linux-kernel - Re: [PATCH v3] checkpatch: add dedicated checker for 'Fixes:' tag

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Date:   Wed, 29 Apr 2020 00:18:31 +0800
From:   Wang YanQing <udknight@...il.com>
To:     Markus Elfring <Markus.Elfring@....de>
Cc:     Joe Perches <joe@...ches.com>, Andy Whitcroft <apw@...onical.com>,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Matteo Croce <mcroce@...hat.com>
Subject: Re: [PATCH v3] checkpatch: add dedicated checker for 'Fixes:' tag

On Tue, Apr 28, 2020 at 12:52:59PM +0200, Markus Elfring wrote:
> > And there is no 'Fixes:' tag format checker in checkpatch
> 
> I have taken another look at corresponding implementation details.
> Will programming challenges get any more attention?
> 
> 
> > to check the commit id length too,
> 
> The mentioned script contains the following information.
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/scripts/checkpatch.pl?id=b240f960afb900e59112ebcfa5a759bb0a85a14e#n2818
> 
> # Check for git id commit length and improperly formed commit descriptions
> 
> 
> > so let's add dedicated checker to check these conditions for 'Fixes:' tag.
> 
> How do you think about to reconsider the usage of the word “checker”
> at specific places?

Yes, I will use the word "check" only in later version.

> 
> 
> > +		    my $id = '0123456789ab';
> > +		    my $orig_desc = "commit description";
> 
> * Do you try to extend the existing software analysis approach “GIT_COMMIT_ID”?
> 
> * Would you like to avoid the development of duplicate Perl code?

Fixes: lines don't need to have a "commit" prefix before the commit id, the description
in normal commit id could across multiple lines, and we don't need to consider the
$commit_log_possible_stack_dump for 'Fixes:' tag line. I mean it will make the GIT_COMMIT_ID
code become harder to read and maintain.

> 
> Regards,
> Markus