---

yaml
---
r: 135176
b: refs/heads/master
c: b0832a2
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f7efb6ccc2113911e4e064f78bcd0343c4673038
+refs/heads/master: b0832a2961022a076c812384435b5f0290b3fc91

trunk/drivers/net/macvlan.c

@@ -461,12 +461,13 @@ static int macvlan_newlink(struct net_device *dev,
 	if (lowerdev == NULL)
 		return -ENODEV;
 
-	/* Don't allow macvlans on top of other macvlans - its not really
-	 * wrong, but lockdep can't handle it and its not useful for anything
-	 * you couldn't do directly on top of the real device.
+	/* When creating macvlans on top of other macvlans - use
+	 * the real device as the lowerdev.
 	 */
-	if (lowerdev->rtnl_link_ops == dev->rtnl_link_ops)
-		return -ENODEV;
+	if (lowerdev->rtnl_link_ops == dev->rtnl_link_ops) {
+		struct macvlan_dev *lowervlan = netdev_priv(lowerdev);
+		lowerdev = lowervlan->lowerdev;
+	}
 
 	if (!tb[IFLA_MTU])
 		dev->mtu = lowerdev->mtu;