`RawWriter` is now dead code, so remove it.
Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Reviewed-by: Daniel Almeida <daniel.almeida@xxxxxxxxxxxxx>
Signed-off-by: Andreas Hindborg <a.hindborg@xxxxxxxxxx>
---
rust/kernel/block/mq.rs | 1 -
rust/kernel/block/mq/raw_writer.rs | 56 --------------------------------------
2 files changed, 57 deletions(-)
diff --git a/rust/kernel/block/mq.rs b/rust/kernel/block/mq.rs
index 831445d37181..98fa0d6bc8f7 100644
--- a/rust/kernel/block/mq.rs
+++ b/rust/kernel/block/mq.rs
@@ -89,7 +89,6 @@
pub mod gen_disk;
mod operations;
-mod raw_writer;
mod request;
mod tag_set;
diff --git a/rust/kernel/block/mq/raw_writer.rs b/rust/kernel/block/mq/raw_writer.rs
deleted file mode 100644
index 0aef55703e71..000000000000
--- a/rust/kernel/block/mq/raw_writer.rs
+++ /dev/null
@@ -1,56 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-use core::fmt::{self, Write};
-
-use crate::error::Result;
-use crate::prelude::EINVAL;
-
-/// A mutable reference to a byte buffer where a string can be written into.
-///
-/// # Invariants
-///
-/// `buffer` is always null terminated.
-pub(crate) struct RawWriter<'a> {
- buffer: &'a mut [u8],
- pos: usize,
-}
-
-impl<'a> RawWriter<'a> {
- /// Create a new `RawWriter` instance.
- fn new(buffer: &'a mut [u8]) -> Result<RawWriter<'a>> {
- *(buffer.last_mut().ok_or(EINVAL)?) = 0;
-
- // INVARIANT: We null terminated the buffer above.
- Ok(Self { buffer, pos: 0 })
- }
-
- #[expect(dead_code)]
- pub(crate) fn from_array<const N: usize>(
- a: &'a mut [crate::ffi::c_char; N],
- ) -> Result<RawWriter<'a>> {
- Self::new(
- // SAFETY: the buffer of `a` is valid for read and write as `u8` for
- // at least `N` bytes.
- unsafe { core::slice::from_raw_parts_mut(a.as_mut_ptr().cast::<u8>(), N) },
- )
- }
-}
-
-impl Write for RawWriter<'_> {
- fn write_str(&mut self, s: &str) -> fmt::Result {
- let bytes = s.as_bytes();
- let len = bytes.len();
-
- // We do not want to overwrite our null terminator
- if self.pos + len > self.buffer.len() - 1 {
- return Err(fmt::Error);
- }
-
- // INVARIANT: We are not overwriting the last byte
- self.buffer[self.pos..self.pos + len].copy_from_slice(bytes);
-
- self.pos += len;
-
- Ok(())
- }
-}
--
2.47.2
