According to Devicetree maintainers (see Link: below), the Devicetree binding documents are preferrably licensed (GPL-2.0-only OR BSD-2-Clause). Let's check that. The actual check is a bit more relaxed, to allow more liberal but compatible licensing (e.g. GPL-2.0-or-later OR BSD-2-Clause). Link: https://lore.kernel.org/lkml/20200108142132.GA4830@bogus/ Signed-off-by: Lubomir Rintel <lkundrak@xxxxx> --- scripts/checkpatch.pl | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index e2976c3fe5ff8..ac93e98cddcee 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3111,6 +3111,11 @@ sub process { WARN("SPDX_LICENSE_TAG", "'$spdx_license' is not supported in LICENSES/...\n" . $herecurr); } + if ($realfile =~ m@^Documentation/devicetree/bindings/@ && + not $spdx_license =~ /GPL-2\.0.*BSD-2-Clause/) { + WARN("SPDX_LICENSE_TAG", + "DT binding documents should be licensed (GPL-2.0-only OR BSD-2-Clause)\n" . $herecurr); + } } } } -- 2.24.1
