diff --git a/localversion-rt b/localversion-rt
index 700c857efd9ba..22746d6390a42 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt8
+-rt9
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d130db6726414..79e759aac543b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5749,12 +5749,6 @@ sub process {
 			}
 		}
 
-# rwlock.h must not be included directly. It will be included via spinlock.h if needed.
-		if ($rawline =~ /\#\s*include.*\<linux\/rwlock\.h/) {
-			ERROR("INCLUDES_BAD_HEADER",
-				"Please don't include rwlock.h directly, use spinlock.h if needed.\n" . $herecurr);
-		}
-
 # warn if <asm/foo.h> is #included and <linux/foo.h> is available and includes
 # itself <asm/foo.h> (uses RAW line)
 		if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
