linux-kernel - Re: [RFC PATCH 1/3] sched/topology: Split out SD

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Message-ID: <20200324083550.GE6103@e123083-lin>
Date:   Tue, 24 Mar 2020 09:35:50 +0100
From:   Morten Rasmussen <morten.rasmussen@....com>
To:     Valentin Schneider <valentin.schneider@....com>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        peterz@...radead.org, vincent.guittot@...aro.org,
        dietmar.eggemann@....com
Subject: Re: [RFC PATCH 1/3] sched/topology: Split out SD_* flags declaration
 to its own file

On Mon, Mar 23, 2020 at 05:10:00PM +0000, Valentin Schneider wrote:
> 
> Hi Morten,
> 
> Just as a heads-up, I think those changes would better fit 2/3, or be
> in their own patch. 1/3 is just a straight up code move, with no changes
> to the existing comments.

I realized that when I got to 2/3, and yes, most of the comments are not
really related to your proposal it more things we could fix while we are
touching that code anyway.

> On Mon, Mar 23 2020, Morten Rasmussen wrote:
> > On Wed, Mar 11, 2020 at 06:33:18PM +0000, Valentin Schneider wrote:
> >> +/* Domain members share power domain */
> >> +SD_FLAG(SD_SHARE_POWERDOMAIN,   7)
> >
> > This flag is set only by 32-bit arm and has never had any effect. I
> > think it was the beginning of something years ago that hasn't
> > progressed. Perhaps we can remove it now?
> >
> 
> Right, I don't think I've seen anything recent that uses that flag.

AFAIK, it has never been used, only set.

Morten