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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-27 12:58:54 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-27 12:58:54 -0700
commitd868772fff6c4b881d66af8640251714e1aefa98 (patch)
treec95a68d358d5c875d25763ffe9a44fe9f2081f34 /include/linux
parenta205752d1ad2d37d6597aaae5a56fc396a770868 (diff)
parent404d5b185b4eb56d6fa2f7bd27833f8df1c38ce4 (diff)
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 ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/debugfs.h9
-rw-r--r--include/linux/device.h69
-rw-r--r--include/linux/kobject.h12
-rw-r--r--include/linux/namei.h1
-rw-r--r--include/linux/pci.h2
-rw-r--r--include/linux/pm.h37
-rw-r--r--include/linux/sysfs.h4
7 files changed, 99 insertions, 35 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 9fa0983d1aa..5a9c49534d0 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 5cf30e95c8b..a0cd2ced31a 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 b850e031053..eb0e63ef297 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 d39a5a67e97..b7dd24917f0 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 481ea0663f1..a3ad76221c6 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 21db05ac7c0..9bd86db4d39 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 fea9a6b3fb7..7d5d1ec95c2 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;
}