6.12-stable review patch. If anyone has any objections, please let me know.
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From: Miguel Ojeda ojeda@kernel.org
commit a39f3087092716f2bd531d6fdc20403c3dc2a879 upstream.
Starting with Rust 1.87.0 (expected 2025-05-15) [1], Clippy may expand the `ptr_eq` lint, e.g.:
error: use `core::ptr::eq` when comparing raw pointers --> rust/kernel/list.rs:438:12 | 438 | if self.first == item { | ^^^^^^^^^^^^^^^^^^ help: try: `core::ptr::eq(self.first, item)` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_eq = note: `-D clippy::ptr-eq` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::ptr_eq)]`
It is expected that a PR to relax the lint will be backported [2] by the time Rust 1.87.0 releases, since the lint was considered too eager (at least by default) [3].
Thus allow the lint temporarily just in case.
Cc: stable@vger.kernel.org # Needed in 6.12.y and later (Rust is pinned in older LTSs). Link: https://github.com/rust-lang/rust-clippy/pull/14339 [1] Link: https://github.com/rust-lang/rust-clippy/pull/14526 [2] Link: https://github.com/rust-lang/rust-clippy/issues/14525 [3] Link: https://lore.kernel.org/r/20250502140237.1659624-3-ojeda@kernel.org [ Converted to `allow`s since backport was confirmed. - Miguel ] Signed-off-by: Miguel Ojeda ojeda@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- rust/kernel/alloc/kvec.rs | 3 +++ rust/kernel/list.rs | 3 +++ 2 files changed, 6 insertions(+)
--- a/rust/kernel/alloc/kvec.rs +++ b/rust/kernel/alloc/kvec.rs @@ -2,6 +2,9 @@
//! Implementation of [`Vec`].
+// May not be needed in Rust 1.87.0 (pending beta backport). +#![allow(clippy::ptr_eq)] + use super::{ allocator::{KVmalloc, Kmalloc, Vmalloc}, layout::ArrayLayout, --- a/rust/kernel/list.rs +++ b/rust/kernel/list.rs @@ -4,6 +4,9 @@
//! A linked list implementation.
+// May not be needed in Rust 1.87.0 (pending beta backport). +#![allow(clippy::ptr_eq)] + use crate::init::PinInit; use crate::sync::ArcBorrow; use crate::types::Opaque;