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perf stat: Move common code in print_metric_headers()
The struct perf_stat_output_ctx is set in a loop with the same values. Move the code out of the loop and keep the loop minimal. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221107213314.3239159-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -835,11 +835,16 @@ static void print_metric_headers(struct perf_stat_config *config,
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struct evlist *evlist,
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const char *prefix, bool no_indent)
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{
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struct perf_stat_output_ctx out;
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struct evsel *counter;
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struct outstate os = {
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.fh = config->output
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};
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struct perf_stat_output_ctx out = {
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.ctx = &os,
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.print_metric = print_metric_header,
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.new_line = new_line_metric,
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.force_header = true,
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};
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bool first = true;
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if (config->json_output && !config->interval)
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@ -863,13 +868,11 @@ static void print_metric_headers(struct perf_stat_config *config,
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/* Print metrics headers only */
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evlist__for_each_entry(evlist, counter) {
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os.evsel = counter;
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out.ctx = &os;
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out.print_metric = print_metric_header;
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if (!first && config->json_output)
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fprintf(config->output, ", ");
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first = false;
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out.new_line = new_line_metric;
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out.force_header = true;
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perf_stat__print_shadow_stats(config, counter, 0,
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0,
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&out,
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