diff options
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 13 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 5 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 803c7b9690c..94b86d5b146 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -853,6 +853,19 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, goto out_free_result; } + /* + * Non-standard SCSI targets may set the PDT to 0x1f (unknown or + * no device type) instead of using the Peripheral Qualifier to + * indicate that no LUN is present. For example, USB UFI does this. + */ + if (starget->pdt_1f_for_no_lun && (result[0] & 0x1f) == 0x1f) { + SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO + "scsi scan: peripheral device type" + " of 31, no device added\n")); + res = SCSI_SCAN_TARGET_PRESENT; + goto out_free_result; + } + res = scsi_add_lun(sdev, result, &bflags); if (res == SCSI_SCAN_LUN_PRESENT) { if (bflags & BLIST_KEY) { diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index cde84b39bb6..8d77da932d2 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -167,7 +167,10 @@ struct scsi_target { unsigned int channel; unsigned int id; /* target id ... replace * scsi_device.id eventually */ - unsigned long create:1; /* signal that it needs to be added */ + unsigned int create:1; /* signal that it needs to be added */ + unsigned int pdt_1f_for_no_lun; /* PDT = 0x1f */ + /* means no lun present */ + char scsi_level; void *hostdata; /* available to low-level driver */ unsigned long starget_data[0]; /* for the transport */ |