scsi: lpfc: Fix failure to delete vports when discovery is in progress

Requests to delete an NPIV port may fail repeatedly if the initial request
is received during discovery.

If the FC_UNLOADING load_flag is set, then skip CT response processing for
the physical port.  This allows discovery processing for other lpfc_vport
objects to reach their cmpl routines before deleting the vport.

Signed-off-by: Justin Tee <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Himanshu Madhani <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: Justin Tee

drivers/scsi/lpfc/lpfc_ct.c

@@ -943,8 +943,8 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		goto out;
 	}
 
-	/* Don't bother processing response if vport is being torn down. */
-	if (vport->load_flag & FC_UNLOADING) {
+	/* Skip processing response on pport if unloading */
+	if (vport == phba->pport && vport->load_flag & FC_UNLOADING) {
 		if (vport->fc_flag & FC_RSCN_MODE)
 			lpfc_els_flush_rscn(vport);
 		goto out;
@@ -1166,8 +1166,8 @@ lpfc_cmpl_ct_cmd_gid_pt(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		goto out;
 	}
 
-	/* Don't bother processing response if vport is being torn down. */
-	if (vport->load_flag & FC_UNLOADING) {
+	/* Skip processing response on pport if unloading */
+	if (vport == phba->pport && vport->load_flag & FC_UNLOADING) {
 		if (vport->fc_flag & FC_RSCN_MODE)
 			lpfc_els_flush_rscn(vport);
 		goto out;