[Linux-kernel-mentees] [PATCH] Script: Checkpatch: Disables commit log length check in case of valid signature tags

[Lukas Bulwahn]

Commit message is wrong.

On Sun, 26 Jul 2020, Nachiket Naganure wrote:

> Checkpatch.pl outputs warnings for commit description lines that exceed
> beyond 75 characters. Sometimes these lines might contain signature tags
> that cannot be shortened. The patch checks if the line has any valid
> signature tags and disables the warning in such a case.
> 
> For instance in commit ID ac854131d984, the patch
> contains a Reported by tag line which exceeds 75 chars. And there is no
> valid way to shorten the length.
> 
> To fix this, we need to check if the $line variable has any valid
> signature tags which are already stored in $signature_tags variable.
> 

Read the documentation on commit messages. Think about the things you are 
doing wrong in your commit message.

> Signed-off-by: Nachiket Naganure <nachiketun8 at gmail.com>
> ---
>  scripts/checkpatch.pl | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 197436b20288..b6d5e2a8fce8 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/ ||
> +          # Checks for signature_tags

Change looks more reasonable now.
Indentation is broken.


Maybe two or three iterations on this patch and it is getting ready for 
submission.

Lukas

>  		      $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
> 
>