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-rw-r--r--include/linux/device.h40
-rw-r--r--include/linux/kobject.h14
-rw-r--r--include/linux/platform_device.h9
-rw-r--r--include/linux/sysdev.h21
-rw-r--r--include/linux/sysfs.h61
-rw-r--r--include/linux/usb.h6
6 files changed, 134 insertions, 17 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index b30527d..1821928 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -106,7 +106,7 @@ extern int bus_unregister_notifier(struct bus_type *bus,
/* All 4 notifers below get called with the target struct device *
* as an argument. Note that those functions are likely to be called
- * with the device semaphore held in the core, so be careful.
+ * with the device lock held in the core, so be careful.
*/
#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */
#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device removed */
@@ -251,8 +251,10 @@ extern struct device *class_find_device(struct class *class,
struct class_attribute {
struct attribute attr;
- ssize_t (*show)(struct class *class, char *buf);
- ssize_t (*store)(struct class *class, const char *buf, size_t count);
+ ssize_t (*show)(struct class *class, struct class_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct class *class, struct class_attribute *attr,
+ const char *buf, size_t count);
};
#define CLASS_ATTR(_name, _mode, _show, _store) \
@@ -263,6 +265,23 @@ extern int __must_check class_create_file(struct class *class,
extern void class_remove_file(struct class *class,
const struct class_attribute *attr);
+/* Simple class attribute that is just a static string */
+
+struct class_attribute_string {
+ struct class_attribute attr;
+ char *str;
+};
+
+/* Currently read-only only */
+#define _CLASS_ATTR_STRING(_name, _mode, _str) \
+ { __ATTR(_name, _mode, show_class_attr_string, NULL), _str }
+#define CLASS_ATTR_STRING(_name, _mode, _str) \
+ struct class_attribute_string class_attr_##_name = \
+ _CLASS_ATTR_STRING(_name, _mode, _str)
+
+extern ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr,
+ char *buf);
+
struct class_interface {
struct list_head node;
struct class *class;
@@ -489,6 +508,21 @@ static inline bool device_async_suspend_enabled(struct device *dev)
return !!dev->power.async_suspend;
}
+static inline void device_lock(struct device *dev)
+{
+ down(&dev->sem);
+}
+
+static inline int device_trylock(struct device *dev)
+{
+ return down_trylock(&dev->sem);
+}
+
+static inline void device_unlock(struct device *dev)
+{
+ up(&dev->sem);
+}
+
void driver_init(void);
/*
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 58ae8e0..3950d3c 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -106,7 +106,7 @@ extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
struct kobj_type {
void (*release)(struct kobject *kobj);
- struct sysfs_ops *sysfs_ops;
+ const struct sysfs_ops *sysfs_ops;
struct attribute **default_attrs;
};
@@ -118,9 +118,9 @@ struct kobj_uevent_env {
};
struct kset_uevent_ops {
- int (*filter)(struct kset *kset, struct kobject *kobj);
- const char *(*name)(struct kset *kset, struct kobject *kobj);
- int (*uevent)(struct kset *kset, struct kobject *kobj,
+ int (* const filter)(struct kset *kset, struct kobject *kobj);
+ const char *(* const name)(struct kset *kset, struct kobject *kobj);
+ int (* const uevent)(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env);
};
@@ -132,7 +132,7 @@ struct kobj_attribute {
const char *buf, size_t count);
};
-extern struct sysfs_ops kobj_sysfs_ops;
+extern const struct sysfs_ops kobj_sysfs_ops;
/**
* struct kset - a set of kobjects of a specific type, belonging to a specific subsystem.
@@ -155,14 +155,14 @@ struct kset {
struct list_head list;
spinlock_t list_lock;
struct kobject kobj;
- struct kset_uevent_ops *uevent_ops;
+ const struct kset_uevent_ops *uevent_ops;
};
extern void kset_init(struct kset *kset);
extern int __must_check kset_register(struct kset *kset);
extern void kset_unregister(struct kset *kset);
extern struct kset * __must_check kset_create_and_add(const char *name,
- struct kset_uevent_ops *u,
+ const struct kset_uevent_ops *u,
struct kobject *parent_kobj);
static inline struct kset *to_kset(struct kobject *kobj)
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 71ff887..212da17 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -21,7 +21,7 @@ struct platform_device {
u32 num_resources;
struct resource * resource;
- struct platform_device_id *id_entry;
+ const struct platform_device_id *id_entry;
/* arch specific additions */
struct pdev_archdata archdata;
@@ -62,7 +62,7 @@ struct platform_driver {
int (*suspend)(struct platform_device *, pm_message_t state);
int (*resume)(struct platform_device *);
struct device_driver driver;
- struct platform_device_id *id_table;
+ const struct platform_device_id *id_table;
};
extern int platform_driver_register(struct platform_driver *);
@@ -77,6 +77,11 @@ extern int platform_driver_probe(struct platform_driver *driver,
#define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev)
#define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data))
+extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
+ int (*probe)(struct platform_device *),
+ struct resource *res, unsigned int n_res,
+ const void *data, size_t size);
+
/* early platform driver interface */
struct early_platform_driver {
const char *class_str;
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index f395bb3..1154c29 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -27,10 +27,12 @@
struct sys_device;
+struct sysdev_class_attribute;
struct sysdev_class {
const char *name;
