linux-kernel - Re: [PATCH 2/3] perf/x86/rapl: Fix energy counter detection

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Date:   Wed, 3 Feb 2021 15:21:31 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Zhang, Rui" <rui.zhang@...el.com>
Cc:     "mingo@...hat.com" <mingo@...hat.com>,
        "acme@...nel.org" <acme@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "alexander.shishkin@...ux.intel.com" 
        <alexander.shishkin@...ux.intel.com>,
        "jolsa@...hat.com" <jolsa@...hat.com>,
        "namhyung@...nel.org" <namhyung@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "kan.liang@...ux.intel.com" <kan.liang@...ux.intel.com>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>
Subject: Re: [PATCH 2/3] perf/x86/rapl: Fix energy counter detection

On Sun, Jan 17, 2021 at 02:44:04PM +0000, Zhang, Rui wrote:

> > But it doesn't fix anything.. there's not anything broken, except on that daft
> > SPR thing.
> 
> Well, yes.
> Before SPR, this is just a potential issue. But things on SPR suggests
> that this potential issue may become a real one.  So are you
> suggesting me to also include the SPR information as the justification
> of this patch?

Yes, and fix the subject. It doesn't fix anything, as there isn't
anything broken.

Just say that upcoming SPR will need this.