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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 <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>
This commit is contained in:
Dick Kennedy 2020-05-01 14:43:04 -07:00 committed by Martin K. Petersen
parent 164ba8d2df
commit b98214f607
1 changed files with 0 additions and 32 deletions
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32
drivers/scsi/lpfc/lpfc_nvme.c
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@ -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