[PATCH v2 4/8] rust: device: use `kernel::{fmt,prelude::fmt!}`

From: Tamir Duberstein
Date: Sat Jul 19 2025 - 18:43:31 EST


Reduce coupling to implementation details of the formatting machinery by
avoiding direct use for `core`'s formatting traits and macros.

Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Reviewed-by: Benno Lossin <lossin@xxxxxxxxxx>
Acked-by: Danilo Krummrich <dakr@xxxxxxxxxx>
Signed-off-by: Tamir Duberstein <tamird@xxxxxxxxx>
---
rust/kernel/device.rs | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs
index 5c946af3a4d5..9e9ecdb1beec 100644
--- a/rust/kernel/device.rs
+++ b/rust/kernel/device.rs
@@ -5,11 +5,11 @@
//! C header: [`include/linux/device.h`](srctree/include/linux/device.h)

use crate::{
- bindings,
+ bindings, fmt,
str::CStr,
types::{ARef, Opaque},
};
-use core::{fmt, marker::PhantomData, ptr};
+use core::{marker::PhantomData, ptr};

#[cfg(CONFIG_PRINTK)]
use crate::c_str;
@@ -345,7 +345,7 @@ macro_rules! impl_device_context_into_aref {
macro_rules! dev_printk {
($method:ident, $dev:expr, $($f:tt)*) => {
{
- ($dev).$method(::core::format_args!($($f)*));
+ ($dev).$method($crate::prelude::fmt!($($f)*));
}
}
}

--
2.50.1