From 2d131c3e9c486ea7e8346e6a84237db6bca156a4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thomas=20B=C3=B6hler?= Date: Sat, 12 Oct 2024 09:52:45 +0200 Subject: [PATCH] drm/panic: remove unnecessary borrow in alignment_pattern MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The function `alignment_pattern` returns a static reference to a `u8` slice. The borrow of the returned element in `ALIGNMENT_PATTERNS` is already a reference as defined in the array definition above so this borrow is unnecessary and removed by the compiler. Clippy notes this in `needless_borrow`: error: this expression creates a reference which is immediately dereferenced by the compiler --> drivers/gpu/drm/drm_panic_qr.rs:245:9 | 245 | &ALIGNMENT_PATTERNS[self.0 - 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `ALIGNMENT_PATTERNS[self.0 - 1]` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow = note: `-D clippy::needless-borrow` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::needless_borrow)]` Remove the unnecessary borrow. Reported-by: Miguel Ojeda Closes: https://github.com/Rust-for-Linux/linux/issues/1123 Signed-off-by: Thomas Böhler --- drivers/gpu/drm/drm_panic_qr.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs index 76decf49e67851..7adfaa3d622220 100644 --- a/drivers/gpu/drm/drm_panic_qr.rs +++ b/drivers/gpu/drm/drm_panic_qr.rs @@ -239,7 +239,7 @@ impl Version { } fn alignment_pattern(&self) -> &'static [u8] { - &ALIGNMENT_PATTERNS[self.0 - 1] + ALIGNMENT_PATTERNS[self.0 - 1] } fn poly(&self) -> &'static [u8] {