[PATCH V2] checkpatch: Warn on uapi #includes that #include <uapi/...

[Joe Perches]

Avoid specifying internal uapi #include paths with uapi/...
as userspace should not use and never see that.

Neaten message line wrapping above.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
cc: David Howells <dhowells@xxxxxxxxxx>
---
 scripts/checkpatch.pl |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 054a293..5eab67e 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2238,8 +2238,11 @@ sub process {
 			my $path = $1;
 			if ($path =~ m{//}) {
 				ERROR("MALFORMED_INCLUDE",
-				      "malformed #include filename\n" .
-					$herecurr);
+				      "malformed #include filename\n" . $herecurr);
+			}
+			if ($path =~ "^uapi/" && $realfile =~ m@\binclude/uapi/@) {
+				ERROR("UAPI_INCLUDE",
+				      "No #include in ...include/uapi/... should use a uapi/ path prefix\n" . $herecurr);
 			}
 		}
 
-- 
1.7.8.112.g3fd21

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