1 files changed, 16 insertions, 2 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 246937c9cbc..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.
@@ -502,7 +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);
 
 /*
@@ -551,7 +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
@@ -567,6 +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))