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Date:   Mon, 2 Aug 2021 17:03:04 -0700
From:   Richard Cochran <>
To:     "Keller, Jacob E" <>
Cc:     Nicolas Pitre <>, Arnd Bergmann <>,
        "Brandeburg, Jesse" <>,
        "Nguyen, Anthony L" <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Arnd Bergmann <>,
        Kurt Kanzenbach <>,
        "Saleem, Shiraz" <>,
        "Ertman, David M" <>,
        "" <>,
        "" <>,
        "" <>
Subject: Re: [PATCH net-next v2] ethernet/intel: fix PTP_1588_CLOCK

On Mon, Aug 02, 2021 at 11:45:09PM +0000, Keller, Jacob E wrote:
> Ok, so basically: if any driver that needs PTP core is on, PTP core is on, with no way to disable it.

Right.  Some MAC drivers keep the PTP stuff under a second Kconfig option.

IIRC, we (davem and netdev) decided not to do that going forwards.  If
a MAC has PTP features, then users will sure want it enabled.

So, let the MACs use "depends" or "select" PTP core.  I guess that
"select" is more user friendly.

And Posix timers: never disable this.  After all, who wants an
embedded system without timer_create()?  Seriously?


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