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| author | Rob Herring <robh@kernel.org> | 2014-01-23 15:54:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 16:36:58 -0800 |
| commit | bff5da4335256513497cc8c79f9a9d1665e09864 (patch) | |
| tree | 4cd51486058e7cdd0ec77073f729da849a150da7 /scripts | |
| parent | 109d8cb2002dcb0fff04ff1afe8f1cec66bbdad9 (diff) | |
| download | lwn-bff5da4335256513497cc8c79f9a9d1665e09864.tar.gz lwn-bff5da4335256513497cc8c79f9a9d1665e09864.zip | |
checkpatch: add DT compatible string documentation checks
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 <robh@kernel.org>
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkpatch.pl | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index d89e4299c19d..05c99c0b7e6c 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2040,6 +2040,33 @@ sub process { "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag}); } +# check for DT compatible documentation + if (defined $root && $realfile =~ /\.dts/ && + $rawline =~ /^\+\s*compatible\s*=/) { + my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g; + + foreach my $compat (@compats) { + my $compat2 = $compat; + my $dt_path = $root . "/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"; + next if (! -f $vendor_path); + $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)$/); |