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SubjectRe: [PATCH] checkpatch: warn for p0 patch only if prefix is not b
Dafna,

On Mon, Jan 10, 2022 at 9:06 PM Dafna Hirschfeld
<dafna.hirschfeld@collabora.com> wrote:
>
> It might be that file 'b' happens to exit. In that
> case, if the prefix is also 'b' (which is the
> common case) we get the falsely warning:
>
> patch prefix 'b' exists, appears to be a -p0 patch
>
> So warn only if prefix is not 'b'
>

The checkpatch script that is maintained here is really only intended
for its use in the kernel development. You may use checkpatch anywhere
else, but any changes that increase complexity for those other use
cases is really difficult to argue for inclusion in the kernel
repository. The checkpatch script currently is already large and
complex enough and all rules need to be understood as rough
heuristics, not as strict rules.

So, can you point to a kernel repository where there is actually a
file 'b' included? On a quick scan, I could not find a file 'b' in the
current trees of the repositories on my machine.

I am just letting you know about what I have observed; I do not decide
on the inclusion of this patch, though.

Lukas

> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
> ---
> scripts/checkpatch.pl | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 1784921c645d..72263b142e39 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2821,7 +2821,7 @@ sub process {
> $in_commit_log = 0;
>
> $p1_prefix = $1;
> - if (!$file && $tree && $p1_prefix ne '' &&
> + if (!$file && $tree && $p1_prefix ne '' && $p1_prefix ne 'b' &&
> -e "$root/$p1_prefix") {
> WARN("PATCH_PREFIX",
> "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");

> --
> 2.17.1
>

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