scsilun_to_int() has an error which prevents it from generating
correct LUN numbers for 64bit values.
Also we should remove the misleading comment about portions of
the LUN being ignored; the initiator should treat the LUN as
an opaque value.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/scsi/scsi_scan.c | 9 +++------
1 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 3e58b22..4f315f5 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1228,14 +1228,11 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget,
* truncation before using this function.
*
* Notes:
- * The struct scsi_lun is assumed to be four levels, with each level
- * effectively containing a SCSI byte-ordered (big endian) short; the
- * addressing bits of each level are ignored (the highest two bits).
* For a description of the LUN format, post SCSI-3 see the SCSI
* Architecture Model, for SCSI-3 see the SCSI Controller Commands.
*
- * Given a struct scsi_lun of: 0a 04 0b 03 00 00 00 00, this function returns
- * the integer: 0x0b030a04
+ * Given a struct scsi_lun of: 0a 04 0b 03 00 00 00 00, this function
+ * returns the integer: 0x0b030a04
**/
int scsilun_to_int(struct scsi_lun *scsilun)
{
@@ -1244,7 +1241,7 @@ int scsilun_to_int(struct scsi_lun *scsilun)
lun = 0;
for (i = 0; i < sizeof(lun); i += 2)
- lun = lun | (((scsilun->scsi_lun[i] << 8) |
+ lun = lun | (((scsilun->scsi_lun[i] << ((i + 1) * 8)) |
scsilun->scsi_lun[i + 1]) << (i * 8));
return lun;
}
--
1.7.4.2
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