silence compiler warning

diff --git a/watch-library/hardware/hal/src/hal_usart_sync.c b/watch-library/hardware/hal/src/hal_usart_sync.c
index ab99c1d16633343dda593e5a2c2776d6626b925c..c7aaf92043b3f84d17a4c6175bb92cb9f6996bad 100755 (executable)
--- a/watch-library/hardware/hal/src/hal_usart_sync.c
+++ b/watch-library/hardware/hal/src/hal_usart_sync.c
@@ -48,6 +48,7 @@ static int32_t usart_sync_read(struct io_descriptor *const io_descr, uint8_t *co
  */
 int32_t usart_sync_init(struct usart_sync_descriptor *const descr, void *const hw, void *const func)
 {
+       (void)func;
        int32_t init_status;
        ASSERT(descr && hw);
        init_status = _usart_sync_init(&descr->device, hw);