On Wed, 2013-12-04 at 10:03 -0600, Rob Herring wrote:
> From: Rob Herring <rob.herr...@calxeda.com>
> 
> This adds a simple check that any compatible strings in DeviceTree dts
> files are present in Documentation/devicetree/bindings. Vendor prefixes
> are also checked for existing in vendor-prefixes.txt These should be
> temporary checks until we have more sophisticated binding schema checking.
> 
> Signed-off-by: Rob Herring <rob.herr...@calxeda.com>
> Cc: Grant Likely <grant.lik...@linaro.org>
> Cc: Andy Whitcroft <a...@canonical.com>
> Cc: Joe Perches <j...@perches.com>

Signed-off-by: Joe Perches <j...@perches.com>

> ---
> v3:
> - Use a single message type UNDOCUMENTED_DT_STRING
> - Ensure '+' is at beginning of the line
> - Move vendor-prefixes.txt to variable
> 
> v2:
> - Add vendor string checking against vendor-prefixes.txt
> - Add '_', '.' and '+' as valid compatible string characters
> - Use 'grep -E' instead of egrep
> 
>  scripts/checkpatch.pl | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 9c98100..3696366 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2034,6 +2034,31 @@ sub process {
>                            "Use of $flag is deprecated, please use 
> \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
>               }
>  
> +# check for DT compatible documentation
> +             if ($realfile =~ /\.dts/ && $rawline =~ /^\+\s*compatible\s*=/) 
> {
> +                     my @compats = $rawline =~ 
> /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
> +
> +                     foreach my $compat (@compats) {
> +                             my $compat2 = $compat;
> +                             my $dt_path = 
> "Documentation/devicetree/bindings/";
> +                             $compat2 =~ s/\,[a-z]*\-/\,<\.\*>\-/;
> +                             `grep -Erq "$compat|$compat2" $dt_path`;
> +                             if ( $? >> 8 ) {
> +                                     WARN("UNDOCUMENTED_DT_STRING",
> +                                          "DT compatible string \"$compat\" 
> appears un-documented -- check $dt_path\n" . $herecurr);
> +                             }
> +
> +                             my $vendor = $compat;
> +                             my $vendor_path = $dt_path . 
> "vendor-prefixes.txt";
> +                             $vendor =~ s/^([a-zA-Z0-9]+)\,.*/$1/;
> +                             `grep -Eq "$vendor" $vendor_path`;
> +                             if ( $? >> 8 ) {
> +                                     WARN("UNDOCUMENTED_DT_STRING",
> +                                          "DT compatible string vendor 
> \"$vendor\" appears un-documented -- check $vendor_path\n" . $herecurr);
> +                             }
> +                     }
> +             }
> +
>  # check we are in a valid source file if not then ignore this hunk
>               next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
>  



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