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rust: introduce .clippy.toml

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Some Clippy lints can be configured/tweaked. We will use these knobs to
our advantage in later commits.

This is done via a configuration file, `.clippy.toml` [1]. The file is
currently unstable. This may be a problem in the future, but we can adapt
as needed. In addition, we proposed adding Clippy to the Rust CI's RFL
job [2], so we should be able to catch issues pre-merge.

Thus introduce the file.

Link: https://doc.rust-lang.org/clippy/configuration.html [1]
Link: https://github.com/rust-lang/rust/pull/128928 [2]
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Tested-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/20240904204347.168520-12-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda 2024-09-04 22:43:39 +02:00
parent 5e7c9b84ad
commit 7d56786edc
4 changed files with 6 additions and 0 deletions
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1
.clippy.toml Normal file
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@ -0,0 +1 @@
# SPDX-License-Identifier: GPL-2.0

1
.gitignore vendored
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@ -103,6 +103,7 @@ modules.order
# We don't want to ignore the following even if they are dot-files
#
!.clang-format
!.clippy.toml
!.cocciconfig
!.editorconfig
!.get_maintainer.ignore

1
MAINTAINERS
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@ -20222,6 +20222,7 @@ B: https://github.com/Rust-for-Linux/linux/issues
C: zulip://rust-for-linux.zulipchat.com
P: https://rust-for-linux.com/contributing
T: git https://github.com/Rust-for-Linux/linux.git rust-next
F: .clippy.toml
F: Documentation/rust/
F: rust/
F: samples/rust/

3
Makefile
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@ -587,6 +587,9 @@ endif
# Allows the usage of unstable features in stable compilers.
export RUSTC_BOOTSTRAP := 1
# Allows finding `.clippy.toml` in out-of-srctree builds.
export CLIPPY_CONF_DIR := $(srctree)
export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC HOSTPKG_CONFIG
export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN
export HOSTRUSTC KBUILD_HOSTRUSTFLAGS