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Commit bd360671 authored by Eli Cohen's avatar Eli Cohen Committed by Roland Dreier
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IPoIB: Use dev_set_mtu() to change mtu 



When the driver sets the MTU of the net device outside of its
change_mtu method, it should make use of dev_set_mtu() instead of
directly setting the mtu field of struct netdevice.  Otherwise
functions registered to be called upon MTU change will not get called
(this is done through call_netdevice_notifiers() in dev_set_mtu()).

Signed-off-by: default avatarEli Cohen <eli@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent c8c2afe3

drivers/infiniband/ulp/ipoib/ipoib_cm.c

+1 −1
Original line number Diff line number Diff line
@@ -1458,7 +1458,7 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, 
			if (priv->hca_caps & IB_DEVICE_UD_TSO)

				dev->features |= NETIF_F_TSO;

		}

		dev->mtu = min(priv->mcast_mtu, dev->mtu);

		dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));

		rtnl_unlock();

		ipoib_flush_paths(dev);

drivers/infiniband/ulp/ipoib/ipoib_multicast.c

+1 −1
Original line number Diff line number Diff line
@@ -577,7 +577,7 @@ void ipoib_mcast_join_task(struct work_struct *work) 


	if (!ipoib_cm_admin_enabled(dev)) {

		rtnl_lock();

		dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);

		dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));

		rtnl_unlock();

	}