From: Rob Landley <redacted>

Commit b67177ecd956 broke the j-core SOC build with a link failure, because
mm/percpu.c function pcpu_post_unmap_tlb_flush() calls flush_tlb_kernel_range()
which is defined under #ifdef CONFIG_MMU.

Signed-off-by: Rob Landley <redacted>
---

 arch/sh/kernel/smp.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 65924d9ec245..3ec8f32aad85 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c

@@ -468,4 +468,9 @@ void flush_tlb_one(unsigned long asid, unsigned long vaddr)
 	local_flush_tlb_one(asid, vaddr);
 }

+#else
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	local_flush_tlb_all();
+}
 #endif