[SCSI] move single_lun flag from scsi_device to scsi_target Some SCSI tape medium changers that need the BLIST_SINGLELUN flag have the medium changer at one LUN and the tape drive at a different LUN. The inquiry string of the tape drive may be different from that of the medium changer. In order for single_lun to be effective, every scsi_device under a given scsi_target must have it set. This means that there needs to be a blacklist entry for BOTH the medium changer AND the tape drive, which is impractical because some medium changers may be paired with a variety of different tape drive models. It makes more sense to put the single_lun flag in scsi_target instead of scsi_device, which causes every device at a given target ID to inherit the single_lun flag from one LUN. This makes it possible to blacklist just the medium changer and not the tape drive. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 7e8b204..ada72af 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c
@@ -865,7 +865,7 @@ sdev->no_start_on_add = 1; if (*bflags & BLIST_SINGLELUN) - sdev->single_lun = 1; + scsi_target(sdev)->single_lun = 1; sdev->use_10_for_rw = 1;