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-rw-r--r--drivers/scsi/virtio_scsi.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 7554d7856434..a7cf726bc747 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -677,7 +677,11 @@ static int __devinit virtscsi_probe(struct virtio_device *vdev)
cmd_per_lun = virtscsi_config_get(vdev, cmd_per_lun) ?: 1;
shost->cmd_per_lun = min_t(u32, cmd_per_lun, shost->can_queue);
shost->max_sectors = virtscsi_config_get(vdev, max_sectors) ?: 0xFFFF;
- shost->max_lun = virtscsi_config_get(vdev, max_lun) + 1;
+
+ /* LUNs > 256 are reported with format 1, so they go in the range
+ * 16640-32767.
+ */
+ shost->max_lun = virtscsi_config_get(vdev, max_lun) + 1 + 0x4000;
shost->max_id = num_targets;
shost->max_channel = 0;
shost->max_cmd_len = VIRTIO_SCSI_CDB_SIZE;