         int (*resume)(struct device * dev);
+
+        unsigned int drivers_autoprobe:1;
+        unsigned int multithread_probe:1;
 };
 
 extern int __must_check bus_register(struct bus_type * bus);
@@ -102,26 +122,10 @@ extern int bus_unregister_notifier(struct bus_type *bus,
 #define BUS_NOTIFY_UNBIND_DRIVER        0x00000004 /* driver about to be
                                                       unbound */
 
-/* sysfs interface for exporting bus attributes */
-
-struct bus_attribute {
-        struct attribute        attr;
-        ssize_t (*show)(struct bus_type *, char * buf);
-        ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
-};
-
-#define BUS_ATTR(_name,_mode,_show,_store)      \
-struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store)
-
-extern int __must_check bus_create_file(struct bus_type *,
-                                        struct bus_attribute *);
-extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
-
 struct device_driver {
         const char              * name;
         struct bus_type         * bus;
 
-        struct completion       unloaded;
         struct kobject          kobj;
         struct klist            klist_devices;
         struct klist_node       knode_bus;
@@ -135,8 +139,6 @@ struct device_driver {
         void    (*shutdown)     (struct device * dev);
         int     (*suspend)      (struct device * dev, pm_message_t state);
         int     (*resume)       (struct device * dev);
-
-        unsigned int multithread_probe:1;
 };
 
 
@@ -181,10 +183,9 @@ struct class {
         struct list_head        children;
         struct list_head        devices;
         struct list_head        interfaces;
+        struct kset             class_dirs;
         struct semaphore        sem;    /* locks both the children and interfaces lists */
 
-        struct kobject          *virtual_dir;
-
         struct class_attribute          * class_attrs;
         struct class_device_attribute   * class_dev_attrs;
         struct device_attribute         * dev_attrs;
@@ -328,11 +329,23 @@ extern struct class_device *class_device_create(struct class *cls,
                                         __attribute__((format(printf,5,6)));
 extern void class_device_destroy(struct class *cls, dev_t devt);
 
+/*
+ * The type of device, "struct device" is embedded in. A class
+ * or bus can contain devices of different types
+ * like "partitions" and "disks", "mouse" and "event".
+ * This identifies the device type and carries type-specific
+ * information, equivalent to the kobj_type of a kobject.
+ * If "name" is specified, the uevent will contain it in
+ * the DEVTYPE variable.
+ */
 struct device_type {
-        struct device_attribute *attrs;
+        const char *name;
+        struct attribute_group **groups;
         int (*uevent)(struct device *dev, char **envp, int num_envp,
                       char *buffer, int buffer_size);
         void (*release)(struct device *dev);
+        int (*suspend)(struct device * dev, pm_message_t state);
+        int (*resume)(struct device * dev);
 };
 
 /* interface for exporting device attributes */
@@ -354,8 +367,12 @@ extern int __must_check device_create_bin_file(struct device *dev,
                                                struct bin_attribute *attr);
 extern void device_remove_bin_file(struct device *dev,
                                    struct bin_attribute *attr);
-extern int device_schedule_callback(struct device *dev,
-                void (*func)(struct device *));
+extern int device_schedule_callback_owner(struct device *dev,
+                void (*func)(struct device *), struct module *owner);
+
+/* This is a macro to avoid include problems with THIS_MODULE */
+#define device_schedule_callback(dev, func)                     \
+        device_schedule_callback_owner(dev, func, THIS_MODULE)
 
 /* device resource management */
 typedef void (*dr_release_t)(struct device *dev, void *res);
@@ -554,7 +571,11 @@ extern const char *dev_driver_string(struct device *dev);
 #define dev_dbg(dev, format, arg...)            \
         dev_printk(KERN_DEBUG , dev , format , ## arg)
 #else
-#define dev_dbg(dev, format, arg...) do { (void)(dev); } while (0)
+static inline int __attribute__ ((format (printf, 2, 3)))
+dev_dbg(struct device * dev, const char * fmt, ...)
+{
+        return 0;
+}
 #endif
 
 #define dev_err(dev, format, arg...)            \
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index b850e0310538..eb0e63ef297f 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -22,7 +22,6 @@
 #include <linux/sysfs.h>
 #include <linux/compiler.h>
 #include <linux/spinlock.h>
-#include <linux/rwsem.h>
 #include <linux/kref.h>
 #include <linux/kernel.h>
 #include <linux/wait.h>
@@ -43,11 +42,9 @@ enum kobject_action {
         KOBJ_ADD        = (__force kobject_action_t) 0x01,      /* exclusive to core */
         KOBJ_REMOVE     = (__force kobject_action_t) 0x02,      /* exclusive to core */
         KOBJ_CHANGE     = (__force kobject_action_t) 0x03,      /* device state change */
-        KOBJ_MOUNT      = (__force kobject_action_t) 0x04,      /* mount event for block devices (broken) */
-        KOBJ_UMOUNT     = (__force kobject_action_t) 0x05,      /* umount event for block devices (broken) */
-        KOBJ_OFFLINE    = (__force kobject_action_t) 0x06,      /* device offline */
-        KOBJ_ONLINE     = (__force kobject_action_t) 0x07,      /* device online */
-        KOBJ_MOVE       = (__force kobject_action_t) 0x08,      /* device move */
+        KOBJ_OFFLINE    = (__force kobject_action_t) 0x04,      /* device offline */
+        KOBJ_ONLINE     = (__force kobject_action_t) 0x05,      /* device online */
+        KOBJ_MOVE       = (__force kobject_action_t) 0x06,      /* device move */
 };
 
