From f80bbec28ff790d15481a29583c9b778bf0cc40e Mon Sep 17 00:00:00 2001
From: Daniel Sedlak <daniel@sedlak.dev>
Date: Thu, 18 Jan 2024 11:59:22 +0100
Subject: [PATCH] io: simplify check for empty slice (#6293)

---
 tokio/src/io/util/chain.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tokio/src/io/util/chain.rs b/tokio/src/io/util/chain.rs
index 84f37fc7d46..f96f42f4a99 100644
--- a/tokio/src/io/util/chain.rs
+++ b/tokio/src/io/util/chain.rs
@@ -114,7 +114,7 @@ where
 
         if !*me.done_first {
             match ready!(me.first.poll_fill_buf(cx)?) {
-                buf if buf.is_empty() => {
+                [] => {
                     *me.done_first = true;
                 }
                 buf => return Poll::Ready(Ok(buf)),