diff --git a/[refs] b/[refs]
index 998c07039edc..c126de10a9d0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1e9505279a8a2303d8feef4e464e6f48ea644f03
+refs/heads/master: 2b105ff9cccea5533ad518bb37dc9b43a322f7b1
diff --git a/trunk/arch/s390/Kconfig b/trunk/arch/s390/Kconfig
index 5b28da4ad809..224fbff79969 100644
--- a/trunk/arch/s390/Kconfig
+++ b/trunk/arch/s390/Kconfig
@@ -7,6 +7,10 @@ config MMU
 	bool
 	default y
 
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
 config STACKTRACE_SUPPORT
 	bool
 	default y