linux-kernel - [PATCH V3 04/17] perf stat: Clear HEADER_CPU_PMU

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Date:   Fri, 13 Mar 2020 11:33:06 -0700
From:   kan.liang@...ux.intel.com
To:     acme@...nel.org, jolsa@...hat.com, peterz@...radead.org,
        mingo@...hat.com, linux-kernel@...r.kernel.org
Cc:     namhyung@...nel.org, adrian.hunter@...el.com,
        mathieu.poirier@...aro.org, ravi.bangoria@...ux.ibm.com,
        alexey.budankov@...ux.intel.com, vitaly.slobodskoy@...el.com,
        pavel.gerasimov@...el.com, mpe@...erman.id.au, eranian@...gle.com,
        ak@...ux.intel.com, Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V3 04/17] perf stat: Clear HEADER_CPU_PMU_CAPS

From: Kan Liang <kan.liang@...ux.intel.com>

The CPU PMU capabilities information is only useful for perf record with
LBR call stack.

Clear the header for perf stat.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/builtin-stat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index ec053dc1e35c..b5c8a5ab5e75 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1595,6 +1595,7 @@ static void init_features(struct perf_session *session)
 	perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
 	perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
 	perf_header__clear_feat(&session->header, HEADER_AUXTRACE);
+	perf_header__clear_feat(&session->header, HEADER_CPU_PMU_CAPS);
 }
 
 static int __cmd_record(int argc, const char **argv)
-- 
2.17.1