perf test: Factor out pmu-events alias comparison

mainline inclusion
from mainline-v5.15-rc1
commit e386acd7
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I63VF5
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e386acd79017952ba032aad60e8307befc5aa378

--------------------------------------------------------------------------

Factor out alias test which will be used in multiple places.

Also test missing fields.
Signed-off-by: NJohn Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linuxarm@huawei.com
Link: https //lore.kernel.org/r/1627566986-30605-5-git-send-email-john.garry@huawei.com
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

tools/perf/tests/pmu-events.c

@@ -230,6 +230,60 @@ static int compare_pmu_events(struct pmu_event *e1, const struct pmu_event *e2)
 	return 0;
 }
 
+static int compare_alias_to_test_event(struct perf_pmu_alias *alias,
+				struct perf_pmu_test_event const *test_event,
+				char const *pmu_name)
+{
+	struct pmu_event const *event = &test_event->event;
+
+	/* An alias was found, ensure everything is in order */
+	if (!is_same(alias->name, event->name)) {
+		pr_debug("testing aliases PMU %s: mismatched name, %s vs %s\n",
+			  pmu_name, alias->name, event->name);
+		return -1;
+	}
+
+	if (!is_same(alias->desc, event->desc)) {
+		pr_debug("testing aliases PMU %s: mismatched desc, %s vs %s\n",
+			  pmu_name, alias->desc, event->desc);
+		return -1;
+	}
+
+	if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+		pr_debug("testing aliases PMU %s: mismatched long_desc, %s vs %s\n",
+			  pmu_name, alias->long_desc,
+			  test_event->alias_long_desc);
+		return -1;
+	}
+
+	if (!is_same(alias->topic, event->topic)) {
+		pr_debug("testing aliases PMU %s: mismatched topic, %s vs %s\n",
+			  pmu_name, alias->topic, event->topic);
+		return -1;
+	}
+
+	if (!is_same(alias->str, test_event->alias_str)) {
+		pr_debug("testing aliases PMU %s: mismatched str, %s vs %s\n",
+			  pmu_name, alias->str, test_event->alias_str);
+		return -1;
+	}
+
+	if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+		pr_debug("testing aliases PMU %s: mismatched long desc, %s vs %s\n",
+			  pmu_name, alias->str, test_event->alias_long_desc);
+		return -1;
+	}
+
+
+	if (!is_same(alias->pmu_name, test_event->event.pmu)) {
+		pr_debug("testing aliases PMU %s: mismatched pmu_name, %s vs %s\n",
+			  pmu_name, alias->pmu_name, test_event->event.pmu);
+		return -1;
+	}
+
+	return 0;
+}
+
 /* Verify generated events from pmu-events.c are as expected */
 static int test_pmu_event_table(void)
 {
@@ -347,31 +401,7 @@ static int __test__pmu_event_aliases(char *pmu_name, int *count)
 			break;
 		}
 
-		if (!is_same(alias->desc, event->desc)) {
-			pr_debug2("testing aliases PMU %s: mismatched desc, %s vs %s\n",
-				  pmu_name, alias->desc, event->desc);
-			res = -1;
-			break;
-		}
-
-		if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
-			pr_debug2("testing aliases PMU %s: mismatched long_desc, %s vs %s\n",
-				  pmu_name, alias->long_desc,
-				  test_event->alias_long_desc);
-			res = -1;
-			break;
-		}
-
-		if (!is_same(alias->str, test_event->alias_str)) {
-			pr_debug2("testing aliases PMU %s: mismatched str, %s vs %s\n",
-				  pmu_name, alias->str, test_event->alias_str);
-			res = -1;
-			break;
-		}
-
-		if (!is_same(alias->topic, event->topic)) {
-			pr_debug2("testing aliases PMU %s: mismatched topic, %s vs %s\n",
-				  pmu_name, alias->topic, event->topic);
+		if (compare_alias_to_test_event(alias, test_event, pmu_name)) {
 			res = -1;
 			break;
 		}