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-rw-r--r--arch/x86_64/kernel/vsmp.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/vsmp.c b/arch/x86_64/kernel/vsmp.c
index 044e852bd25e..414caf0c5f9a 100644
--- a/arch/x86_64/kernel/vsmp.c
+++ b/arch/x86_64/kernel/vsmp.c
@@ -14,6 +14,7 @@
#include <linux/pci_ids.h>
#include <linux/pci_regs.h>
#include <asm/pci-direct.h>
+#include <asm/io.h>
static int __init vsmp_init(void)
{