linux-kernel - [PATCH] rust: prelude: re-export `core::mem::{align,size}_of{,

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Message-ID: <20250801161752.443431-1-ojeda@kernel.org>
Date: Fri,  1 Aug 2025 18:17:52 +0200
From: Miguel Ojeda <ojeda@...nel.org>
To: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>
Cc: Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Alexandre Courbot <acourbot@...dia.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev
Subject: [PATCH] rust: prelude: re-export `core::mem::{align,size}_of{,_val}`

Rust 1.80.0 added:

    align_of
    align_of_val
    size_of
    size_of_val

from `core::mem` to the prelude [1].

For similar reasons, and to minimize potential confusion when code may
work in later versions but not in our current minimum, add it to our
prelude too.

Link: https://github.com/rust-lang/rust/pull/123168 [1]
Link: https://lore.kernel.org/rust-for-linux/CANiq72kOLYR2A95o0ji2mDmEqOKh9e9_60zZKmgF=vZmsW6DRg@mail.gmail.com/ [2]
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
 rust/kernel/prelude.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/rust/kernel/prelude.rs b/rust/kernel/prelude.rs
index 25fe97aafd02..198d09a31449 100644
--- a/rust/kernel/prelude.rs
+++ b/rust/kernel/prelude.rs
@@ -12,7 +12,10 @@
 //! ```
 
 #[doc(no_inline)]
-pub use core::pin::Pin;
+pub use core::{
+    mem::{align_of, align_of_val, size_of, size_of_val},
+    pin::Pin,
+};
 
 pub use ::ffi::{
     c_char, c_int, c_long, c_longlong, c_schar, c_short, c_uchar, c_uint, c_ulong, c_ulonglong,

base-commit: dff64b072708ffef23c117fa1ee1ea59eb417807
-- 
2.50.1