1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/hdreg.h b/include/linux/hdreg.h
index 2b54eac738ea..818c6afc1091 100644
--- a/include/linux/hdreg.h
+++ b/include/linux/hdreg.h
@@ -60,13 +60,15 @@
 #define TAG_MASK                0xf8
 #endif /* __KERNEL__ */
 
+#include <linux/types.h>
+
 /*
  * Command Header sizes for IOCTL commands
  */
 
-#define HDIO_DRIVE_CMD_HDR_SIZE         (4 * sizeof(u8))
-#define HDIO_DRIVE_HOB_HDR_SIZE         (8 * sizeof(u8))
-#define HDIO_DRIVE_TASK_HDR_SIZE        (8 * sizeof(u8))
+#define HDIO_DRIVE_CMD_HDR_SIZE         (4 * sizeof(__u8))
+#define HDIO_DRIVE_HOB_HDR_SIZE         (8 * sizeof(__u8))
+#define HDIO_DRIVE_TASK_HDR_SIZE        (8 * sizeof(__u8))
 
 #define IDE_DRIVE_TASK_INVALID          -1
 #define IDE_DRIVE_TASK_NO_DATA          0