[F7][LIB] Resolve conflicts of UNUSED defs ST library

Equivalent to #7596 change
betaflight · Jul 29, 2019 · 94b1f8c · 94b1f8c
1 parent d3c0122
commit 94b1f8c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/main/STM32F7/Drivers/STM32F7xx_HAL_Driver/Inc/stm32f7xx_hal_def.h b/lib/main/STM32F7/Drivers/STM32F7xx_HAL_Driver/Inc/stm32f7xx_hal_def.h
@@ -55,7 +55,9 @@ typedef enum
 
 /* Exported macro ------------------------------------------------------------*/
 
-#define UNUSED(X) (void)X      /* To avoid gcc/g++ warnings */
+#if !defined(UNUSED)
+#define UNUSED(X) ((void)(X))      /* To avoid gcc/g++ warnings */
+#endif
 
 #define HAL_MAX_DELAY      0xFFFFFFFFU