--- zzzz-none-000/linux-3.10.107/drivers/scsi/sym53c8xx_2/sym_hipd.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/scsi/sym53c8xx_2/sym_hipd.h	2021-02-04 17:41:59.000000000 +0000
@@ -581,7 +581,7 @@
 #define sym_lp(tp, lun) (!lun) ? (tp)->lun0p : NULL
 #else
 #define sym_lp(tp, lun) \
-	(!lun) ? (tp)->lun0p : (tp)->lunmp ? (tp)->lunmp[(lun)] : NULL
+	(!lun) ? (tp)->lun0p : (tp)->lunmp ? (tp)->lunmp[((u8)lun)] : NULL
 #endif
 
 /*