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From: "Keller, Jacob E" <jacob.e.keller@intel.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Richard Cochran <richardcochran@gmail.com>,
	Nicolas Pitre <nico@fluxnic.net>,
	"Brandeburg, Jesse" <jesse.brandeburg@intel.com>,
	"Nguyen, Anthony L" <anthony.l.nguyen@intel.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Kurt Kanzenbach <kurt@linutronix.de>,
	"Saleem, Shiraz" <shiraz.saleem@intel.com>,
	"Ertman, David M" <david.m.ertman@intel.com>,
	"intel-wired-lan@lists.osuosl.org"
	<intel-wired-lan@lists.osuosl.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH net-next v2] ethernet/intel: fix PTP_1588_CLOCK dependencies
Date: Tue, 3 Aug 2021 23:25:42 +0000	[thread overview]
Message-ID: <CO1PR11MB5089B32E93853E4723B02819D6F09@CO1PR11MB5089.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAK8P3a06enZOf=XyZ+zcAwBczv41UuCTz+=0FMf2gBz1_cOnZQ@mail.gmail.com>



> -----Original Message-----
> From: Arnd Bergmann <arnd@kernel.org>
> Sent: Tuesday, August 03, 2021 11:27 AM
> To: Keller, Jacob E <jacob.e.keller@intel.com>
> Cc: Richard Cochran <richardcochran@gmail.com>; Nicolas Pitre
> <nico@fluxnic.net>; Brandeburg, Jesse <jesse.brandeburg@intel.com>; Nguyen,
> Anthony L <anthony.l.nguyen@intel.com>; David S. Miller
> <davem@davemloft.net>; Jakub Kicinski <kuba@kernel.org>; Arnd Bergmann
> <arnd@arndb.de>; Kurt Kanzenbach <kurt@linutronix.de>; Saleem, Shiraz
> <shiraz.saleem@intel.com>; Ertman, David M <david.m.ertman@intel.com>;
> intel-wired-lan@lists.osuosl.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: Re: [PATCH net-next v2] ethernet/intel: fix PTP_1588_CLOCK
> dependencies
> 
> On Tue, Aug 3, 2021 at 7:19 PM Keller, Jacob E <jacob.e.keller@intel.com> wrote:
> > > On Tue, Aug 3, 2021 at 6:14 PM Richard Cochran
> <richardcochran@gmail.com> wrote:
> 
> > There is an alternative solution to fixing the imply keyword:
> >
> > Make the drivers use it properly by *actually* conditionally enabling the feature
> only when IS_REACHABLE, i.e. fix ice so that it uses IS_REACHABLE instead of
> IS_ENABLED, and so that its stub implementation in ice_ptp.h actually just silently
> does nothing but returns 0 to tell the rest of the driver things are fine.
> 
> I would consider IS_REACHABLE() part of the problem, not the solution, it makes
> things magically build, but then surprises users at runtime when they do not get
> the intended behavior.
> 
>       Arnd

Fair enough. I am also fine with just "depends". We can make most of the drivers simply always enable it, and if a specific driver is used in some embedded setup that has requirements on minimizing things that driver can be setup to use a 2nd config symbol, and all of the other drivers that aren't used can be disabled (as that minimizer is probably already doing!)

I think we've found the best route to go then!

Thanks,
Jake

  reply	other threads:[~2021-08-03 23:25 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 14:59 Arnd Bergmann
2021-08-02 16:49 ` Richard Cochran
2021-08-02 19:54   ` Keller, Jacob E
2021-08-02 20:32     ` Arnd Bergmann
2021-08-02 20:46       ` Keller, Jacob E
2021-08-02 20:59         ` Arnd Bergmann
2021-08-02 21:09           ` Keller, Jacob E
2021-08-02 21:10           ` Keller, Jacob E
2021-08-02 21:22           ` Nicolas Pitre
2021-08-03 20:29       ` Arnd Bergmann
2021-08-02 23:09     ` Richard Cochran
2021-08-02 23:45       ` Keller, Jacob E
2021-08-03  0:03         ` Richard Cochran
2021-08-03  6:59       ` Arnd Bergmann
2021-08-03 15:55         ` Richard Cochran
2021-08-03 16:14           ` Richard Cochran
2021-08-03 17:00             ` Arnd Bergmann
2021-08-03 17:18               ` Keller, Jacob E
2021-08-03 18:27                 ` Arnd Bergmann
2021-08-03 23:25                   ` Keller, Jacob E [this message]
2021-08-04 11:18                   ` Arnd Bergmann
2021-08-03 20:54               ` Richard Cochran
2021-08-04 20:53                 ` Keller, Jacob E

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