diff --git a/[refs] b/[refs]
index 4e8d39e708b9..8bcd5998a166 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 51c6d61ac58844b5e3e0d28271084c06f6a15371
+refs/heads/master: 3ead6f4d42e2866a48d7abf9bc98553f1110b6df
diff --git a/trunk/include/linux/virtio_config.h b/trunk/include/linux/virtio_config.h
index 39c88c5ad19d..add4790b21fe 100644
--- a/trunk/include/linux/virtio_config.h
+++ b/trunk/include/linux/virtio_config.h
@@ -155,6 +155,9 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev,
 #define virtio_config_val(vdev, fbit, offset, v) \
 	virtio_config_buf((vdev), (fbit), (offset), (v), sizeof(*v))
 
+#define virtio_config_val_len(vdev, fbit, offset, v, len) \
+	virtio_config_buf((vdev), (fbit), (offset), (v), (len))
+
 static inline int virtio_config_buf(struct virtio_device *vdev,
 				    unsigned int fbit,
 				    unsigned int offset,