netdev - Re: [PATCH net-next] ptp: add debugfs support for IDT family of timing devices

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Message-ID: <20200711183839.GA26032@hoboy>
Date:   Sat, 11 Jul 2020 11:38:39 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Jakub Kicinski <kuba@...nel.org>, min.li.xe@...esas.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] ptp: add debugfs support for IDT family of
 timing devices

On Sat, Jul 11, 2020 at 06:38:06PM +0200, Andrew Lunn wrote:
> But configuration does not belong in debugfs. It would be good to
> explain what is being configured by these parameters, then we can
> maybe make a suggestion about the correct API to use.

Can we at least enumerate the possibilities?

- driver specific char device
- private ioctls
- debugfs

What else?

My understanding is that debugfs is the preferred place for this kind
of thing.  Of course nobody expects any kind of stable ABI for this,
and so that is a non-issue IHMO.

Thanks,
Richard