struct list_head drivers;
+ struct sysdev_class_attribute **attrs;
/* Default operations for these types of devices */
int (*shutdown)(struct sys_device *);
@@ -41,8 +43,10 @@ struct sysdev_class {
struct sysdev_class_attribute {
struct attribute attr;
- ssize_t (*show)(struct sysdev_class *, char *);
- ssize_t (*store)(struct sysdev_class *, const char *, size_t);
+ ssize_t (*show)(struct sysdev_class *, struct sysdev_class_attribute *,
+ char *);
+ ssize_t (*store)(struct sysdev_class *, struct sysdev_class_attribute *,
+ const char *, size_t);
};
#define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \
@@ -119,6 +123,19 @@ 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 *);
+/* Create/remove NULL terminated attribute list */
+static inline int
+sysdev_create_files(struct sys_device *d, struct sysdev_attribute **a)
+{
+ return sysfs_create_files(&d->kobj, (const struct attribute **)a);
+}
+
+static inline void
+sysdev_remove_files(struct sys_device *d, struct sysdev_attribute **a)
+{
+ return sysfs_remove_files(&d->kobj, (const struct attribute **)a);
+}
+
struct sysdev_ext_attribute {
struct sysdev_attribute attr;
void *var;
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index cfa8308..f0496b3 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -15,6 +15,7 @@
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/list.h>
+#include <linux/lockdep.h>
#include <asm/atomic.h>
struct kobject;
@@ -29,8 +30,33 @@ struct attribute {
const char *name;
struct module *owner;
mode_t mode;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ struct lock_class_key *key;
+ struct lock_class_key skey;
+#endif
};
+/**
+ * sysfs_attr_init - initialize a dynamically allocated sysfs attribute
+ * @attr: struct attribute to initialize
+ *
+ * Initialize a dynamically allocated struct attribute so we can
+ * make lockdep happy. This is a new requirement for attributes
+ * and initially this is only needed when lockdep is enabled.
+ * Lockdep gives a nice error when your attribute is added to
+ * sysfs if you don't have this.
+ */
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#define sysfs_attr_init(attr) \
+do { \
+ static struct lock_class_key __key; \
+ \
+ (attr)->key = &__key; \
+} while(0)
+#else
+#define sysfs_attr_init(attr) do {} while(0)
+#endif
+
struct attribute_group {
const char *name;
mode_t (*is_visible)(struct kobject *,
@@ -74,6 +100,18 @@ struct bin_attribute {
struct vm_area_struct *vma);
};
+/**
+ * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
+ * @attr: struct bin_attribute to initialize
+ *
+ * Initialize a dynamically allocated struct bin_attribute so we
+ * can make lockdep happy. This is a new requirement for
+ * attributes and initially this is only needed when lockdep is
+ * enabled. Lockdep gives a nice error when your attribute is
+ * added to sysfs if you don't have this.
+ */
+#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
+
struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *,char *);
ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
@@ -94,9 +132,12 @@ int __must_check sysfs_move_dir(struct kobject *kobj,
int __must_check sysfs_create_file(struct kobject *kobj,
const struct attribute *attr);
+int __must_check sysfs_create_files(struct kobject *kobj,
+ const struct attribute **attr);
int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
mode_t mode);
void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
+void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
int __must_check sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr);
@@ -110,6 +151,9 @@ int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
const char *name);
void sysfs_remove_link(struct kobject *kobj, const char *name);
+int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
+ const char *old_name, const char *new_name);
+
int __must_check sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp);
int sysfs_update_group(struct kobject *kobj,
@@ -164,6 +208,12 @@ static inline int sysfs_create_file(struct kobject *kobj,
return 0;
}
+static inline int sysfs_create_files(struct kobject *kobj,
+ const struct attribute **attr)
+{
+ return 0;
+}
+
static inline int sysfs_chmod_file(struct kobject *kobj,
struct attribute *attr, mode_t mode)
{
@@ -175,6 +225,11 @@ static inline void sysfs_remove_file(struct kobject *kobj,
{
}
+static inline void sysfs_remove_files(struct kobject *kobj,
+ const struct attribute **attr)
+{
+}
+
static inline int sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr)
{
@@ -203,6 +258,12 @@ static inline void sysfs_remove_link(struct kobject *kobj, const char *name)
{
}
+static inline int sysfs_rename_link(struct kobject *k, struct kobject *t,
+ const char *old_name, const char *new_name)
+{
+ return 0;
+}
+
static inline int sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp)
{
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3492abf..8c9f053 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -512,9 +512,9 @@ extern struct usb_device *usb_get_dev(struct usb_device *dev);
extern void usb_put_dev(struct usb_device *dev);
/* USB device locking */
-#define usb_lock_device(udev) down(&(udev)->dev.sem)
-#define usb_unlock_device(udev) up(&(udev)->dev.sem)
-#define usb_trylock_device(udev) down_trylock(&(udev)->dev.sem)
+#define usb_lock_device(udev) device_lock(&(udev)->dev)
+#define usb_unlock_device(udev) device_unlock(&(udev)->dev)
+#define usb_trylock_device(udev) device_trylock(&(udev)->dev)
extern int usb_lock_device_for_reset(struct usb_device *udev,
const struct usb_interface *iface);
generated by cgit v1.1 at 2024-12-26 18:38:14 +0000