The SCSI GET LBA STATUS command was introduced in SBC-3 revision
20 in September 2009. At that time the Parameter Data Length
field in the response had an associated byte offset of 8.
Then in SBC-3 revision 25 (October 2010) that byte offset was
changed to 4. The sg_get_lba_status utility in sg3_utils version
1.33 (released earlier today) has been changed to calculate
the newer response length. However the implementation of
GET LBA STATUS command in the scsi_debug driver still uses the
original byte offset.
Changelog:
- modify the Parameter Data Length field value in the GET LBA
STATUS command response to comply with the change in SBC-3
revision 25
Doug Gilbert
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 6888b2c..d2fd0ef 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2220,7 +2220,7 @@ static int resp_get_lba_status(struct scsi_cmnd * scmd,
mapped = map_state(lba, &num);
memset(arr, 0, SDEBUG_GET_LBA_STATUS_LEN);
- put_unaligned_be32(16, &arr[0]); /* Parameter Data Length */
+ put_unaligned_be32(20, &arr[0]); /* Parameter Data Length */
put_unaligned_be64(lba, &arr[8]); /* LBA */
put_unaligned_be32(num, &arr[16]); /* Number of blocks */
arr[20] = !mapped; /* mapped = 0, unmapped = 1 */
