Re: [PATCH v4 2/2] net: dsa: ocelot: Add support for QinQ Operation

From: hongbo.wang@nxp.com
Date: Thu, 30 Jul 2020 18:25:05 +0800

+	if (vlan->proto == ETH_P_8021AD) {
+		ocelot->enable_qinq = true;
+		ocelot_port->qinq_mode = true;
+	}

 ...

+	if (vlan->proto == ETH_P_8021AD) {
+		ocelot->enable_qinq = false;
+		ocelot_port->qinq_mode = false;
+	}
+

I don't understand how this can work just by using a boolean to track
the state.

This won't work properly if you are handling multiple QinQ VLAN entries.

Also, I need Andrew and Florian to review and ACK the DSA layer changes
that add the protocol value to the device notifier block.