linux-kernel - [PATCH 1/7] rust: auxiliary: replace `kernel::c

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Message-Id: <20251222-cstr-driver-core-v1-1-1142a177d0fd@gmail.com>
Date: Mon, 22 Dec 2025 13:35:27 +0100
From: Tamir Duberstein <tamird@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Dave Ertman <david.m.ertman@...el.com>, Ira Weiny <ira.weiny@...el.com>, 
 Leon Romanovsky <leon@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
 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>, "Rafael J. Wysocki" <rafael@...nel.org>, 
 Daniel Almeida <daniel.almeida@...labora.com>
Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Tamir Duberstein <tamird@...il.com>
Subject: [PATCH 1/7] rust: auxiliary: replace `kernel::c_str!` with
 C-Strings

From: Tamir Duberstein <tamird@...il.com>

C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
Reviewed-by: Benno Lossin <lossin@...nel.org>
Acked-by: Danilo Krummrich <dakr@...nel.org>
Signed-off-by: Tamir Duberstein <tamird@...il.com>
---
 samples/rust/rust_driver_auxiliary.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs
index 5761ea314f44..1e4fb23cfcb0 100644
--- a/samples/rust/rust_driver_auxiliary.rs
+++ b/samples/rust/rust_driver_auxiliary.rs
@@ -5,7 +5,7 @@
 //! To make this driver probe, QEMU must be run with `-device pci-testdev`.

 use kernel::{
-    auxiliary, c_str,
+    auxiliary,
     device::{Bound, Core},
     devres::Devres,
     driver,
@@ -19,7 +19,7 @@
 use pin_init::PinInit;

 const MODULE_NAME: &CStr = <LocalModule as kernel::ModuleMetadata>::NAME;
-const AUXILIARY_NAME: &CStr = c_str!("auxiliary");
+const AUXILIARY_NAME: &CStr = c"auxiliary";

 struct AuxiliaryDriver;

-- 
2.52.0