[PATCH v4 13/35] perf evlist: Remove evlist__warn_hybrid_group

From: Ian Rogers <irogers@google.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
	Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
	John Garry <john.g.garry@oracle.com>,
	Will Deacon <will@kernel.org>, James Clark <james.clark@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kajol Jain <kjain@linux.ibm.com>,
	Jing Zhang <renyu.zj@linux.alibaba.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Zhengjun Xing <zhengjun.xing@linux.intel.com>,
	Ravi Bangoria <ravi.bangoria@amd.com>,
	Madhavan Srinivasan <maddy@linux.ibm.com>,
	Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
	Ming Wang <wangming01@loongson.cn>,
	Huacai Chen <chenhuacai@kernel.org>,
	Sandipan Das <sandipan.das@amd.com>,
	Dmitrii Dolgov <9erthalion6@gmail.com>,
	Sean Christopherson <seanjc@google.com>,
	Ali Saidi <alisaidi@amazon.com>, Rob Herring <robh@kernel.org>,
	Thomas Richter <tmricht@linux.ibm.com>,
	Kang Minchul <tegongkang@gmail.com>,
	linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
	linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org
Subject: [PATCH v4 13/35] perf evlist: Remove evlist__warn_hybrid_group
Date: Fri, 26 May 2023 14:53:48 -0700	[thread overview]
Message-ID: <20230526215410.2435674-14-irogers@google.com> (raw)
In-Reply-To: <20230526215410.2435674-1-irogers@google.com>

Parse events now corrects PMU groups in
parse_events__sort_events_and_fix_groups and so this warning is no
longer possible.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
---
 tools/perf/builtin-stat.c       |  3 ---
 tools/perf/util/evlist-hybrid.c | 32 --------------------------------
 tools/perf/util/evlist-hybrid.h |  1 -
 3 files changed, 36 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 04c9289e6ceb..cc4d96de1851 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -187,9 +187,6 @@ static void evlist__check_cpu_maps(struct evlist *evlist)
 {
 	struct evsel *evsel, *warned_leader = NULL;
 
-	if (evlist__has_hybrid(evlist))
-		evlist__warn_hybrid_group(evlist);
-
 	evlist__for_each_entry(evlist, evsel) {
 		struct evsel *leader = evsel__leader(evsel);
 
diff --git a/tools/perf/util/evlist-hybrid.c b/tools/perf/util/evlist-hybrid.c
index db3f5fbdebe1..0f59c80f27b2 100644
--- a/tools/perf/util/evlist-hybrid.c
+++ b/tools/perf/util/evlist-hybrid.c
@@ -41,38 +41,6 @@ int evlist__add_default_hybrid(struct evlist *evlist, bool precise)
 	return 0;
 }
 
-static bool group_hybrid_conflict(struct evsel *leader)
-{
-	struct evsel *pos, *prev = NULL;
-
-	for_each_group_evsel(pos, leader) {
-		if (!evsel__is_hybrid(pos))
-			continue;
-
-		if (prev && strcmp(prev->pmu_name, pos->pmu_name))
-			return true;
-
-		prev = pos;
-	}
-
-	return false;
-}
-
-void evlist__warn_hybrid_group(struct evlist *evlist)
-{
-	struct evsel *evsel;
-
-	evlist__for_each_entry(evlist, evsel) {
-		if (evsel__is_group_leader(evsel) &&
-		    evsel->core.nr_members > 1 &&
-		    group_hybrid_conflict(evsel)) {
-			pr_warning("WARNING: events in group from "
-				   "different hybrid PMUs!\n");
-			return;
-		}
-	}
-}
-
 bool evlist__has_hybrid(struct evlist *evlist)
 {
 	struct evsel *evsel;
diff --git a/tools/perf/util/evlist-hybrid.h b/tools/perf/util/evlist-hybrid.h
index 19f74b4c340a..4b000eda6626 100644
--- a/tools/perf/util/evlist-hybrid.h
+++ b/tools/perf/util/evlist-hybrid.h
@@ -8,7 +8,6 @@
 #include <unistd.h>
 
 int evlist__add_default_hybrid(struct evlist *evlist, bool precise);
-void evlist__warn_hybrid_group(struct evlist *evlist);
 bool evlist__has_hybrid(struct evlist *evlist);
 
 #endif /* __PERF_EVLIST_HYBRID_H */
-- 
2.41.0.rc0.172.g3f132b7071-goog

