linux-kernel - [PATCH v3 1/3] rust: enable `raw_ref

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Message-ID: <0100019597091f92-cb55b6cd-4d06-4d14-8d9c-1a1314949a00-000000@email.amazonses.com>
Date: Fri, 14 Mar 2025 23:41:52 +0000
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>, 
	Benno Lossin <y86-dev@...tonmai.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/3] rust: enable `raw_ref_op` feature

Since Rust 1.82.0 the `raw_ref_op` feature is stable.

By enabling this feature we can use `&raw place` and `&raw mut place`
instead of using `addr_of!(place)` and `addr_of_mut!(place)` macros.

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

Suggested-by: Benno Lossin <y86-dev@...tonmai.com>
Link: https://github.com/Rust-for-Linux/linux/issues/1148
Signed-off-by: Antonio Hickey <contact@...oniohickey.com>
---
 rust/kernel/lib.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
index 398242f92a96..1d078f69bb19 100644
--- a/rust/kernel/lib.rs
+++ b/rust/kernel/lib.rs
@@ -19,6 +19,8 @@
 #![cfg_attr(not(CONFIG_RUSTC_HAS_COERCE_POINTEE), feature(unsize))]
 #![feature(inline_const)]
 #![feature(lint_reasons)]
+// Stable in Rust 1.82
+#![feature(raw_ref_op)]
 // Stable in Rust 1.83
 #![feature(const_maybe_uninit_as_mut_ptr)]
 #![feature(const_mut_refs)]
-- 
2.48.1