linux-kernel - Re: [RFC][PATCH] checkpatch: require Fixes tag for fixup patches

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Date:   Tue, 11 Jan 2022 14:47:36 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Joe Perches <joe@...ches.com>, Andy Whitcroft <apw@...onical.com>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] checkpatch: require Fixes tag for fixup patches

On (21/11/30 20:15), Sergey Senozhatsky wrote:
> 
> Require "Fixes: hash" tag in those patches that appear to be
> fixing some particular commit.

Gentle ping.

> Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
> ---
>  scripts/checkpatch.pl | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index df8b23dc1eb0..4e97d0f6b995 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2493,6 +2493,9 @@ sub process {
>  	my $commit_log_has_diff = 0;
>  	my $reported_maintainer_file = 0;
>  	my $non_utf8_charset = 0;
> +	my $fixes_id = 0;
> +	my $fixes_description = 0;
> +	my $fixes_tag = 0;
>  
>  	my $last_blank_line = 0;
>  	my $last_coalesced_string_linenr = -1;
> @@ -3076,6 +3079,11 @@ sub process {
>  			}
>  		}
>  
> +# Check for Fixes tag
> +		if ($in_commit_log && $line =~ /\b[Ff]ixes:\s*[0-9a-f]{12,40}/) {
> +			$fixes_tag = 1;
> +		}
> +
>  # Check for git id commit length and improperly formed commit descriptions
>  		if ($in_commit_log && !$commit_log_possible_stack_dump &&
>  		    $line !~ /^\s*(?:Link|Patchwork|http|https|BugLink|base-commit):/i &&
> @@ -3128,6 +3136,11 @@ sub process {
>  			($id, $description) = git_commit_info($orig_commit,
>  							      $id, $orig_desc);
>  
> +			if (defined($id)) {
> +				$fixes_id = $id;
> +				$fixes_description = $description;
> +			}
> +
>  			if (defined($id) &&
>  			   ($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) {
>  				ERROR("GIT_COMMIT_ID",
> @@ -7326,6 +7339,12 @@ sub process {
>  		}
>  	}
>  
> +	if ($is_patch && $has_commit_log && $fixes_id && !$fixes_tag) {
> +		ERROR("GIT_COMMIT_ID",
> +		      "Please add 'Fixes: $fixes_id (\"$fixes_description\")'\n", );
> +		$fixes_id = 0;
> +	}
> +
>  	print report_dump();
>  	if ($summary && !($clean == 1 && $quiet == 1)) {
>  		print "$filename " if ($summary_file);
> -- 
> 2.34.0.rc2.393.gf8c9666880-goog
>