scsi: lpfc: Remove re-binding of nvme rport during registration

The lldd rebinds the ndlp with rport during a nvme rport registration (via
nvme_fc_register_remoteport). If rport & ndlp pointers are same as the
previous one, the lldd will re-use the ndlp and rport association without
re-initialization. This assumption is incorrect. The lldd should be
ignorant of whether the returned rport pointer is new or not, and should
always assume it is new.

Remove the re-binding code, always assumes that rport pointer received from
transport is a new pointer.

Link: https://lore.kernel.org/r/20200501214310.91713-4-jsmart2021@gmail.comReviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_nvme.c

@@ -2321,38 +2321,6 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 		spin_unlock_irq(&vport->phba->hbalock);
 		rport = remote_port->private;
 		if (oldrport) {
-			/* New remoteport record does not guarantee valid
-			 * host private memory area.
-			 */
-			if (oldrport == remote_port->private) {
-				/* Same remoteport - ndlp should match.
-				 * Just reuse.
-				 */
-				lpfc_printf_vlog(ndlp->vport, KERN_INFO,
-						 LOG_NVME_DISC,
-						 "6014 Rebind lport to current "
-						 "remoteport x%px wwpn 0x%llx, "
-						 "Data: x%x x%x x%px x%px x%x "
-						 " x%06x\n",
-						 remote_port,
-						 remote_port->port_name,
-						 remote_port->port_id,
-						 remote_port->port_role,
-						 oldrport->ndlp,
-						 ndlp,
-						 ndlp->nlp_type,
-						 ndlp->nlp_DID);
-
-				/* It's a complete rebind only if the driver
-				 * is registering with the same ndlp. Otherwise
-				 * the driver likely executed a node swap
-				 * prior to this registration and the ndlp to
-				 * remoteport binding needs to be redone.
-				 */
-				if (prev_ndlp == ndlp)
-					return 0;
-
-			}
 
 			/* Sever the ndlp<->rport association
 			 * before dropping the ndlp ref from