From a541f0ebcc08ed8bc0cc492eec9a86cb280a9f24 Mon Sep 17 00:00:00 2001
From: "Justin M. Forbes" <jforbes@fedoraproject.org>
Date: Wed, 31 Oct 2018 13:02:03 -0500
Subject: s390/mm: Fix ERROR: "__node_distance" undefined!

Fixes:
ERROR: "__node_distance" [drivers/nvme/host/nvme-core.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1
make: *** [Makefile:1275: modules] Error 2
+ exit 1

Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/numa/numa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index 5bd374491f94..6c151b42e65d 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -54,6 +54,7 @@ int __node_distance(int a, int b)
 {
 	return mode->distance ? mode->distance(a, b) : 0;
 }
+EXPORT_SYMBOL(__node_distance);
 
 int numa_debug_enabled;
 
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