rust: seq_file: 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>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

diff --git a/rust/kernel/seq_file.rs b/rust/kernel/seq_file.rs
index 8f199b1..59fbfc2 100644 (file)
--- a/rust/kernel/seq_file.rs
+++ b/rust/kernel/seq_file.rs
@@ -4,7 +4,7 @@
 //!
 //! C header: [`include/linux/seq_file.h`](srctree/include/linux/seq_file.h)
 
-use crate::{bindings, c_str, types::NotThreadSafe, types::Opaque};
+use crate::{bindings, c_str, fmt, types::NotThreadSafe, types::Opaque};
 
 /// A utility for generating the contents of a seq file.
 #[repr(transparent)]
@@ -31,7 +31,7 @@ impl SeqFile {
 
     /// Used by the [`seq_print`] macro.
     #[inline]
-    pub fn call_printf(&self, args: core::fmt::Arguments<'_>) {
+    pub fn call_printf(&self, args: fmt::Arguments<'_>) {
         // SAFETY: Passing a void pointer to `Arguments` is valid for `%pA`.
         unsafe {
             bindings::seq_printf(
@@ -47,7 +47,7 @@ impl SeqFile {
 #[macro_export]
 macro_rules! seq_print {
     ($m:expr, $($arg:tt)+) => (
-        $m.call_printf(format_args!($($arg)+))
+        $m.call_printf($crate::prelude::fmt!($($arg)+))
     );
 }
 pub use seq_print;