From a2a780a3f26a6714c15013a09caec33a76ac9518 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Fri, 25 Aug 2023 15:06:02 +0800
Subject: [PATCH] firmware: fix compilation warning

---
 artiq/firmware/libboard_misoc/io_expander.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/firmware/libboard_misoc/io_expander.rs b/artiq/firmware/libboard_misoc/io_expander.rs
index e9f0a48b4..b86f4bd80 100644
--- a/artiq/firmware/libboard_misoc/io_expander.rs
+++ b/artiq/firmware/libboard_misoc/io_expander.rs
@@ -85,7 +85,7 @@ impl IoExpander {
     pub fn new() -> Result<Self, &'static str> {
         const VIRTUAL_LED_MAPPING: [(u8, u8, u8); 2] = [(0, 0, 5), (1, 0, 6)];
 
-        let mut io_expander = IoExpander {
+        let io_expander = IoExpander {
             busno: 0,
             port: 1,
             address: 0x40,