AcoSail/kernel_optimize_test
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IPoIB: Use dev_set_mtu() to change mtu

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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: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Eli Cohen 2008-07-14 23:48:51 -07:00 committed by Roland Dreier
parent c8c2afe360
commit bd3606715e
2 changed files with 2 additions and 2 deletions
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2
drivers/infiniband/ulp/ipoib/ipoib_cm.c
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@ -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);

2
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -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();
}