From: Lubomir Rintel <lkundrak@xxxxx> Subject: checkpatch: check proper licensing of Devicetree bindings 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/ Link: http://lkml.kernel.org/r/20200309215153.38824-1-lkundrak@xxxxx Signed-off-by: Lubomir Rintel <lkundrak@xxxxx> Acked-by: Joe Perches <joe@xxxxxxxxxxx> Cc: Rob Herring <robh@xxxxxxxxxx> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>, Cc: Jonas Karlman <jonas@xxxxxxxxx>, Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxx>, Cc: Mark Rutland <mark.rutland@xxxxxxx>, Cc: David Airlie <airlied@xxxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx>, Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/checkpatch.pl | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/scripts/checkpatch.pl~checkpatch-check-proper-licensing-of-devicetree-bindings +++ a/scripts/checkpatch.pl @@ -3157,6 +3157,17 @@ 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/) { + my $msg_level = \&WARN; + $msg_level = \&CHK if ($file); + if (&{$msg_level}("SPDX_LICENSE_TAG", + + "DT binding documents should be licensed (GPL-2.0-only OR BSD-2-Clause)\n" . $herecurr) && + $fix) { + $fixed[$fixlinenr] =~ s/SPDX-License-Identifier: .*/SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)/; + } + } } } } _
