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https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable.git
synced 2025-09-28 17:40:21 +10:00
7129ea6e24
Starting with Rust 1.88.0 (expected 2025-06-26) [1][2], `rustc` may
introduce a new lint that catches unnecessary transmutes, e.g.:
error: unnecessary transmute
--> rust/uapi/uapi_generated.rs:23242:18
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23242 | unsafe { ::core::mem::transmute(self._bitfield_1.get(0usize, 1u8) as u8) }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `(self._bitfield_1.get(0usize, 1u8) as u8 == 1)`
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= note: `-D unnecessary-transmutes` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(unnecessary_transmutes)]`
There are a lot of them (at least 300), but luckily they are all in
`bindgen`-generated code.
Thus clean all up by allowing it there.
Since unknown lints trigger a lint itself in older compilers, do it
conditionally so that we can keep the `unknown_lints` lint enabled.
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/pull/136083 [1]
Link: https://github.com/rust-lang/rust/issues/136067 [2]
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250502140237.1659624-4-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
35 lines
981 B
Rust
35 lines
981 B
Rust
// SPDX-License-Identifier: GPL-2.0
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//! UAPI Bindings.
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//!
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//! Contains the bindings generated by `bindgen` for UAPI interfaces.
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//!
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//! This crate may be used directly by drivers that need to interact with
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//! userspace APIs.
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#![no_std]
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// See <https://github.com/rust-lang/rust-bindgen/issues/1651>.
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#![cfg_attr(test, allow(deref_nullptr))]
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#![cfg_attr(test, allow(unaligned_references))]
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#![cfg_attr(test, allow(unsafe_op_in_unsafe_fn))]
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#![allow(
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clippy::all,
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clippy::undocumented_unsafe_blocks,
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dead_code,
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missing_docs,
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non_camel_case_types,
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non_upper_case_globals,
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non_snake_case,
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improper_ctypes,
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unreachable_pub,
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unsafe_op_in_unsafe_fn
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)]
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#![cfg_attr(CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES, allow(unnecessary_transmutes))]
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// Manual definition of blocklisted types.
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type __kernel_size_t = usize;
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type __kernel_ssize_t = isize;
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type __kernel_ptrdiff_t = isize;
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include!(concat!(env!("OBJTREE"), "/rust/uapi/uapi_generated.rs"));
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