[PATCH 4.9 05/66] xtensa: fix noMMU build on cores with MMU

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Max Filippov <jcmvbkbc@xxxxxxxxx>

commit 4b3e6f2ef3722f1a6a97b6034ed492c1a21fd4ae upstream.

Commit bf15f86b343ed8 ("xtensa: initialize MMU before jumping to reset
vector") calls MMU management functions even when CONFIG_MMU is not
selected. That breaks noMMU build on cores with MMU.

Don't manage MMU when CONFIG_MMU is not selected.

Signed-off-by: Max Filippov <jcmvbkbc@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/xtensa/kernel/setup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -540,7 +540,7 @@ subsys_initcall(topology_init);
 
 void cpu_reset(void)
 {
-#if XCHAL_HAVE_PTP_MMU
+#if XCHAL_HAVE_PTP_MMU && IS_ENABLED(CONFIG_MMU)
 	local_irq_disable();
 	/*
 	 * We have full MMU: all autoload ways, ways 7, 8 and 9 of DTLB must