> -----Original Message-----
> From: Andrew Lunn [mailto:and...@lunn.ch]
> Sent: Wednesday, February 22, 2017 6:21 PM
> To: YUAN Linyu
> Cc: Florian Fainelli; David S . Miller; netdev@vger.kernel.org; cug...@163.com
> Subject: Re: create drivers/net/mdio and move mdio drivers into it
> 
> On Wed, Feb 22, 2017 at 05:38:49AM +0000, YUAN Linyu wrote:
> > Hi Florian,
> >
> > 1.
> > Let's go back to original topic,
> > Can we move all mdio dirvers into drivers/net/mdio ?
> 
> Hi Yuan
> 
> Please could you explain what benefit this brings. Please also list
> all the downsides for such a move. As Florian said, we need to ensure
> such a move adds more value than it removes.
At beginning I think mdio and phy are two different things, mdio should have 
it's home.

> 
> > Per may understanding,
> > I don't know why create a struct mii_bus instance to represent a mdio device
> in current mdio driver.
> > Why not create a struct mdio_device instance, it's easy to understand.
> > (We can move part of member of mii_bus to mdio_device).
> 
> Please take a step back. What are you trying to achieve. What is the
> big picture. What cannot you do with the current design?
Big picture is we can remove struct mii_bus, and use struct mdio_device/driver 
for mdio controller.

> 
>     Andrew

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