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Message-Id: <20180313152500.698718331@linuxfoundation.org>
Date:   Tue, 13 Mar 2018 16:24:01 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Quinn Tran <quinn.tran@...ium.com>,
        Himanshu Madhani <himanshu.madhani@...ium.com>,
        Hannes Reinecke <hare@...e.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.14 038/140] scsi: qla2xxx: Clear loop id after delete

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

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

From: Quinn Tran <quinn.tran@...ium.com>

commit ba743f9148e951abe1c94f89c174ec8e44fb145b upstream.

Clear loop id after delete to prevent session invalidation of stale
session.

Fixes: 726b85487067d ("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@...r.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@...ium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@...ium.com>
Reviewed-by: Hannes Reinecke <hare@...e.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_target.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -974,7 +974,7 @@ static void qlt_free_session_done(struct
 			qlt_send_first_logo(vha, &logo);
 		}
 
-		if (sess->logout_on_delete) {
+		if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
 			int rc;
 
 			rc = qla2x00_post_async_logout_work(vha, sess, NULL);
@@ -1033,8 +1033,7 @@ static void qlt_free_session_done(struct
 		sess->login_succ = 0;
 	}
 
-	if (sess->chip_reset != ha->base_qpair->chip_reset)
-		qla2x00_clear_loop_id(sess);
+	qla2x00_clear_loop_id(sess);
 
 	if (sess->conflict) {
 		sess->conflict->login_pause = 0;
@@ -4588,9 +4587,9 @@ qlt_find_sess_invalidate_other(scsi_qla_
 				    "Invalidating sess %p loop_id %d wwn %llx.\n",
 				    other_sess, other_sess->loop_id, other_wwn);
 
-
 				other_sess->keep_nport_handle = 1;
-				*conflict_sess = other_sess;
+				if (other_sess->disc_state != DSC_DELETED)
+					*conflict_sess = other_sess;
 				qlt_schedule_sess_for_deletion(other_sess,
 				    true);
 			}


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