On 12/10/2024 09:52, Thomas Böhler wrote:
Clippy complains about a non-minimal boolean expression with
`nonminimal_bool`:
error: this boolean expression can be simplified
--> drivers/gpu/drm/drm_panic_qr.rs:722:9
|
722 | (x < 8 && y < 8) || (x < 8 && y >= end) || (x >= end && y < 8)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
= note: `-D clippy::nonminimal-bool` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::nonminimal_bool)]`
help: try
|
722 | !(x >= 8 || y >= 8 && y < end) || (x >= end && y < 8)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
722 | (y >= end || y < 8) && x < 8 || (x >= end && y < 8)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
While this can be useful in a lot of cases, it isn't here because the
line expresses clearly what the intention is. Simplifying the expression
means losing clarity, so opt-out of this lint for the offending line.
Thanks, I also prefer to keep the non-minimal boolean.
With the suggestions from Alice Ryhl to not introduce a return, and use
expect:
Reviewed-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Reported-by: Miguel Ojeda <ojeda@xxxxxxxxxx>
Closes: https://github.com/Rust-for-Linux/linux/issues/1123
Signed-off-by: Thomas Böhler <witcher@xxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_panic_qr.rs | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs
index 58c46f366f76..226107c02679 100644
--- a/drivers/gpu/drm/drm_panic_qr.rs
+++ b/drivers/gpu/drm/drm_panic_qr.rs
@@ -719,7 +719,8 @@ fn draw_finders(&mut self) {
fn is_finder(&self, x: u8, y: u8) -> bool {
let end = self.width - 8;
- (x < 8 && y < 8) || (x < 8 && y >= end) || (x >= end && y < 8)
+ #[allow(clippy::nonminimal_bool)]
+ return (x < 8 && y < 8) || (x < 8 && y >= end) || (x >= end && y < 8);
}
// Alignment pattern: 5x5 squares in a grid.
