Re: [Qemu-devel] [PATCH 4/5] checkpatch: bump most warnings to errors

[Paolo Bonzini <pbonzini@redhat.com>]

> >>> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> >>> index 714a000..ab08ca2 100755
> >>> --- a/scripts/checkpatch.pl
> >>> +++ b/scripts/checkpatch.pl
> >>> @@ -1289,11 +1289,11 @@ sub process {
> >>>  			# This is a signoff, if ugly, so do not double report.
> >>>  			$signoff++;
> >>>  			if (!($line =~ /^\s*Signed-off-by:/)) {
> >>> -				WARN("Signed-off-by: is the preferred form\n" .
> >>> +				ERROR("Signed-off-by: is the preferred form\n" .
> >>>  					$herecurr);
> >>>  			}
> >>
> >> If you turn this into an ERROR, it's not the "preferred form" anymore,
> >> but the "mandated form". So I'd suggest to either keep it as WARN or to
> >> rephrase the message.
> > 
> > What about:
> > 
> >                                 ERROR("Signed-off-by: is spelled with
> >                                 uppercase \"s\"\n" .
> >                                         $herecurr);
> 
> That would still be confusing if I'd spell it like "Signed-Off-BY", for
> example.


Right, so I guess "The correct form is \"Signed-off-by\"\n" is more precise.

> Maybe the outer check should simply not be case-insensitive, then you
> could remove this check here completely?

The reason for that is to hide the "Missing Signed-off-by: line(s)" error.
See here:

                        # This is a signoff, if ugly, so do not double report.
                        $signoff++;
...
        if ($is_patch && $chk_signoff && $signoff == 0) {
                ERROR("Missing Signed-off-by: line(s)\n");
        }

Thanks,

Paolo