Re: [PATCH 1/2] checkpatch: Add check item for RFC tags is outside the subject prefix

[Joe Perches <joe@perches.com>]

On Fri, 2021-10-15 at 15:58 +0800, Cai Huoqing wrote:
> Some patches have been sent, the RFC tag of which is
> outside the subject prefix is incorrect. like this:
> "Subject: [PATCH v2] RFC:"
> 
> Perfer "Subject: [RFC PATCH v2]" to "Subject: [PATCH v2] RFC:",
> so add check item for it.

typo of prefer but does this matter enough to make it a test?

Same typo in next patch.

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -3121,6 +3121,12 @@ sub process {
>  			     "A patch subject line should describe the change not the tool that found it\n" . $herecurr);
>  		}
>  
> +# Check if RFC tags is outside the subject prefix
> +		if ($in_header_lines && $line =~ /^Subject:.*patch\s*.*]\s*rfc:/i) {
> +			WARN("RFC_TAG_PREFIX",
> +			     "RFC tag is outside subject prefix, try \"git format-patch --rfc\"\n" . $herecurr);
> +		}
> +
>  # Check for Gerrit Change-Ids not in any patch context
>  		if ($realfile eq '' && !$has_patch_separator && $line =~ /^\s*change-id:/i) {
>  			if (ERROR("GERRIT_CHANGE_ID",