linux-kernel - Re: [RFC] perf record: dead code perf_event__synthesize_id

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Message-ID: <20180502165737.GF11539@krava>
Date:   Wed, 2 May 2018 18:57:37 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Stephane Eranian <eranian@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>, mingo@...e.hu,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC] perf record: dead code perf_event__synthesize_id_index()

On Wed, May 02, 2018 at 04:38:33PM +0000, Stephane Eranian wrote:
> Hi,
> 
> It looks like perf_event__synthesize_id_index() is dead code in the current
> tip
> tree. I don't see any invocation of the function anywhere in perf.I
> understand why
> you'd want to keep the rest of the code related to  PERF_RECORD_ID_INDEX
> because some perf.data file may have this user-level record type. But the
> synthesize code is not needed anymore, in my opinion.
> 
> Shouldn't we remove this code?

looks like there never was any user of it, probably some
preparation for follow up that haven't happened yet.. Adrian?

jirka