linux-kernel - [PATCH v4 05/16] rust: faux: refactor to use `&raw [const|mut]`

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Message-ID: <20250316061429.817126-6-contact@antoniohickey.com>
Date: Sun, 16 Mar 2025 02:14:14 -0400
From: Antonio Hickey <contact@...e-forge.io>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	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>
Cc: Antonio Hickey <contact@...oniohickey.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 05/16] rust: faux: refactor to use `&raw [const|mut]`

Replacing all occurrences of `addr_of!(place)` and `addr_of_mut!(place)`
with `&raw const place` and `&raw mut place` respectively.

This will allow us to reduce macro complexity, and improve consistency
with existing reference syntax as `&raw const`, `&raw mut` are similar
to `&`, `&mut` 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/faux.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust/kernel/faux.rs b/rust/kernel/faux.rs
index 5acc0c02d451..11e56fcbb6ed 100644
--- a/rust/kernel/faux.rs
+++ b/rust/kernel/faux.rs
@@ -7,7 +7,7 @@
 //! C header: [`include/linux/device/faux.h`]
 
 use crate::{bindings, device, error::code::*, prelude::*};
-use core::ptr::{addr_of_mut, null, null_mut, NonNull};
+use core::ptr::{null, null_mut, NonNull};
 
 /// The registration of a faux device.
 ///
@@ -45,7 +45,7 @@ impl AsRef<device::Device> for Registration {
     fn as_ref(&self) -> &device::Device {
         // SAFETY: The underlying `device` in `faux_device` is guaranteed by the C API to be
         // a valid initialized `device`.
-        unsafe { device::Device::as_ref(addr_of_mut!((*self.as_raw()).dev)) }
+        unsafe { device::Device::as_ref(&raw mut (*self.as_raw()).dev) }
     }
 }
 
-- 
2.48.1