netdev - Re: [PATCH net-next] net: mdio: Add netlink interface

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Date:   Tue, 7 Mar 2023 14:49:27 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     sean.anderson@...o.com, davem@...emloft.net, edumazet@...gle.com,
        f.fainelli@...il.com, hkallweit1@...il.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux@...linux.org.uk,
        netdev@...r.kernel.org, olteanv@...il.com, pabeni@...hat.com,
        tobias@...dekranz.com
Subject: Re: [PATCH net-next] net: mdio: Add netlink interface

On Tue, Mar 07, 2023 at 12:23:07PM +0100, Michael Walle wrote:
> > To prevent userspace phy drivers, writes are disabled by default, and can
> > only be enabled by editing the source.
> 
> Maybe we can just taint the kernel using add_taint()? I'm not sure if
> that will prevent vendors writing user space drivers. Thoughts?

I was thinking about taint as well. But keep the same code structure,
you need to edit it to enable write.

    Andrew