[PATCH 3/9] lpfc: Remove re-binding of nvme rport during registration

James Smart
2020-05-01T21:43:28Z

The lldd rebinds the ndlp with rport during a nvme rport registration
(va 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-iniitalization. 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.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
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 43df08aeecf1..3121cf37a572 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -2322,38 +2322,6 @@ 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
--
2.26.1