linux-kernel - Re: [PATCH net-next v3] ethernet: fix PTP_1588

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Message-ID: <CAK8P3a2ZTmtkU9StyWMG=TwODxqAVEN_AFyGdyerr9C5vUMaVA@mail.gmail.com>
Date:   Thu, 5 Aug 2021 10:11:33 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     "Keller, Jacob E" <jacob.e.keller@...el.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Richard Cochran <richardcochran@...il.com>,
        Arnd Bergmann <arnd@...db.de>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        Tariq Toukan <tariqt@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Jiri Pirko <jiri@...dia.com>, Ido Schimmel <idosch@...dia.com>,
        Shannon Nelson <snelson@...sando.io>,
        "drivers@...sando.io" <drivers@...sando.io>,
        Sergei Shtylyov <sergei.shtylyov@...il.com>,
        Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Yangbo Lu <yangbo.lu@....com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Simon Horman <simon.horman@...ronome.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: Re: [PATCH net-next v3] ethernet: fix PTP_1588_CLOCK dependencies

On Wed, Aug 4, 2021 at 10:52 PM Keller, Jacob E
<jacob.e.keller@...el.com> wrote:

> > diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
> > b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
> > index af84f72bf08e..4e18b64dceb9 100644
> > --- a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
> > +++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
> > @@ -6,6 +6,7 @@
> >  config PCH_GBE
> >       tristate "OKI SEMICONDUCTOR IOH(ML7223/ML7831) GbE"
> >       depends on PCI && (X86_32 || COMPILE_TEST)
> > +     depends on PTP_1588_CLOCK
> >       select MII
> >       select PTP_1588_CLOCK_PCH
> >       select NET_PTP_CLASSIFY
>
> I did notice this one driver which now directly depends on PTP_1558_CLOCK, but I
> suspect that's because it actually doesn't work if you disable PTP?

Yes, it's the 'select PTP_1588_CLOCK_PCH' and 'select NET_PTP_CLASSIFY'
that actually need it.

      Arnd