linux-kernel - Re: [PATCH 1/2] checkpatch: fix wildcard DT compatible string checking

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Date:	Tue, 08 Apr 2014 08:03:06 -0700
From:	Joe Perches <joe@...ches.com>
To:	Rob Herring <robherring2@...il.com>
Cc:	linux-kernel@...r.kernel.org, Rob Herring <robh@...nel.org>,
	Florian Vaussard <florian.vaussard@...l.ch>,
	Andy Whitcroft <apw@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/2] checkpatch: fix wildcard DT compatible string
 checking

On Tue, 2014-04-08 at 08:25 -0500, Rob Herring wrote:
> We attempt to search for compatible strings which use a variable
> token in the documented name such as <chip> or <soc>. While this
> was attempted to be handled, it's utterly broken.

Looks like you've left some debugging stuff in this patch.

> The desired forms of matching are:
> 
> vendor,<chip>-*
> vendor,name<part#>-*

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 34eb216..0e960b1 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2093,8 +2093,11 @@ sub process {
>  
>  			foreach my $compat (@compats) {
>  				my $compat2 = $compat;
> -				$compat2 =~ s/\,[a-z]*\-/\,<\.\*>\-/;
> -				`grep -Erq "$compat|$compat2" $dt_path`;
> +				$compat2 =~ s/\,[a-zA-Z0-9]*\-/\,<\.\*>\-/;
> +				my $compat3 = $compat;
> +				$compat3 =~ s/\,([a-z]*)[0-9]*\-/\,$1<\.\*>\-/;
> +				print "$compat3\n";

debugging code?

> +				`grep -Erq "$compat|$compat2|$compat3" $dt_path`;
>  				if ( $? >> 8 ) {
>  					WARN("UNDOCUMENTED_DT_STRING",
>  					     "DT compatible string \"$compat\" appears un-documented -- check $dt_path\n" . $herecurr);



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