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-rw-r--r--arch/um/drivers/ubd_kern.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 70509ddaac03..2e09f162c42f 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -20,6 +20,7 @@
#define MAJOR_NR UBD_MAJOR
#define UBD_SHIFT 4
+#include "linux/kernel.h"
#include "linux/module.h"
#include "linux/blkdev.h"
#include "linux/hdreg.h"