linux-kernel - Re: [PATCH net-next v2] ethernet/intel: fix PTP_1588

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Date:   Mon, 2 Aug 2021 09:49:07 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Nicolas Pitre <nicolas.pitre@...aro.org>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Shiraz Saleem <shiraz.saleem@...el.com>,
        Dave Ertman <david.m.ertman@...el.com>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2] ethernet/intel: fix PTP_1588_CLOCK
 dependencies

On Mon, Aug 02, 2021 at 04:59:33PM +0200, Arnd Bergmann wrote:

> This is a recurring problem in many drivers, and we have discussed
> it several times befores, without reaching a consensus. I'm providing
> a link to the previous email thread for reference, which discusses
> some related problems, though I can't find what reasons there were
> against the approach with the extra Kconfig dependency.

Quoting myself in the thread from 12 Nov 2020:

   This whole "implies" thing turned out to be a colossal PITA.

   I regret the fact that it got merged.  It wasn't my idea.

This whole thing came about because Nicolas Pitre wanted to make PHC
core support into a module and also to be able to remove dynamic posix
clock support for tinification.  It has proved to be a never ending
source of confusion.

Let's restore the core functionality and remove "implies" for good.

Thanks,
Richard