linux-kernel - [PATCH v1 12/14] perf stat: Remove duplicate cpus_map

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Date:   Tue, 28 Nov 2023 22:02:09 -0800
From:   Ian Rogers <irogers@...gle.com>
To:     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>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        James Clark <james.clark@....com>,
        Leo Yan <leo.yan@...aro.org>,
        John Garry <john.g.garry@...cle.com>,
        Will Deacon <will@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Darren Hart <dvhart@...radead.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        "André Almeida" <andrealmeid@...lia.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        K Prateek Nayak <kprateek.nayak@....com>,
        Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Kajol Jain <kjain@...ux.ibm.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        Alexandre Ghiti <alexghiti@...osinc.com>,
        Atish Patra <atishp@...osinc.com>,
        "Steinar H. Gunderson" <sesse@...gle.com>,
        Yang Jihong <yangjihong1@...wei.com>,
        Yang Li <yang.lee@...ux.alibaba.com>,
        Changbin Du <changbin.du@...wei.com>,
        Sandipan Das <sandipan.das@....com>,
        Ravi Bangoria <ravi.bangoria@....com>,
        Paran Lee <p4ranlee@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Huacai Chen <chenhuacai@...nel.org>,
        Yanteng Si <siyanteng@...ngson.cn>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        bpf@...r.kernel.org
Subject: [PATCH v1 12/14] perf stat: Remove duplicate cpus_map_matched function

Use libperf's perf_cpu_map__equal that performs the same function.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/builtin-stat.c | 22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f583027a0639..8e2f90b5c276 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -164,26 +164,6 @@ static struct perf_stat_config stat_config = {
 	.iostat_run		= false,
 };
 
-static bool cpus_map_matched(struct evsel *a, struct evsel *b)
-{
-	if (!a->core.cpus && !b->core.cpus)
-		return true;
-
-	if (!a->core.cpus || !b->core.cpus)
-		return false;
-
-	if (perf_cpu_map__nr(a->core.cpus) != perf_cpu_map__nr(b->core.cpus))
-		return false;
-
-	for (int i = 0; i < perf_cpu_map__nr(a->core.cpus); i++) {
-		if (perf_cpu_map__cpu(a->core.cpus, i).cpu !=
-		    perf_cpu_map__cpu(b->core.cpus, i).cpu)
-			return false;
-	}
-
-	return true;
-}
-
 static void evlist__check_cpu_maps(struct evlist *evlist)
 {
 	struct evsel *evsel, *warned_leader = NULL;
@@ -194,7 +174,7 @@ static void evlist__check_cpu_maps(struct evlist *evlist)
 		/* Check that leader matches cpus with each member. */
 		if (leader == evsel)
 			continue;
-		if (cpus_map_matched(leader, evsel))
+		if (perf_cpu_map__equal(leader->core.cpus, evsel->core.cpus))
 			continue;
 
 		/* If there's mismatch disable the group and warn user. */
-- 
2.43.0.rc1.413.gea7ed67945-goog