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>
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index b777051..6bb2b52 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1941,8 +1941,8 @@
 
 	printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n",
 	     (aor == SCB_ABORT)? "ABORTING":"RESET",
-	     cmd->cmnd[0], cmd->device->channel, 
-	     cmd->device->id, cmd->device->lun);
+	     cmd->cmnd[0], cmd->device->channel,
+	     cmd->device->id, (u32)cmd->device->lun);
 
 	if(list_empty(&adapter->pending_list))
 		return FALSE;