From a13f43a76a489e82eb1349148538712d45d96531 Mon Sep 17 00:00:00 2001
From: lengyijun <sjtu5140809011@gmail.com>
Date: Tue, 10 May 2022 14:54:51 +0000
Subject: [PATCH] add comment

---
 clippy_lints/src/borrow_deref_ref.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clippy_lints/src/borrow_deref_ref.rs b/clippy_lints/src/borrow_deref_ref.rs
index 7a95399f4253..219acd8a31d8 100644
--- a/clippy_lints/src/borrow_deref_ref.rs
+++ b/clippy_lints/src/borrow_deref_ref.rs
@@ -63,6 +63,7 @@ impl LateLintPass<'_> for BorrowDerefRef {
             then{
 
                 if let Some(parent_expr) = get_parent_expr(cx, e){
+                    // modification to `&mut &*x` is different from `&mut x`
                     if matches!(deref_target.kind, ExprKind::Path(..)
                                                 | ExprKind::Field(..)
                                                 | ExprKind::Index(..)