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-rw-r--r--include/linux/device.h32
1 files changed, 29 insertions, 3 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 4d8372d135d..987f5912720 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -90,6 +90,9 @@ int __must_check bus_for_each_drv(struct bus_type *bus,
struct device_driver *start, void *data,
int (*fn)(struct device_driver *, void *));
+void bus_sort_breadthfirst(struct bus_type *bus,
+ int (*compare)(const struct device *a,
+ const struct device *b));
/*
* Bus notifiers: Get notified of addition/removal of devices
* and binding/unbinding of drivers to devices.
@@ -199,6 +202,11 @@ struct class {
struct class_private *p;
};
+struct class_dev_iter {
+ struct klist_iter ki;
+ const struct device_type *type;
+};
+
extern struct kobject *sysfs_dev_block_kobj;
extern struct kobject *sysfs_dev_char_kobj;
extern int __must_check __class_register(struct class *class,
@@ -213,6 +221,13 @@ extern void class_unregister(struct class *class);
__class_register(class, &__key); \
})
+extern void class_dev_iter_init(struct class_dev_iter *iter,
+ struct class *class,
+ struct device *start,
+ const struct device_type *type);
+extern struct device *class_dev_iter_next(struct class_dev_iter *iter);
+extern void class_dev_iter_exit(struct class_dev_iter *iter);
+
extern int class_for_each_device(struct class *class, struct device *start,
void *data,
int (*fn)(struct device *dev, void *data));
@@ -396,7 +411,7 @@ struct device {
spinlock_t devres_lock;
struct list_head devres_head;
- struct list_head node;
+ struct klist_node knode_class;
struct class *class;
dev_t devt; /* dev_t, creates the sysfs "dev" */
struct attribute_group **groups; /* optional groups */
@@ -490,7 +505,6 @@ extern struct device *device_create(struct class *cls, struct device *parent,
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);
/*
@@ -539,7 +553,11 @@ extern const char *dev_driver_string(const struct device *dev);
#define dev_info(dev, format, arg...) \
dev_printk(KERN_INFO , dev , format , ## arg)
-#ifdef DEBUG
+#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#define dev_dbg(dev, format, ...) do { \
+ dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
+ } while (0)
+#elif defined(DEBUG)
#define dev_dbg(dev, format, arg...) \
dev_printk(KERN_DEBUG , dev , format , ## arg)
#else
@@ -555,6 +573,14 @@ extern const char *dev_driver_string(const struct device *dev);
({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
#endif
+/*
+ * dev_WARN() acts like dev_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define dev_WARN(dev, format, arg...) \
+ WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
+
/* Create alias, so I can be autoloaded. */
#define MODULE_ALIAS_CHARDEV(major,minor) \
MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))