linux-kernel - [PATCH] rust: allow `clippy::disallowed

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Message-ID: <20251117080714.876978-1-ojeda@kernel.org>
Date: Mon, 17 Nov 2025 09:07:13 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: Benno Lossin <lossin@...nel.org>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>
Cc: rust-for-linux@...r.kernel.org,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Rae Moar <raemoar63@...il.com>,
	linux-kselftest@...r.kernel.org,
	kunit-dev@...glegroups.com,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev
Subject: [PATCH] rust: allow `clippy::disallowed_names` for doctests

Examples (i.e. doctests) may want to use names such as `foo`, thus the
`clippy::disallowed_names` lint gets in the way.

Thus allow it for all doctests.

In addition, remove it from the existing `expect`s we have in a few
doctests.

This does not mean that we should stop trying to find good names for
our examples, though.

Suggested-by: Alice Ryhl <aliceryhl@...gle.com>
Link: https://lore.kernel.org/rust-for-linux/aRHSLChi5HYXW4-9@google.com/
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
 rust/kernel/init.rs         | 3 +--
 rust/kernel/types.rs        | 1 -
 scripts/rustdoc_test_gen.rs | 2 +-
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/rust/kernel/init.rs b/rust/kernel/init.rs
index e476d81c1a27..899b9a962762 100644
--- a/rust/kernel/init.rs
+++ b/rust/kernel/init.rs
@@ -30,7 +30,7 @@
 //! ## General Examples
 //!
 //! ```rust
-//! # #![expect(clippy::disallowed_names, clippy::undocumented_unsafe_blocks)]
+//! # #![expect(clippy::undocumented_unsafe_blocks)]
 //! use kernel::types::Opaque;
 //! use pin_init::pin_init_from_closure;
 //!
@@ -67,7 +67,6 @@
 //! ```
 //!
 //! ```rust
-//! # #![expect(clippy::disallowed_names)]
 //! use kernel::{prelude::*, types::Opaque};
 //! use core::{ptr::addr_of_mut, marker::PhantomPinned, pin::Pin};
 //! # mod bindings {
diff --git a/rust/kernel/types.rs b/rust/kernel/types.rs
index 835824788506..9c5e7dbf1632 100644
--- a/rust/kernel/types.rs
+++ b/rust/kernel/types.rs
@@ -289,7 +289,6 @@ fn drop(&mut self) {
 /// # Examples
 ///
 /// ```
-/// # #![expect(clippy::disallowed_names)]
 /// use kernel::types::Opaque;
 /// # // Emulate a C struct binding which is from C, maybe uninitialized or not, only the C side
 /// # // knows.
diff --git a/scripts/rustdoc_test_gen.rs b/scripts/rustdoc_test_gen.rs
index 0e6a0542d1bd..be0561049660 100644
--- a/scripts/rustdoc_test_gen.rs
+++ b/scripts/rustdoc_test_gen.rs
@@ -208,7 +208,7 @@ macro_rules! assert_eq {{
     #[allow(unused)]
     static __DOCTEST_ANCHOR: i32 = ::core::line!() as i32 + {body_offset} + 1;
     {{
-        #![allow(unreachable_pub)]
+        #![allow(unreachable_pub, clippy::disallowed_names)]
         {body}
         main();
     }}
-- 
2.51.2