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scsi: lpfc: Skip RSCN processing when FC_UNLOADING flag is set

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During rmmod, all ndlp objects are cleaned up and marked with the
NLP_DROPPED flag indicating that an ndlp object is currently being
released.  Thus, if an RSCN is received during driver unload, then
walking the fc_nodes list to process the RSCN is unnecessary because the
ndlp objects are very shortly going to be released.

In the lpfc_rscn_recovery_check routine, early return if the driver is in
the middle of unloading by checking for the FC_UNLOADING flag.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20250618192138.124116-5-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Justin Tee 2025-06-18 12:21:29 -07:00 committed by Martin K. Petersen
parent 6698796282
commit 37c893e36b
1 changed files with 7 additions and 0 deletions
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7
drivers/scsi/lpfc/lpfc_els.c
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@ -7861,6 +7861,13 @@ lpfc_rscn_recovery_check(struct lpfc_vport *vport)
/* Move all affected nodes by pending RSCNs to NPR state. */
list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) {
if (test_bit(FC_UNLOADING, &vport->load_flag)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"1000 %s Unloading set\n",
__func__);
return 0;
}
if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
!lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
continue;