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, 6 insertions, 5 deletions

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 114ff0c6e311..d2c9bf39033d 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -2110,7 +2110,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
                  */
                 printk("%s:%d:%d:%d: Is not an active device\n",
                        ahc_name(ahc), cmd->device->channel, cmd->device->id,
-                       cmd->device->lun);
+                       (u8)cmd->device->lun);
                 retval = SUCCESS;
                 goto no_cmd;
         }
@@ -2118,11 +2118,11 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
         if ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED)) == 0
          && ahc_search_untagged_queues(ahc, cmd, cmd->device->id,
                                        cmd->device->channel + 'A',
-                                       cmd->device->lun,
+                                       (u8)cmd->device->lun,
                                        CAM_REQ_ABORTED, SEARCH_COMPLETE) != 0) {
                 printk("%s:%d:%d:%d: Command found on untagged queue\n",
                        ahc_name(ahc), cmd->device->channel, cmd->device->id,
-                       cmd->device->lun);
+                       (u8)cmd->device->lun);
                 retval = SUCCESS;
                 goto done;
         }
@@ -2188,13 +2188,14 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
                                        SEARCH_COMPLETE) > 0) {
                         printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
                                ahc_name(ahc), cmd->device->channel,
-                                        cmd->device->id, cmd->device->lun);
+                               cmd->device->id, (u8)cmd->device->lun);
                         retval = SUCCESS;
                         goto done;
                 }
         } else if (ahc_search_qinfifo(ahc, cmd->device->id,
                                       cmd->device->channel + 'A',
-                                      cmd->device->lun, pending_scb->hscb->tag,
+                                      cmd->device->lun,
+                                      pending_scb->hscb->tag,
                                       ROLE_INITIATOR, /*status*/0,
                                       SEARCH_COUNT) > 0) {
                 disconnected = FALSE;