netdev - Re: [PATCH net-next,V2] Add LAN9352 Ethernet Driver

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Date:	Tue, 16 Feb 2016 15:43:58 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	andrew@...n.ch
Cc:	Bryan.Whitehead@...rochip.com, f.fainelli@...il.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next,V2] Add LAN9352 Ethernet Driver

From: Andrew Lunn <andrew@...n.ch>
Date: Tue, 16 Feb 2016 21:36:25 +0100

> So this is the discussion we need to have.
> 
> The interface to the outside work is the two switch ports with real
> PHYs. What you are implementing is an Ethernet driver for an internal
> port connected to the switch. This port does not go to the outside
> world. This driver provides no way to control the ports to the outside
> world and you have no short term plan to actually implement control of
> the ports connected to the outside world.
> 
> Should the Linux community accept this driver in this state?
> 
> I would prefer to see a simple switchdev or DSA driver which exposes
> the two external ports.

I do not think, with all the infrastructure we have, that we should accept
pure ethernet drivers for such devices any more.

About year ago I would have responded differently, but these days all of
the necessary support and infrastructure is there, and reasonable easy
for driver authors to use.