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Sender: Namhyung Kim <namhyung@gmail.com>
From:   Namhyung Kim <namhyung@kernel.org>
To:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jiri Olsa <jolsa@kernel.org>
Cc:     Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Ian Rogers <irogers@google.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        linux-perf-users@vger.kernel.org,
        Kan Liang <kan.liang@linux.intel.com>,
        Leo Yan <leo.yan@linaro.org>, Andi Kleen <ak@linux.intel.com>,
        Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
        James Clark <james.clark@arm.com>,
        Xing Zhengjun <zhengjun.xing@linux.intel.com>
Subject: [PATCH] perf stat: Init aggr_map when reporting per-process stat
Date:   Thu, 13 Oct 2022 13:56:55 -0700
Message-Id: <20221013205655.401525-1-namhyung@kernel.org>
In-Reply-To: <CAM9d7cjnAPhOPont3GHSwa9BhAsAFVvqAhFPsyAfQBR8ajrvag@mail.gmail.com>
References: <CAM9d7cjnAPhOPont3GHSwa9BhAsAFVvqAhFPsyAfQBR8ajrvag@mail.gmail.com>
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I'll merge this into the problematic commit.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-stat.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 4cb3ceeb7ba4..9d35a3338976 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1355,7 +1355,11 @@ static struct aggr_cpu_id perf_stat__get_cpu(struct perf_stat_config *config __m
 static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config,
 					      aggr_get_id_t get_id, struct perf_cpu cpu)
 {
-	struct aggr_cpu_id id = aggr_cpu_id__empty();
+	struct aggr_cpu_id id;
+
+	/* per-process mode - should use global aggr mode */
+	if (cpu.cpu == -1)
+		return get_id(config, cpu);
 
 	if (aggr_cpu_id__is_empty(&config->cpus_aggr_map->map[cpu.cpu]))
 		config->cpus_aggr_map->map[cpu.cpu] = get_id(config, cpu);
@@ -2120,11 +2124,9 @@ int process_stat_config_event(struct perf_session *session,
 	if (perf_cpu_map__empty(st->cpus)) {
 		if (st->aggr_mode != AGGR_UNSET)
 			pr_warning("warning: processing task data, aggregation mode not set\n");
-		return 0;
-	}
-
-	if (st->aggr_mode != AGGR_UNSET)
+	} else if (st->aggr_mode != AGGR_UNSET) {
 		stat_config.aggr_mode = st->aggr_mode;
+	}
 
 	if (perf_stat.data.is_pipe)
 		perf_stat_init_aggr_mode();
-- 
2.38.0.413.g74048e4d9e-goog