Re: [PATCH net-next v3 5/6] net: dsa: Initialize CPU port ethtool ops per tree

+int dsa_cpu_port_ethtool_setup(struct dsa_switch_tree *dst,
+			       struct dsa_switch *ds)
+{
+	struct net_device *master;
+	struct ethtool_ops *cpu_ops;
+
+	master = ds->dst->master_netdev;

You pass in dst as a parameter, and then don't use it!

+void dsa_cpu_port_ethtool_restore(struct dsa_switch_tree *dst,
+				  struct dsa_switch *ds)
+{
+	struct net_device *master;
+
+	master = ds->dst->master_netdev;

Same here.

     Andrew