The driver has a limit of eight LUs because of the byte-sized bitfield that is used for busy flags. That means the maximum LUN is 7. The default is 8. Signed-off-by: Finn Thain Tested-by: Michael Schmitz --- Changed since v1: - Reduce shost->max_lun limit instead of adding 'MAX_LUN' limit. --- drivers/scsi/NCR5380.c | 2 ++ 1 file changed, 2 insertions(+) Index: linux/drivers/scsi/NCR5380.c =================================================================== --- linux.orig/drivers/scsi/NCR5380.c 2016-03-21 13:31:33.000000000 +1100 +++ linux/drivers/scsi/NCR5380.c 2016-03-21 13:31:36.000000000 +1100 @@ -488,6 +488,8 @@ static int NCR5380_init(struct Scsi_Host int i; unsigned long deadline; + instance->max_lun = 7; + hostdata->host = instance; hostdata->id_mask = 1 << instance->this_id; hostdata->id_higher_mask = 0;