+static void ar9331_get_stats64(struct dsa_switch *ds, int port,
+			       struct rtnl_link_stats64 *s)
+{
+	struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
+	struct ar9331_sw_port *p = &priv->port[port];
+
+	spin_lock(&p->stats_lock);
+	memcpy(s, &p->stats, sizeof(*s));
+	spin_unlock(&p->stats_lock);
+}

This should probably wait until Vladimir's changes for stat64 are
merged, so this call can sleep. You can then return up to date
statistics.

	Andrew