IPoIB: Copy child MTU from parent

[safe/jmp/linux-2.6] / drivers / infiniband / ulp / ipoib / ipoib_vlan.c

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 431fdea..1cdb5cf 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/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;