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-rw-r--r--arch/s390/mm/maccess.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 921fa541dc04..d1e0e0c7a7e2 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -14,6 +14,7 @@
#include <linux/gfp.h>
#include <linux/cpu.h>
#include <asm/ctl_reg.h>
+#include <asm/io.h>
/*
* This function writes to kernel memory bypassing DAT and possible