[SCSI] zfcp: Move qdio setup from erp to zfcp_qdio.c

Initialization of the qdio waitqueue should happen when the qdio data
is initialized and the QDIOUP flag should be handled in the qdio code
as well. Adjust the code accordingly and remove the superfluos
function zfcp_erp_adapter_strategy_open_qdio.

Reviewed-by: Steffen Maier <[e-mail]>
Signed-off-by: Christof Schmitt <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>

drivers/s390/scsi/zfcp_erp.c

···
 	read_unlock_irqrestore(&adapter->erp_lock, flags);
 }
 
-static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *act)
-{
-	struct zfcp_qdio *qdio = act->adapter->qdio;
-
-	if (zfcp_qdio_open(qdio))
-		return ZFCP_ERP_FAILED;
-	init_waitqueue_head(&qdio->req_q_wq);
-	atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &act->adapter->status);
-	return ZFCP_ERP_SUCCEEDED;
-}
-
 static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)
 {
 	struct zfcp_port *port;
···
 {
 	struct zfcp_adapter *adapter = act->adapter;
 
-	if (zfcp_erp_adapter_strategy_open_qdio(act)) {
+	if (zfcp_qdio_open(adapter->qdio)) {
 		atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
 				  ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
 				  &adapter->status);

drivers/s390/scsi/zfcp_qdio.c

···
 		return -ENOMEM;
 
 	zfcp_qdio_setup_init_data(&init_data, qdio);
+	init_waitqueue_head(&qdio->req_q_wq);
 
 	return qdio_allocate(&init_data);
 }
···
 	/* set index of first avalable SBALS / number of available SBALS */
 	qdio->req_q_idx = 0;
 	atomic_set(&qdio->req_q_free, QDIO_MAX_BUFFERS_PER_Q);
+	atomic_set_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &qdio->adapter->status);
 
 	return 0;