linux-kernel - Re: [PATCH v2 1/3] perf stat: Remove dead code

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Date:   Thu, 10 Sep 2020 14:38:24 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     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@...hat.com>, Kajol Jain <kjain@...ux.ibm.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Thomas Richter <tmricht@...ux.ibm.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2 1/3] perf stat: Remove dead code

Hi Ian,

On Thu, Sep 10, 2020 at 12:26 PM Ian Rogers <irogers@...gle.com> wrote:
>
> No need to set os.evsel twice.
>
> Signed-off-by: Ian Rogers <irogers@...gle.com>

Acked-by: Namhyung Kim <namhyung@...nel.org>

Btw, I think setting the 'out' variable can be moved out of the loop.

Thanks
Namhyung

> ---
>  tools/perf/util/stat-display.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
> index 493ec372fdec..4b57c0c07632 100644
> --- a/tools/perf/util/stat-display.c
> +++ b/tools/perf/util/stat-display.c
> @@ -946,7 +946,6 @@ static void print_metric_headers(struct perf_stat_config *config,
>                 out.print_metric = print_metric_header;
>                 out.new_line = new_line_metric;
>                 out.force_header = true;
> -               os.evsel = counter;
>                 perf_stat__print_shadow_stats(config, counter, 0,
>                                               0,
>                                               &out,
> --
> 2.28.0.526.ge36021eeef-goog
>