diff mbox series

[05/16] lpfc: Fix lack of device removal on port swaps with PRLIs

Message ID 20210410173034.67618-6-jsmart2021@gmail.com (mailing list archive)
State Superseded
Headers show
Series lpfc: Update lpfc to revision 12.8.0.9 | expand

Commit Message

James Smart April 10, 2021, 5:30 p.m. UTC 
During target port-swap testing with link flips, the initiator could
encounter PRLI errors.  If the target node disappears permanently, the
ndlp is found stuck in UNUSED state with ref count of 1. The rmmod of
the driver will hang waiting for this node to be freed.

While handling a link error in PRLI completion path, the code intends to
skip triggering the discovery state machine. However this is causing the
final reference release path to be skipped. This causes the node to be
stuck with ref count of 1

Fix by ensuring the code path triggers the device removal event on the
node state machine.

Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_els.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index e71b37608f60..8a8d949979c8 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -2233,9 +2233,7 @@  lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 				 irsp->un.ulpWord[4], ndlp->fc4_prli_sent);
 
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
-		if (lpfc_error_lost_link(irsp))
-			goto out;
-		else
+		if (!lpfc_error_lost_link(irsp))
 			lpfc_disc_state_machine(vport, ndlp, cmdiocb,
 						NLP_EVT_CMPL_PRLI);