[PATCH 2/6] rust: kernel: add `fmt` module

[Tamir Duberstein <tamird@gmail.com>]

`kernel::fmt` is a facade over `core::fmt` that can be used downstream,
allowing future changes to the formatting machinery to be contained
within the kernel crate without downstream code needing to be modified.

Signed-off-by: Tamir Duberstein <tamird@gmail.com>
---
 rust/kernel/fmt.rs | 7 +++++++
 rust/kernel/lib.rs | 1 +
 2 files changed, 8 insertions(+)

diff --git a/rust/kernel/fmt.rs b/rust/kernel/fmt.rs
new file mode 100644
index 000000000000..0306e8388968
--- /dev/null
+++ b/rust/kernel/fmt.rs
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! Formatting utilities.
+//!
+//! This module is intended to be used in place of `core::fmt` in kernel code.
+
+pub use core::fmt::{Arguments, Debug, Display, Error, Formatter, Result, Write};
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
index 6b4774b2b1c3..aadcfaa5c759 100644
--- a/rust/kernel/lib.rs
+++ b/rust/kernel/lib.rs
@@ -77,6 +77,7 @@
 pub mod faux;
 #[cfg(CONFIG_RUST_FW_LOADER_ABSTRACTIONS)]
 pub mod firmware;
+pub mod fmt;
 pub mod fs;
 pub mod init;
 pub mod io;

-- 
2.50.0