linux-kernel - Re: [PATCH] checkpatch: add fix option for MISSING_SIGN

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Date:   Tue, 10 Nov 2020 12:19:50 -0800
From:   Joe Perches <joe@...ches.com>
To:     Aditya Srivastava <yashsri421@...il.com>
Cc:     lukas.bulwahn@...il.com,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] checkpatch: add fix option for MISSING_SIGN_OFF

On Wed, 2020-11-11 at 00:36 +0530, Aditya Srivastava wrote:
> Currently checkpatch warns us if there is no 'Signed-off-by' line
> for the patch.

trivial style and a comment:

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -2755,6 +2757,10 @@ sub process {
>  		if ($line =~ /^---$/) {
>  			$has_patch_separator = 1;
>  			$in_commit_log = 0;
> +			# to add missing sign off line before diff(s)
> +			if($patch_separator_linenr == 0) {

space after if

> +				$patch_separator_linenr = $linenr;
> +			}
[]
> @@ -7118,9 +7127,12 @@ sub process {
>  		      "Does not appear to be a unified-diff format patch\n");
>  	}
>  	if ($is_patch && $has_commit_log && $chk_signoff) {
> -		if ($signoff == 0) {
> -			ERROR("MISSING_SIGN_OFF",
> -			      "Missing Signed-off-by: line(s)\n");
> +		if ($signoff == 0 && !$non_standard_signature) {
> +			if (ERROR("MISSING_SIGN_OFF",
> +				  "Missing Signed-off-by: line(s)\n") &&
> +			    $fix) {
> +				fix_insert_line($patch_separator_linenr - 1, "Signed-off-by: $author");

Perhaps this needs to test $patch_separator_linenr to
make sure it's not 0.