[PATCH v6 15/18] rust: platform: refactor to use `&raw mut`

From: Antonio Hickey
Date: Thu Apr 17 2025 - 21:45:58 EST


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@xxxxxxxxx>
Link: https://github.com/Rust-for-Linux/linux/issues/1148
Signed-off-by: Antonio Hickey <contact@xxxxxxxxxxxxxxxxx>
---
rust/kernel/platform.rs | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 4917cb34e2fe..f0f316b639e8 100644
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -14,11 +14,7 @@
ThisModule,
};

-use core::{
- marker::PhantomData,
- ops::Deref,
- ptr::{addr_of_mut, NonNull},
-};
+use core::{marker::PhantomData, ops::Deref, ptr::NonNull};

/// An adapter for the registration of platform drivers.
pub struct Adapter<T: Driver>(T);
@@ -227,7 +223,7 @@ impl AsRef<device::Device> for Device {
fn as_ref(&self) -> &device::Device {
// SAFETY: By the type invariant of `Self`, `self.as_raw()` is a pointer to a valid
// `struct platform_device`.
- let dev = unsafe { addr_of_mut!((*self.as_raw()).dev) };
+ let dev = unsafe { &raw mut (*self.as_raw()).dev };

// SAFETY: `dev` points to a valid `struct device`.
unsafe { device::Device::as_ref(dev) }
--
2.48.1