linux-kernel - [PATCH v6 10/18] rust: sync: arc: refactor to use `&raw const`

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250418014143.888022-11-contact@antoniohickey.com>
Date: Thu, 17 Apr 2025 21:41:31 -0400
From: Antonio Hickey <contact@...oniohickey.com>
To: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>
Cc: Antonio Hickey <contact@...oniohickey.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v6 10/18] rust: sync: arc: refactor to use `&raw const`

Replacing all occurrences of `addr_of!(place)` with
`&raw const place`.

This will allow us to reduce macro complexity, and improve consistency
with existing reference syntax as `&raw const` is similar to `&` making
it fit more naturally with other existing code.

Suggested-by: Benno Lossin <benno.lossin@...ton.me>
Link: https://github.com/Rust-for-Linux/linux/issues/1148
Signed-off-by: Antonio Hickey <contact@...oniohickey.com>
---
 rust/kernel/sync/arc.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust/kernel/sync/arc.rs b/rust/kernel/sync/arc.rs
index 8484c814609a..fea85e5342a0 100644
--- a/rust/kernel/sync/arc.rs
+++ b/rust/kernel/sync/arc.rs
@@ -263,7 +263,7 @@ pub fn into_raw(self) -> *const T {
         let ptr = self.ptr.as_ptr();
         core::mem::forget(self);
         // SAFETY: The pointer is valid.
-        unsafe { core::ptr::addr_of!((*ptr).data) }
+        unsafe { &raw const (*ptr).data }
     }
 
     /// Return a raw pointer to the data in this arc.
@@ -272,7 +272,7 @@ pub fn as_ptr(this: &Self) -> *const T {
 
         // SAFETY: As `ptr` points to a valid allocation of type `ArcInner`,
         // field projection to `data`is within bounds of the allocation.
-        unsafe { core::ptr::addr_of!((*ptr).data) }
+        unsafe { &raw const (*ptr).data }
     }
 
     /// Recreates an [`Arc`] instance previously deconstructed via [`Arc::into_raw`].
-- 
2.48.1