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net: dpaa2-switch: phylink_disconnect_phy needs rtnl_lock

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There is an ASSERT_RTNL in phylink_disconnect_phy which triggers
whenever dpaa2_switch_port_disconnect_mac is called.

To follow the pattern established by dpaa2_eth_disconnect_mac, take the
rtnl_mutex every time we call dpaa2_switch_port_disconnect_mac.

Fixes: 84cba72956 ("dpaa2-switch: integrate the MAC endpoint support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-08-19 17:40:18 +03:00 committed by David S. Miller
parent 6985157ce8
commit d52ef12f7d
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
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@ -1508,10 +1508,12 @@ static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg)
}
if (status & DPSW_IRQ_EVENT_ENDPOINT_CHANGED) {
rtnl_lock();
if (dpaa2_switch_port_has_mac(port_priv))
dpaa2_switch_port_disconnect_mac(port_priv);
else
dpaa2_switch_port_connect_mac(port_priv);
rtnl_unlock();
}
out:
@ -3201,7 +3203,9 @@ static int dpaa2_switch_remove(struct fsl_mc_device *sw_dev)
for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
port_priv = ethsw->ports[i];
unregister_netdev(port_priv->netdev);
rtnl_lock();
dpaa2_switch_port_disconnect_mac(port_priv);
rtnl_unlock();
free_netdev(port_priv->netdev);
}