We need to hold rnl lock in suspend and resume callbacks because phylink
requires it. Otherwise we will get a WARN() in suspend and resume.
Also, move phylink start and stop callbacks to inside device's internal
lock so that we prevent concurrent HW accesses.
Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
Reported-by: Christophe ROULLIER <christophe.roullier@st.com>
Tested-by: Christophe ROULLIER <christophe.roullier@st.com>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
if (!ndev || !netif_running(ndev))
return 0;
- phylink_stop(priv->phylink);
-
mutex_lock(&priv->lock);
+ rtnl_lock();
+ phylink_stop(priv->phylink);
+ rtnl_unlock();
+
netif_device_detach(ndev);
stmmac_stop_all_queues(priv);
stmmac_start_all_queues(priv);
- mutex_unlock(&priv->lock);
-
+ rtnl_lock();
phylink_start(priv->phylink);
+ rtnl_unlock();
+
+ mutex_unlock(&priv->lock);
return 0;
}