rust: device: use `kernel::{fmt,prelude::fmt!}`

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@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>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs
index 5902b3714a166202637f20269c6a6896954b8ca1..303af0ef9bf73dacab6f1a095640120db77516d5 100644 (file)
--- a/rust/kernel/device.rs
+++ b/rust/kernel/device.rs
@@ -5,10 +5,10 @@
 //! C header: [`include/linux/device.h`](srctree/include/linux/device.h)
 
 use crate::{
-    bindings,
+    bindings, fmt,
     types::{ARef, ForeignOwnable, Opaque},
 };
-use core::{fmt, marker::PhantomData, ptr};
+use core::{marker::PhantomData, ptr};
 
 #[cfg(CONFIG_PRINTK)]
 use crate::c_str;
@@ -595,7 +595,7 @@ 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)*));
         }
     }
 }