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authorRob Herring <robh@kernel.org>2018-08-21 21:58:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-22 10:52:49 -0700
commit133712a2ec8493596565e9de3d25659d6e66a47e (patch)
tree9f48d3b7f7d0223ff572192da2dca9350d1441cd /scripts
parent809e082e973da2c7b751dab9348853cb8cc3f25c (diff)
checkpatch: DT bindings should be a separate patch
Devicetree bindings should be their own patch as documented in Documentation/devicetree/bindings/submitting-patches.txt section I.1. This is because bindings are logically independent from a driver implementation, they have a different maintainer (even though they often are applied via the same tree), and it makes for a cleaner history in the DT only tree created with git-filter-branch. [robh@kernel.org: add doc pointer to warning, simplify logic] Link: http://lkml.kernel.org/r/20180810170513.26284-1-robh@kernel.org [robh@kernel.org: v3] Link: http://lkml.kernel.org/r/20180810225049.20452-1-robh@kernel.org Link: http://lkml.kernel.org/r/20180809205032.22205-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Joe Perches <joe@perches.com> 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-xscripts/checkpatch.pl14
1 files changed, 14 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 5971b0c11616..5219280bf7ff 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2251,6 +2251,7 @@ sub process {
my $author = '';
my $authorsignoff = 0;
my $is_patch = 0;
+ my $is_binding_patch = -1;
my $in_header_lines = $file ? 0 : 1;
my $in_commit_log = 0; #Scanning lines before patch
my $has_commit_log = 0; #Encountered lines before patch
@@ -2501,6 +2502,19 @@ sub process {
$check = $check_orig;
}
$checklicenseline = 1;
+
+ if ($realfile !~ /^MAINTAINERS/) {
+ my $last_binding_patch = $is_binding_patch;
+
+ $is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
+
+ if (($last_binding_patch != -1) &&
+ ($last_binding_patch ^ $is_binding_patch)) {
+ WARN("DT_SPLIT_BINDING_PATCH",
+ "DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.txt\n");
+ }
+ }
+
next;
}

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