linux-kernel - Re: [PATCH v9 00/16] perf arm-spe: Refactor decoding & dumping flow

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Date:   Wed, 25 Nov 2020 14:17:56 +0000
From:   Will Deacon <will@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Andre Przywara <andre.przywara@....com>,
        Dave Martin <Dave.Martin@....com>,
        James Clark <james.clark@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Al Grant <Al.Grant@....com>, Wei Li <liwei391@...wei.com>,
        John Garry <john.garry@...wei.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v9 00/16] perf arm-spe: Refactor decoding & dumping flow

On Thu, Nov 19, 2020 at 11:24:25PM +0800, Leo Yan wrote:
> This is patch set v9 for refactoring Arm SPE trace decoding and dumping.
> 
> According to comments and suggestions from patch set v8, it squashs the
> two patches into single one: "perf arm-spe: Refactor printing string to
> buffer" and "perf arm-spe: Consolidate arm_spe_pkt_desc()'s return
> value".
> 
> In the patch 01/16, it renames the function arm_spe_pkt_snprintf() to
> arm_spe_pkt_out_string(), since the function is not the same semantics
> with snprintf(), the renaming can avoid confusion.
> 
> This patch set is cleanly applied on the top of perf/core branch
> with commit 29396cd573da ("perf expr: Force encapsulation on
> expr_id_data").
> 
> This patch set has been tested on Hisilicon D06 platform with commands
> "perf report -D" and "perf script", compared the decoding results
> between with this patch set and without this patch set, "diff" tool
> shows the result as expected.
> 
> I also manually built the patches for arm/arm64/x86_64 and verfied
> every single patch can build successfully.

I'm unable to test this, so I'm please that you can! Anyway, it all looks
fine from a quick look:

Acked-by: Will Deacon <will@...nel.org>

so I think Arnaldo can pick this up when he's ready.

Cheers,

Will