[WIP] test Clang build against regulator.h

Use unnamed union/struct in struct regulator to overcome Clang being very strict as built with on -Wgnu-variable-sized-type-not-at-end. Details at OP-TEE#6486. Signed-off-by: Etienne Carriere <[email protected]>
etienne-lms · Nov 23, 2023 · a930c38 · a930c38
1 parent f3d285d
commit a930c38
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/core/include/drivers/regulator.h b/core/include/drivers/regulator.h
@@ -108,8 +108,13 @@ struct regulator {
 	unsigned int refcount;
 	struct mutex lock;	/* Concurrent access protection */
 	struct voltages_fallback {
-		struct regulator_voltages desc;
-		int levels[3];
+		union {
+			struct regulator_voltages desc;
+			struct {
+				uint8_t hdr[sizeof(struct regulator_voltages)];
+				int levels[3];
+			};
+		};
 	} voltages_fallback;
 	size_t levels_count_fallback;
 	SLIST_ENTRY(regulator) link;