linux-kernel - Re: [PATCH net-next] ptp: add vclock timestamp conversion IOCTL

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Message-ID: <20211009182536.GC21759@hoboy.vegasvil.org>
Date:   Sat, 9 Oct 2021 11:25:36 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Sebastien Laveze <sebastien.laveze@....nxp.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        yangbo.lu@....com, yannick.vignon@....nxp.com,
        rui.sousa@....nxp.com
Subject: Re: [PATCH net-next] ptp: add vclock timestamp conversion IOCTL

On Sat, Oct 09, 2021 at 11:24:14AM -0700, Richard Cochran wrote:
> Show that it always works, even with worst case crazy adjustments.

For example:

   * large frequency adjustments are more problematic. I've checked that
     some drivers allow up to 10^6 ppm...
     This could lead to non-negligible error.

Thanks,
Richard