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Since we are starting to support several Rust toolchains, lints (including Clippy ones) now may behave differently and lint groups may include new lints. Therefore, to maximize the chances a given version works, relax some deny-level lints to warnings. It may also make our lives a bit easier while developing new code or refactoring. To be clear, the requirements for in-tree code are still the same, since Rust code still needs to be warning-free (patches should be clean under `WERROR=y`) and the set of lints is not changed. `unsafe_op_in_unsafe_fn` is left unmodified, i.e. as an error, since it is becoming the default in the language (warn-by-default in Rust 2024 [1] and ideally an error later on) and thus it should also be very well tested. In addition, it is simple enough that it should not have false positives (unlike e.g. `rust_2018_idioms`'s `explicit_outlives_requirements`). `non_ascii_idents` is left unmodified as well, i.e. as an error, since it is unlikely one gains any productivity during development if it were a warning (in fact, it may be worse, since it is likely one made a typo). In addition, it should not have false positives. Finally, put the two `-D` ones at the top and take the chance to do one per line. Link: https://github.com/rust-lang/rust/pull/112038 [1] Reviewed-by: Finn Behrens <me@kloenk.dev> Tested-by: Benno Lossin <benno.lossin@proton.me> Tested-by: Andreas Hindborg <a.hindborg@samsung.com> Link: https://lore.kernel.org/r/20240709160615.998336-5-ojeda@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.