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

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Message-ID: <CAK8P3a1tKjWo6RQq9nxDAuEWyEF=p8HDBzYG+=r3HVG9k0oUEQ@mail.gmail.com>
Date:   Tue, 3 Aug 2021 22:29:52 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     "Keller, Jacob E" <jacob.e.keller@...el.com>
Cc:     Richard Cochran <richardcochran@...il.com>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        "Saleem, Shiraz" <shiraz.saleem@...el.com>,
        "Ertman, David M" <david.m.ertman@...el.com>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v2] ethernet/intel: fix PTP_1588_CLOCK dependencies

On Mon, Aug 2, 2021 at 10:32 PM Arnd Bergmann <arnd@...nel.org> wrote:

> config MAY_USE_PTP_1588_CLOCK
>        def_tristate PTP_1588_CLOCK || !PTP_1588_CLOCK
>
>  config E1000E
>         tristate "Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support"
>         depends on PCI && (!SPARC32 || BROKEN)
> +       depends on MAY_USE_PTP_1588_CLOCK
>         select CRC32
> -       imply PTP_1588_CLOCK

I've written up the patch to do this all over the kernel now, and started an
overnight randconfig build session with this applied:

https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commit/?h=ptp-1588-optional&id=3f69b7366cfd4b2c048c76be5299b38066933ee1

       Arnd