From d6636ca11669c60925acb08c32d488c481ee1581 Mon Sep 17 00:00:00 2001
From: eZio Pan <eziopan@qq.com>
Date: Tue, 30 Jan 2024 16:54:06 +0800
Subject: [PATCH] minor fix

---
 embassy-stm32/src/dma/ringbuffer.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/embassy-stm32/src/dma/ringbuffer.rs b/embassy-stm32/src/dma/ringbuffer.rs
index c5b42060a..23f1d67d5 100644
--- a/embassy-stm32/src/dma/ringbuffer.rs
+++ b/embassy-stm32/src/dma/ringbuffer.rs
@@ -37,6 +37,7 @@ pub struct ReadableDmaRingBuffer<'a, W: Word> {
 }
 
 #[derive(Debug, PartialEq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct OverrunError;
 
 pub trait DmaCtrl {