scsi.h uses "u8" which isn't defined.

From:   Muli Ben-Yehuda <mulix@mulix.org>

IMO, it's more correct to include <linux/types.h> in scsi.h, which
will bring in u8 and make scsi.h compilable on its own (provided
__KERNEL__ is defined, as it should be). 

include/scsi/scsi.h

@@ -14,6 +14,8 @@
 
 */
 
+#include <linux/types.h> 
+
 /*
  * SCSI command lengths
  */