[PATCH 4.17 134/220] scsi: qla2xxx: Delete session for nport id change

From: Greg Kroah-Hartman
Date: Sun Jul 01 2018 - 13:04:03 EST


4.17-stable review patch. If anyone has any objections, please let me know.

------------------

From: Quinn Tran <quinn.tran@xxxxxxxxxx>

commit 1d317b21231bb2b81a6e0f94f708b8619ec8775b upstream.

This patch fixes regression introduced by commit a4239945b8ad ("scsi:
qla2xxx: Add switch command to simplify fabric discovery") by scheduling
session deletion when Nport ID changes.

[mkp: clarified commit]

Fixes: a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Quinn Tran <quinn.tran@xxxxxxxxxx>
Signed-off-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/scsi/qla2xxx/qla_gs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3915,7 +3915,6 @@ void qla24xx_async_gnnft_done(scsi_qla_h
if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))
continue;
fcport->scan_state = QLA_FCPORT_FOUND;
- fcport->d_id.b24 = rp->id.b24;
found = true;
/*
* If device was not a fabric device before.
@@ -3923,7 +3922,10 @@ void qla24xx_async_gnnft_done(scsi_qla_h
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
qla2x00_clear_loop_id(fcport);
fcport->flags |= FCF_FABRIC_DEVICE;
+ } else if (fcport->d_id.b24 != rp->id.b24) {
+ qlt_schedule_sess_for_deletion(fcport);
}
+ fcport->d_id.b24 = rp->id.b24;
break;
}