--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -145,10 +145,10 @@ struct scsi_cmnd;
 
 /* defined in T10 SCSI Primary Commands-2 (SPC2) */
 struct scsi_varlen_cdb_hdr {
-	u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
-	u8 control;
-	u8 misc[5];
-	u8 additional_cdb_length;         /* total cdb length - 8 */
+	__u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
+	__u8 control;
+	__u8 misc[5];
+	__u8 additional_cdb_length;         /* total cdb length - 8 */
 	__be16 service_action;
 	/* service specific data follows */
 };
