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Message-ID: <20190725173521.GM31381@hirez.programming.kicks-ass.net>
Date:   Thu, 25 Jul 2019 19:35:21 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     hpa@...or.com, tglx@...utronix.de, mingo@...nel.org,
        gustavo@...eddedor.com, torvalds@...ux-foundation.org,
        acme@...nel.org, kan.liang@...ux.intel.com, namhyung@...nel.org,
        jolsa@...hat.com, linux-kernel@...r.kernel.org,
        alexander.shishkin@...ux.intel.com, keescook@...omium.org,
        linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/urgent] perf/x86/intel: Mark expected switch
 fall-throughs

On Thu, Jul 25, 2019 at 07:06:13PM +0200, Borislav Petkov wrote:
> On Thu, Jul 25, 2019 at 09:27:10AM -0700, tip-bot for Gustavo A. R. Silva wrote:
> > Commit-ID:  289a2d22b5b611d85030795802a710e9f520df29
> > Gitweb:     https://git.kernel.org/tip/289a2d22b5b611d85030795802a710e9f520df29
> > Author:     Gustavo A. R. Silva <gustavo@...eddedor.com>
> > AuthorDate: Mon, 24 Jun 2019 11:19:13 -0500
> > Committer:  Ingo Molnar <mingo@...nel.org>
> > CommitDate: Thu, 25 Jul 2019 15:57:03 +0200
> > 
> > perf/x86/intel: Mark expected switch fall-throughs
> > 
> > In preparation to enabling -Wimplicit-fallthrough, mark switch
> > cases where we are expecting to fall through.
> > 
> > This patch fixes the following warnings:
> 
> "This patch"
> 
> > 
> >   arch/x86/events/intel/core.c: In function ‘intel_pmu_init’:
> >   arch/x86/events/intel/core.c:4959:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
> >   arch/x86/events/intel/core.c:5008:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
> > 
> > Warning level 3 was used: -Wimplicit-fallthrough=3
> > 
> > This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough.
> 
> Another "This patch"
> 
> I think it is clear about which patch the commit message is talking
> about, without stating it explicitly.

It fits with the whole atrocious 'comments are significant' premise that
the Changelog is atrocious too :-)

/me runs for cover.

Seriously though; I detest these patches and we really, as in _really_
should have done that attribute thing.

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