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-rw-r--r--arch/x86/kernel/ksysfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index eb53d153f307..c2bedaea11f7 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/mm.h>
+#include <asm/io.h>
#include <asm/setup.h>
static ssize_t version_show(struct kobject *kobj,