[PATCH] samples: rust: faux: replace `kernel::c_str!` with C-Strings

[PATCH] samples: rust: faux: replace `kernel::c_str!` with C-Strings

[Tamir Duberstein]

From: Tamir Duberstein <tamird@gmail.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@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
---
 samples/rust/rust_driver_faux.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/samples/rust/rust_driver_faux.rs b/samples/rust/rust_driver_faux.rs
index ecc9fd378cbd..23add3160693 100644
--- a/samples/rust/rust_driver_faux.rs
+++ b/samples/rust/rust_driver_faux.rs
@@ -2,7 +2,7 @@
 
 //! Rust faux device sample.
 
-use kernel::{c_str, faux, prelude::*, Module};
+use kernel::{faux, prelude::*, Module};
 
 module! {
     type: SampleModule,
@@ -20,7 +20,7 @@ impl Module for SampleModule {
     fn init(_module: &'static ThisModule) -> Result<Self> {
         pr_info!("Initialising Rust Faux Device Sample\n");
 
-        let reg = faux::Registration::new(c_str!("rust-faux-sample-device"), None)?;
+        let reg = faux::Registration::new(c"rust-faux-sample-device", None)?;
 
         dev_info!(reg.as_ref(), "Hello from faux device!\n");
 

---
base-commit: 185c81461ff4987d35fdfc4c8da46ae51ee5ada4
change-id: 20251223-cstr-faux-74c0dde845ea

Best regards,
--  
Tamir Duberstein <tamird@gmail.com>

Re: [PATCH] samples: rust: faux: replace `kernel::c_str!` with C-Strings

[Danilo Krummrich]

On Tue Dec 23, 2025 at 8:40 AM CET, Tamir Duberstein wrote:
> From: Tamir Duberstein <tamird@gmail.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@linuxfoundation.org>
> Reviewed-by: Alice Ryhl <aliceryhl@google.com>
> Reviewed-by: Benno Lossin <lossin@kernel.org>
> Signed-off-by: Tamir Duberstein <tamird@gmail.com>

Applied to driver-core-testing, thanks!

    [ Use kernel vertical import style. - Danilo ]

(Please use kernel vertical import style in the future when modifying imports.
Especially in this case, where the modified line is the only import of the whole
file. Thanks!)