[Linux-kernel-mentees] [PATCH v2] Checkpatch: Disable commit log length check warning for signature tag

[Lukas Bulwahn]

On Mon, 27 Jul 2020, Nachiket Naganure wrote:

> Disable commit log length check in case of signature tag. If the commit
> log line has valid signature tags such as "Reported-and-tested-by" with
> more than 75 characters, suppress the long length warning.
> 
> For instance in commit ac854131d984 ("USB: core: Fix misleading driver bug
> report"), the corresponding patch contains a "Reported by" tag line which
> exceeds 75 chars. And there is no valid way to shorten the length.
> 
> Signed-off-by: Nachiket Naganure <nachiketun8 at gmail.com>

It looks more sound now. It applies cleanly on next-20200724, and it 
addresses the false positive in the mentioned commit.

The commit message header is still wrong.

If you run

  git log --oneline ./scripts/checkpatch.pl

you will see that all commits start with lower-case "checkpatch:" and very 
often, it continues with lower-case after the colon.

Fix that and send it out to intended recipients using get_maintainers.pl, 
also CC the kernel-mentees list, Shuah and me.

Lukas

> ---
>  scripts/checkpatch.pl | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 197436b20288..46237e9e0550 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2806,6 +2806,8 @@ sub process {
>  					# filename then :
>  		      $line =~ /^\s*(?:Fixes:|Link:)/i ||
>  					# A Fixes: or Link: line
> +		      $line =~ /$signature_tags/ ||
> +					# Check for signature_tags
>  		      $commit_log_possible_stack_dump)) {
>  			WARN("COMMIT_LOG_LONG_LINE",
>  			     "Possible unwrapped commit description (prefer a maximum 75 chars per line)\n" . $herecurr);
> -- 
> 2.25.1
> 
>