linux-kernel - Re: [PATCH v2 1/1] checkpatch: support "base-commit:" format

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Message-ID: <19c18048e1fdec0b3db5c9a1b58f2b83514a6419.camel@perches.com>
Date:   Thu, 13 Feb 2020 07:25:57 -0800
From:   Joe Perches <joe@...ches.com>
To:     John Hubbard <jhubbard@...dia.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Andy Whitcroft <apw@...onical.com>,
        Jonathan Corbet <corbet@....net>,
        Konstantin Ryabitsev <konstantin@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] checkpatch: support "base-commit:" format

On Wed, 2020-02-12 at 21:50 -0800, John Hubbard wrote:
> In order to support the get-lore-mbox.py tool described in [1], I ran:
> 
>     git format-patch --base=<commit> --cover-letter <revrange>
> 
> ...which generated a "base-commit: <commit-hash>" tag at the end of the
> cover letter. However, checkpatch.pl generated an error upon encounting
> "base-commit:" in the cover letter:
> 
>     "ERROR: Please use git commit description style..."
> 
> ...because it found the "commit" keyword, and failed to recognize that
> it was part of the "base-commit" phrase, and as such, should not be
> subjected to the same commit description style rules.
> 
> Update checkpatch.pl to include a special case for "base-commit:" (at
> the start of the line, possibly with some leading whitespace) so
> that that tag no longer generates a checkpatch error.
> 
> [1] https://lwn.net/Articles/811528/ "Better tools for kernel
>     developers"
> 
> Cc: Andy Whitcroft <apw@...onical.com>
> Suggested-by: Joe Perches <joe@...ches.com>

Acked-by: Joe Perches <joe@...ches.com>

Andrew, can you pick this up please?

> Cc: Konstantin Ryabitsev <konstantin@...uxfoundation.org>
> Cc: Jonathan Corbet <corbet@....net>
> Signed-off-by: John Hubbard <jhubbard@...dia.com>
> ---
>  scripts/checkpatch.pl | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index a63380c6b0d2..1e66fc7a2f2f 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2761,7 +2761,7 @@ sub process {
>  
>  # Check for git id commit length and improperly formed commit descriptions
>  		if ($in_commit_log && !$commit_log_possible_stack_dump &&
> -		    $line !~ /^\s*(?:Link|Patchwork|http|https|BugLink):/i &&
> +		    $line !~ /^\s*(?:Link|Patchwork|http|https|BugLink|base-commit):/i &&
>  		    $line !~ /^This reverts commit [0-9a-f]{7,40}/ &&
>  		    ($line =~ /\bcommit\s+[0-9a-f]{5,}\b/i ||
>  		     ($line =~ /(?:\s|^)[0-9a-f]{12,40}(?:[\s"'\(\[]|$)/i &&