linux-kernel - Re: [PATCH 21/21] perf/x86/intel/lbr: Support XSAVES for arch LBR read

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Date:   Mon, 22 Jun 2020 22:31:03 +0300
From:   Cyrill Gorcunov <gorcunov@...il.com>
To:     "Liang, Kan" <kan.liang@...ux.intel.com>
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        tglx@...utronix.de, bp@...en8.de, x86@...nel.org,
        linux-kernel@...r.kernel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, dave.hansen@...el.com, yu-cheng.yu@...el.com,
        bigeasy@...utronix.de, hpa@...or.com,
        alexey.budankov@...ux.intel.com, eranian@...gle.com,
        ak@...ux.intel.com, like.xu@...ux.intel.com,
        yao.jin@...ux.intel.com
Subject: Re: [PATCH 21/21] perf/x86/intel/lbr: Support XSAVES for arch LBR
 read

On Mon, Jun 22, 2020 at 03:11:07PM -0400, Liang, Kan wrote:
> > 
> > The goto and "return" statement before the "rollback" label
> > looks pretty ugly. I'm sorry I didn't follow the series
> > in details so if you plan to add more handlers at "rollback"
> > then sure.
> > 
> 
> There were several handlers when I first implemented the function, but they
> are removed now. I don't think I will add more handlers in the next version.
> I will remove the "rollback" label.
> 
> Thanks for pointing it out.

This could be done on top of the series of course, no need to resend
for this sole change I think.