linux-kernel - Re: [PATCH v3 4/8] perf cs-etm: Fix bitmap for option

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Date:   Sat, 6 Mar 2021 11:05:12 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Daniel Kiss <Daniel.Kiss@....com>,
        Denis Nikitin <denik@...omium.org>,
        Al Grant <al.grant@....com>, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/8] perf cs-etm: Fix bitmap for option

Hi Arnaldo,

On Fri, Mar 05, 2021 at 02:29:44PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, Feb 09, 2021 at 09:58:55AM +0800, Leo Yan escreveu:
> > On Mon, Feb 08, 2021 at 01:46:41PM -0700, Mathieu Poirier wrote:
> > > On Sat, Feb 06, 2021 at 11:08:29PM +0800, Leo Yan wrote:
> > > > From: Suzuki K Poulose <suzuki.poulose@....com>
> > > > 
> > > > When set option with macros ETM_OPT_CTXTID and ETM_OPT_TS, it wrongly
> > > > takes these two values (14 and 28 prespectively) as bit masks, but
> > > > actually both are the offset for bits.  But this doesn't lead to
> > > > further failure due to the AND logic operation will be always true for
> > > > ETM_OPT_CTXTID / ETM_OPT_TS.
> > > > 
> > > > This patch defines new independent macros (rather than using the
> > > > "config" bits) for requesting the "contextid" and "timestamp" for
> > > > cs_etm_set_option().
> > > > 
> > > > [leoy: Extract the change as a separate patch for easier review]
> > > 
> > > This should go just above your name - see below.
> 
> I fixed this up and added this patch to my perf/urgent branch, for
> v5.12, since the kernel bits are upstream and this is a fix.

Yeah, it makes sense to pick this patch into perf/urgent branch since
it's a fixing patch.

Actually, this patch has been merged into the tmp.perf/core branch [1],
after you move it to the perf/urgent branch, I can confirm all other
patches for perf tool in this series have been merged into the
tmp.perf/core branch.

Thanks,
Leo

[1] https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/commit/?h=tmp.perf/core&id=8c559e8d68630d64d932bada633705f6551427df