linux-kernel - [PATCH v5 06/17] rust: platform: refactor to use `&raw [const|mut]`

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Message-ID: <20250320020740.1631171-7-contact@antoniohickey.com>
Date: Wed, 19 Mar 2025 22:07:25 -0400
From: Antonio Hickey <contact@...oniohickey.com>
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 v5 06/17] rust: platform: refactor to use `&raw [const|mut]`

Replacing all occurrences of `addr_of_mut!(place)`
with `&raw mut place`.

This will allow us to reduce macro complexity, and improve consistency
with existing reference syntax as `&raw mut` is 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/platform.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 1297f5292ba9..344875ad7b82 100644
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -14,8 +14,6 @@
     ThisModule,
 };
 
-use core::ptr::addr_of_mut;
-
 /// An adapter for the registration of platform drivers.
 pub struct Adapter<T: Driver>(T);
 
@@ -55,7 +53,7 @@ unsafe fn unregister(pdrv: &Opaque<Self::RegType>) {
 impl<T: Driver + 'static> Adapter<T> {
     extern "C" fn probe_callback(pdev: *mut bindings::platform_device) -> kernel::ffi::c_int {
         // SAFETY: The platform bus only ever calls the probe callback with a valid `pdev`.
-        let dev = unsafe { device::Device::get_device(addr_of_mut!((*pdev).dev)) };
+        let dev = unsafe { device::Device::get_device(&raw mut (*pdev).dev) };
         // SAFETY: `dev` is guaranteed to be embedded in a valid `struct platform_device` by the
         // call above.
         let mut pdev = unsafe { Device::from_dev(dev) };