[SCSI] iscsi class: remove host no argument from session creation callout

We do not need to have llds set the host no for the session's
parent, because we know the session's parent is going to be
the host. This removes it from the session creation callback
and converts the drivers.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 6c61ed1..13d7674 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -397,7 +397,7 @@
 static struct iscsi_cls_session *
 iscsi_iser_session_create(struct iscsi_endpoint *ep,
 			  uint16_t cmds_max, uint16_t qdepth,
-			  uint32_t initial_cmdsn, uint32_t *hostno)
+			  uint32_t initial_cmdsn)
 {
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
@@ -423,7 +423,6 @@
 	if (iscsi_host_add(shost,
 			   ep ? ib_conn->device->ib_device->dma_device : NULL))
 		goto free_host;
-	*hostno = shost->host_no;
 
 	/*
 	 * we do not support setting can_queue cmd_per_lun from userspace yet