linux-kernel - [PATCH] checkpatch: Fix false DT_SPLIT_BINDING

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Message-ID: <20260121212715.144495-1-robh@kernel.org>
Date: Wed, 21 Jan 2026 15:27:14 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Andy Whitcroft <apw@...onical.com>,
	Joe Perches <joe@...ches.com>,
	Dwaipayan Ray <dwaipayanray1@...il.com>,
	Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: Fix false DT_SPLIT_BINDING_PATCH warnings

Patches which both remove and add/modify DT binding files are
incorrectly flagged as needing to split the patch. The issue is the
check sees "dev/null" as one of the files in the patch which is not a DT
binding file. Add "dev/null" to the skipped files.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c0250244cf7a..f42c024fe6ef 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2924,7 +2924,7 @@ sub process {
 			}
 			$checklicenseline = 1;
 
-			if ($realfile !~ /^MAINTAINERS/) {
+			if ($realfile !~ /^(MAINTAINERS|dev\/null)/) {
 				my $last_binding_patch = $is_binding_patch;
 
 				$is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
-- 
2.51.0