linux-kernel - [PATCH v1] checkpatch: add missing bindings license check

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Message-ID: <20230317201621.15518-1-ddrokosov@sberdevices.ru>
Date:   Fri, 17 Mar 2023 23:16:21 +0300
From:   Dmitry Rokosov <ddrokosov@...rdevices.ru>
To:     <krzysztof.kozlowski@...aro.org>, <robh@...nel.org>,
        <apw@...onical.com>, <joe@...ches.com>, <dwaipayanray1@...il.com>,
        <lukas.bulwahn@...il.com>
CC:     <kernel@...rdevices.ru>, <linux-kernel@...r.kernel.org>,
        <rockosov@...il.com>, Dmitry Rokosov <ddrokosov@...rdevices.ru>
Subject: [PATCH v1] checkpatch: add missing bindings license check

All headers from 'include/dt-bindings/' must be verified by checkpatch
together with Documentation bindings, because all of them are part of
the whole DT bindings system.

The requirement is dual licensed and matching string:
    'GPL-2.0-only OR BSD-2-Clause'

The issue was found during patch review:
https://lore.kernel.org/all/20230313201259.19998-4-ddrokosov@sberdevices.ru/

Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
---
 scripts/checkpatch.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 78cc595b98ce..2d12d39992cb 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3709,7 +3709,8 @@ sub process {
 						WARN("SPDX_LICENSE_TAG",
 						     "'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
 					}
-					if ($realfile =~ m@...cumentation/devicetree/bindings/@ &&
+					if (($realfile =~ m@...cumentation/devicetree/bindings/@ ||
+					    $realfile =~ m@...clude/dt-bindings/@) &&
 					    not $spdx_license =~ /GPL-2\.0.*BSD-2-Clause/) {
 						my $msg_level = \&WARN;
 						$msg_level = \&CHK if ($file);
-- 
2.36.0