linux-kernel - [PATCH v4 27/35] perf x86 mem: minor refactor to is_mem_loads_aux

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Date:   Fri, 26 May 2023 14:54:02 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        John Garry <john.g.garry@...cle.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        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@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kajol Jain <kjain@...ux.ibm.com>,
        Jing Zhang <renyu.zj@...ux.alibaba.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        Ravi Bangoria <ravi.bangoria@....com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        Ming Wang <wangming01@...ngson.cn>,
        Huacai Chen <chenhuacai@...nel.org>,
        Sandipan Das <sandipan.das@....com>,
        Dmitrii Dolgov <9erthalion6@...il.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Ali Saidi <alisaidi@...zon.com>, Rob Herring <robh@...nel.org>,
        Thomas Richter <tmricht@...ux.ibm.com>,
        Kang Minchul <tegongkang@...il.com>,
        linux-kernel@...r.kernel.org, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org
Subject: [PATCH v4 27/35] perf x86 mem: minor refactor to is_mem_loads_aux_event

Find the PMU and then the event off of it.

Signed-off-by: Ian Rogers <irogers@...gle.com>
Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/arch/x86/util/mem-events.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c
index f683ac702247..02d65e446f46 100644
--- a/tools/perf/arch/x86/util/mem-events.c
+++ b/tools/perf/arch/x86/util/mem-events.c
@@ -55,13 +55,13 @@ struct perf_mem_event *perf_mem_events__ptr(int i)
 
 bool is_mem_loads_aux_event(struct evsel *leader)
 {
-	if (perf_pmu__find("cpu")) {
-		if (!pmu_have_event("cpu", "mem-loads-aux"))
-			return false;
-	} else if (perf_pmu__find("cpu_core")) {
-		if (!pmu_have_event("cpu_core", "mem-loads-aux"))
-			return false;
-	}
+	struct perf_pmu *pmu = perf_pmu__find("cpu");
+
+	if (!pmu)
+		pmu = perf_pmu__find("cpu_core");
+
+	if (pmu && !pmu_have_event(pmu->name, "mem-loads-aux"))
+		return false;
 
 	return leader->core.attr.config == MEM_LOADS_AUX;
 }
-- 
2.41.0.rc0.172.g3f132b7071-goog