[PATCH v3 03/16] rust: str: expose `str::Formatter::new` publicly.

[Andreas Hindborg <a.hindborg@xxxxxxxxxx>]

rnull is going to make use of `str::Formatter`, so expose it with public
visibility.

Signed-off-by: Andreas Hindborg <a.hindborg@xxxxxxxxxx>
---
 rust/kernel/str.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs
index 41af456a46c8..28a6179385fc 100644
--- a/rust/kernel/str.rs
+++ b/rust/kernel/str.rs
@@ -703,7 +703,7 @@ fn test_bstr_debug() -> Result {
 ///
 /// The memory region between `pos` (inclusive) and `end` (exclusive) is valid for writes if `pos`
 /// is less than `end`.
-pub(crate) struct RawFormatter {
+pub struct RawFormatter {
     // Use `usize` to use `saturating_*` functions.
     beg: usize,
     pos: usize,
@@ -795,7 +795,7 @@ fn write_str(&mut self, s: &str) -> fmt::Result {
 /// Allows formatting of [`fmt::Arguments`] into a raw buffer.
 ///
 /// Fails if callers attempt to write more than will fit in the buffer.
-pub(crate) struct Formatter<'a>(RawFormatter, PhantomData<&'a mut ()>);
+pub struct Formatter<'a>(RawFormatter, PhantomData<&'a mut ()>);
 
 impl Formatter<'_> {
     /// Creates a new instance of [`Formatter`] with the given buffer.
@@ -810,8 +810,7 @@ pub(crate) unsafe fn from_buffer(buf: *mut u8, len: usize) -> Self {
     }
 
     /// Create a new [`Self`] instance.
-    #[expect(dead_code)]
-    pub(crate) fn new<'a>(buffer: &'a mut [u8]) -> Formatter<'a> {
+    pub fn new<'a>(buffer: &'a mut [u8]) -> Formatter<'a> {
         // SAFETY: `buffer` is valid for writes for the entire length for
         // the lifetime of `Self`.
         unsafe { Formatter::from_buffer(buffer.as_mut_ptr(), buffer.len()) }

-- 
2.47.2