diff --git a/[refs] b/[refs]
index f2738a1e58b3..81ba23884bd2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 17be18c2b5f5c8acd75e4edf1211abf2cfd60fa5
+refs/heads/master: a91befc116f424883602fb7b57b63b5fcfe18719
diff --git a/trunk/include/linux/mod_devicetable.h b/trunk/include/linux/mod_devicetable.h
index 5a123774c2e6..468819cdde87 100644
--- a/trunk/include/linux/mod_devicetable.h
+++ b/trunk/include/linux/mod_devicetable.h
@@ -410,6 +410,8 @@ struct virtio_device_id {
  */
 struct hv_vmbus_device_id {
 	__u8 guid[16];
+	kernel_ulong_t driver_data	/* Data private to the driver */
+			__attribute__((aligned(sizeof(kernel_ulong_t))));
 };
 
 /* i2c */