scsi: use 64-bit LUNs

The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/scsi/arm/queue.c b/drivers/scsi/arm/queue.c
index cb11ccef54e5..3441ce3ebabf 100644
--- a/drivers/scsi/arm/queue.c
+++ b/drivers/scsi/arm/queue.c
@@ -167,7 +167,8 @@ struct scsi_cmnd *queue_remove_exclude(Queue_t *queue, unsigned long *exclude)
         spin_lock_irqsave(&queue->queue_lock, flags);
         list_for_each(l, &queue->head) {
                 QE_t *q = list_entry(l, QE_t, list);
-                if (!test_bit(q->SCpnt->device->id * 8 + q->SCpnt->device->lun, exclude)) {
+                if (!test_bit(q->SCpnt->device->id * 8 +
+                              (u8)(q->SCpnt->device->lun & 0x7), exclude)) {
                         SCpnt = __queue_remove(queue, l);
                         break;
                 }