2 files changed, 16 insertions, 14 deletions
diff --git a/tools/perf/util/hwmon_pmu.c b/tools/perf/util/hwmon_pmu.c
index 4acb9bb19b846..acd889b2462f6 100644
--- a/tools/perf/util/hwmon_pmu.c
+++ b/tools/perf/util/hwmon_pmu.c
@@ -108,20 +108,6 @@ struct hwmon_pmu {
 };
 
 /**
- * union hwmon_pmu_event_key: Key for hwmon_pmu->events as such each key
- * represents an event.
- *
- * Related hwmon files start <type><number> that this key represents.
- */
-union hwmon_pmu_event_key {
-	long type_and_num;
-	struct {
-		int num :16;
-		enum hwmon_type type :8;
-	};
-};
-
-/**
  * struct hwmon_pmu_event_value: Value in hwmon_pmu->events.
  *
  * Hwmon files are of the form <type><number>_<item> and may have a suffix
diff --git a/tools/perf/util/hwmon_pmu.h b/tools/perf/util/hwmon_pmu.h
index 882566846df46..b3329774d2b22 100644
--- a/tools/perf/util/hwmon_pmu.h
+++ b/tools/perf/util/hwmon_pmu.h
@@ -91,6 +91,22 @@ enum hwmon_item {
 	HWMON_ITEM__MAX,
 };
 
+/**
+ * union hwmon_pmu_event_key: Key for hwmon_pmu->events as such each key
+ * represents an event.
+ * union is exposed for testing to ensure problems are avoided on big
+ * endian machines.
+ *
+ * Related hwmon files start <type><number> that this key represents.
+ */
+union hwmon_pmu_event_key {
+	long type_and_num;
+	struct {
+		int num :16;
+		enum hwmon_type type :8;
+	};
+};
+
 bool perf_pmu__is_hwmon(const struct perf_pmu *pmu);
 bool evsel__is_hwmon(const struct evsel *evsel);