diff --git a/[refs] b/[refs]
index 8afb180ef3d9..ea0246d7335e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a12c27c5eac8e0b1ee6988c32a29100abe1a99ef
+refs/heads/master: 0724e5fd77b44338fb12af35f0577bd4142903e8
diff --git a/trunk/drivers/staging/hv/storvsc_api.h b/trunk/drivers/staging/hv/storvsc_api.h
index c98139cc7baf..b60a05879f99 100644
--- a/trunk/drivers/staging/hv/storvsc_api.h
+++ b/trunk/drivers/staging/hv/storvsc_api.h
@@ -28,6 +28,7 @@
 #include <linux/kernel.h>
 #include "vstorage.h"
 #include "vmbus_api.h"
+#include "vmbus.h"
 
 /* Defines */
 #define STORVSC_RING_BUFFER_SIZE			(20*PAGE_SIZE)
@@ -153,6 +154,13 @@ static inline struct storvsc_driver_object *hvdr_to_stordr(struct hv_driver *d)
 	return container_of(d, struct storvsc_driver_object, base);
 }
 
+static inline
+struct storvsc_driver_object *drv_to_stordrv(struct device_driver *d)
+{
+	struct hv_driver *hvdrv = drv_to_hv_drv(d);
+	return hvdr_to_stordr(hvdrv);
+}
+
 /* Interface */
 
 int stor_vsc_on_device_add(struct hv_device *device,