scsi: use 64-bit value for 'max_luns'

Now that we're using 64-bit LUNs internally we need to increase
the size of max_luns to 64 bits, too.

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/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 8135f04..538d7a6 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -692,7 +692,7 @@
 void cxgbi_device_unregister(struct cxgbi_device *);
 void cxgbi_device_unregister_all(unsigned int flag);
 struct cxgbi_device *cxgbi_device_find_by_lldev(void *);
-int cxgbi_hbas_add(struct cxgbi_device *, unsigned int, unsigned int,
+int cxgbi_hbas_add(struct cxgbi_device *, u64, unsigned int,
 			struct scsi_host_template *,
 			struct scsi_transport_template *);
 void cxgbi_hbas_remove(struct cxgbi_device *);