diff --git a/[refs] b/[refs]
index 36cc0c11b7ca..43a07b960bd3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: baaad380c0aa955f7d62e846467316c94067f1a5
+refs/heads/master: b4132efa1a47858d741ecb05b8735e6fcb603bc8
diff --git a/trunk/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/trunk/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 431fdeaa2dc4..1cdb5cfb0ff1 100644
--- a/trunk/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/trunk/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -90,6 +90,9 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 	}
 
 	priv->max_ib_mtu = ppriv->max_ib_mtu;
+	/* MTU will be reset when mcast join happens */
+	priv->dev->mtu   = IPOIB_UD_MTU(priv->max_ib_mtu);
+	priv->mcast_mtu  = priv->admin_mtu = priv->dev->mtu;
 	set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
 
 	priv->pkey = pkey;