linux-kernel - Re: [PATCH] perf arm-spe: Use old behavior when opening old SPE files

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Message-Id: <173039473017.1704862.15529653734308857023.b4-ty@kernel.org>
Date: Thu, 31 Oct 2024 10:12:10 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: linux-perf-users@...r.kernel.org, leo.yan@....com, 
 James Clark <james.clark@...aro.org>
Cc: Ryan.Roberts@....com, Kiel.Friedt@....com, Julio.Suarez@....com, 
 John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>, 
 Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...ux.dev>, 
 Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 "Liang, Kan" <kan.liang@...ux.intel.com>, 
 Besar Wicaksono <bwicaksono@...dia.com>, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf arm-spe: Use old behavior when opening old SPE
 files

On Tue, 29 Oct 2024 14:37:33 +0000, James Clark wrote:

> Since the linked commit, we stopped interpreting data source if the
> perf.data file doesn't have the new metadata version. This means that
> perf c2c will show no samples in this case.
> 
> Keep the old behavior so old files can be opened, but also still show
> the new warning that updating might improve the decoding.
> 
> [...]

Applied to perf-tools-next, thanks!

Best regards,
Namhyung