linux-kernel - Re: [PATCH v3] checkpatch: add warning for lines starting with a '#' in commit log

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Message-ID: <51225354b2a533250dad967ef413aaa4f41dfd66.camel@perches.com>
Date:   Wed, 02 Dec 2020 13:03:21 -0800
From:   Joe Perches <joe@...ches.com>
To:     Dwaipayan Ray <dwaipayanray1@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org, lukas.bulwahn@...il.com,
        Peilin Ye <yepeilin.cs@...il.com>
Subject: Re: [PATCH v3] checkpatch: add warning for lines starting with a
 '#' in commit log

On Thu, 2020-12-03 at 02:27 +0530, Dwaipayan Ray wrote:
> Commit log lines starting with '#' are dropped by git as comments.
> Add a check to emit a warning for these lines.
> 
> Also add a --fix option to insert a space before the leading '#' in
> such lines.
> 
> Suggested-by: Joe Perches <joe@...ches.com>
> Suggested-by: Peilin Ye <yepeilin.cs@...il.com>
> Tested-by: Peilin Ye <yepeilin.cs@...il.com>
> Signed-off-by: Dwaipayan Ray <dwaipayanray1@...il.com>

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

> ---
> Changes in v3:
> - Modify commit message for more clarity
> - Modify warning message
> - Modify --fix option to substitute single space instead of tab
> 
> Changes in v2:
> - Modify warning message and type
> - Style fixes
> 
>  scripts/checkpatch.pl | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index e8c1ed0b1fad..7940889877ba 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2966,6 +2966,15 @@ sub process {
>  			$commit_log_possible_stack_dump = 0;
>  		}
>  
> 
> +# Check for lines starting with a #
> +		if ($in_commit_log && $line =~ /^#/) {
> +			if (WARN("COMMIT_COMMENT_SYMBOL",
> +				 "Commit log lines starting with '#' are dropped by git as comments\n" . $herecurr) &&
> +			    $fix) {
> +				$fixed[$fixlinenr] =~ s/^/ /;
> +			}
> +		}
> +
>  # 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|base-commit):/i &&