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Starting with Rust 1.98.0 (expected 2026-08-20), Clippy is likely
introducing a new lint `clippy::map_or_identity` [1][2], which currently
triggers in a single case:
warning: expression can be simplified using `Result::unwrap_or()`
--> rust/kernel/cpufreq.rs:1326:60
|
1326 | PolicyCpu::from_cpu(cpu_id).map_or(0, |mut policy| T::get(&mut policy).map_or(0, |f| f))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_or_identity
= note: `-W clippy::map-or-identity` implied by `-W clippy::all`
= help: to override `-W clippy::all` add `#[allow(clippy::map_or_identity)]`
help: consider using `unwrap_or`
|
1326 - PolicyCpu::from_cpu(cpu_id).map_or(0, |mut policy| T::get(&mut policy).map_or(0, |f| f))
1326 + PolicyCpu::from_cpu(cpu_id).map_or(0, |mut policy| T::get(&mut policy).unwrap_or(0))
|
The suggestion is valid, thus clean it up.
Cc: stable@vger.kernel.org # Needed in 6.18.y and later.
Link: https://github.com/rust-lang/rust-clippy/issues/15801 [1]
Link: https://github.com/rust-lang/rust-clippy/pull/16052 [2]
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20260530095809.213611-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| .. | ||
| bindings | ||
| helpers | ||
| kernel | ||
| macros | ||
| pin-init | ||
| proc-macro2 | ||
| quote | ||
| syn | ||
| uapi | ||
| .gitignore | ||
| .kunitconfig | ||
| bindgen_parameters | ||
| build_error.rs | ||
| compiler_builtins.rs | ||
| exports.c | ||
| ffi.rs | ||
| Makefile | ||