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Message-ID: <ff6e3942-24e4-25ec-946c-cc6301ebf260@collabora.com>
Date: Tue, 11 Jan 2022 12:47:26 +0200
From: Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
To: Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
kernel@...labora.com, Andy Whitcroft <apw@...onical.com>,
Joe Perches <joe@...ches.com>,
Dwaipayan Ray <dwaipayanray1@...il.com>
Subject: Re: [PATCH] checkpatch: warn for p0 patch only if prefix is not b
On 11.01.22 12:18, Lukas Bulwahn wrote:
> Dafna,
>
> On Mon, Jan 10, 2022 at 9:06 PM Dafna Hirschfeld
> <dafna.hirschfeld@...labora.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.
Hi, a 'b' file might make it to the source folder as an untracked file.
This actually happened to me since I was too lazy to give it a meaningful name.
Then I got this warning and it took me some time to figure out what is the problem.
Thanks,
Dafna
>
> Lukas
>
>> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@...labora.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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