 struct kobject {
@@ -89,6 +86,8 @@ extern void kobject_unregister(struct kobject *);
 extern struct kobject * kobject_get(struct kobject *);
 extern void kobject_put(struct kobject *);
 
+extern struct kobject *kobject_kset_add_dir(struct kset *kset,
+                                            struct kobject *, const char *);
 extern struct kobject *kobject_add_dir(struct kobject *, const char *);
 
 extern char * kobject_get_path(struct kobject *, gfp_t);
@@ -175,7 +174,6 @@ extern struct kobject * kset_find_obj(struct kset *, const char *);
 
 struct subsystem {
         struct kset             kset;
-        struct rw_semaphore     rwsem;
 };
 
 #define decl_subsys(_name,_type,_uevent_ops) \
diff --git a/include/linux/namei.h b/include/linux/namei.h
index d39a5a67e979..b7dd24917f0d 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -82,6 +82,7 @@ extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
 extern void release_open_intent(struct nameidata *);
 
 extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
+extern struct dentry *lookup_one_len_kern(const char *, struct dentry *, int);
 
 extern int follow_down(struct vfsmount **, struct dentry **);
 extern int follow_up(struct vfsmount **, struct dentry **);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 481ea0663f19..a3ad76221c6f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -361,8 +361,6 @@ struct pci_driver {
         struct pci_error_handlers *err_handler;
         struct device_driver    driver;
         struct pci_dynids dynids;
-
-        int multithread_probe;
 };
 
 #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 21db05ac7c0b..9bd86db4d395 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -166,6 +166,24 @@ extern struct pm_ops *pm_ops;
 extern int pm_suspend(suspend_state_t state);
 
 
+/**
+ * arch_suspend_disable_irqs - disable IRQs for suspend
+ *
+ * Disables IRQs (in the default case). This is a weak symbol in the common
+ * code and thus allows architectures to override it if more needs to be
+ * done. Not called for suspend to disk.
+ */
+extern void arch_suspend_disable_irqs(void);
+
+/**
+ * arch_suspend_enable_irqs - enable IRQs after suspend
+ *
+ * Enables IRQs (in the default case). This is a weak symbol in the common
+ * code and thus allows architectures to override it if more needs to be
+ * done. Not called for suspend to disk.
+ */
+extern void arch_suspend_enable_irqs(void);
+
 /*
  * Device power management
  */
@@ -273,6 +291,20 @@ extern void __suspend_report_result(const char *function, void *fn, int ret);
                 __suspend_report_result(__FUNCTION__, fn, ret);         \
         } while (0)
 
+/*
+ * Platform hook to activate device wakeup capability, if that's not already
+ * handled by enable_irq_wake() etc.
+ * Returns zero on success, else negative errno
+ */
+extern int (*platform_enable_wakeup)(struct device *dev, int is_on);
+
+static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
+{
+        if (platform_enable_wakeup)
+                return (*platform_enable_wakeup)(dev, is_on);
+        return 0;
+}
+
 #else /* !CONFIG_PM */
 
 static inline int device_suspend(pm_message_t state)
@@ -294,6 +326,11 @@ static inline void dpm_runtime_resume(struct device * dev)
 
 #define suspend_report_result(fn, ret) do { } while (0)
 
+static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
+{
+        return -EIO;
+}
+
 #endif
 
 /* changes to device_may_wakeup take effect on the next pm state change.
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index fea9a6b3fb7b..7d5d1ec95c2e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -80,7 +80,7 @@ struct sysfs_ops {
 #ifdef CONFIG_SYSFS
 
 extern int sysfs_schedule_callback(struct kobject *kobj,
-                void (*func)(void *), void *data);
+                void (*func)(void *), void *data, struct module *owner);
 
 extern int __must_check
 sysfs_create_dir(struct kobject *, struct dentry *);
@@ -137,7 +137,7 @@ extern int __must_check sysfs_init(void);
 #else /* CONFIG_SYSFS */
 
 static inline int sysfs_schedule_callback(struct kobject *kobj,
-                void (*func)(void *), void *data)
+                void (*func)(void *), void *data, struct module *owner)
 {
         return -ENOSYS;
 }