From b98214f6070ef5052b763b61ac2089a9ac6c8677 Mon Sep 17 00:00:00 2001 From: Dick Kennedy Date: Fri, 1 May 2020 14:43:04 -0700 Subject: [PATCH] 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.com Reviewed-by: Hannes Reinecke Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvme.c | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 12d2b2775773..c708abc9721c 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/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