Re: [PATCH v3 2/2] checkpatch: warn on known non-plural rust doc headers

[Alice Ryhl]

On Thu, Sep 12, 2024 at 9:57 PM Patrick Miller <paddymills@xxxxxxxxx> wrote:
>
> Adds a check for documentation in rust file. Warns if certain known
> documentation headers are not plural.
>
> The rust maintainers prefer document headers to be plural. This is to enforce
> consistency among the documentation as well as to protect against errors when
> additions are made. For example, if the header said "Example" because there was
> only 1 example, if a second example was added, making the header plural could
> easily be missed and the maintainers prefer to not have to remind people to fix
> their documentation.
>
> Link: https://github.com/Rust-for-Linux/linux/issues/1110
>
> v1: https://lore.kernel.org/rust-for-linux/2024090628-bankable-refusal-5f20@gregkh/T/#t
> v2: https://lore.kernel.org/rust-for-linux/92be0b48-cde9-4241-8ef9-7fe4d7c42466@xxxxxxxxx/T/#t
>   - fixed whitespace that was formatted due to editor settings
> v3:
>   - move && to previous line and remove whitespace in WARN per Joe Perches
>   - reformat following C coding style
> ---
>  scripts/checkpatch.pl | 7 ++++
> +++
>  1 file changed, 7 insertions(+)

This is missing your Signed-off-by and the changelog should be below
the --- line so it doesn't get included in the changelog when applied.

The change itself looks good to me.

Alice

>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 39032224d504..5b18246ad511 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -3900,6 +3900,13 @@ sub process {
>                              "Avoid using '.L' prefixed local symbol names for denoting a range of code via 'SYM_*_START/END' annotations; see Documentation/core-api/asm-annotations.rst\n" . $herecurr);
>                 }
>
> +# check that document section headers are plural in rust files
> +               if ($realfile =~ /\.rs$/ &&
> +                   $rawline =~ /^\+\s*\/\/\/\s+#+\s+(Example|Invariant|Guarantee|Panic)\s*$/) {
> +                       WARN("RUST_DOC_HEADER",
> +                            "Rust doc headers should be plural\n" . $herecurr);
> +               }
> +
>  # check we are in a valid source file C or perl if not then ignore this hunk
>                 next if ($realfile !~ /\.(h|c|pl|dtsi|dts)$/);
>
> --
> 2.46.0
>