[PATCH AUTOSEL 4.18 016/131] scsi: qla2xxx: Fix unintended Logout

From: Sasha Levin
Date: Sun Sep 02 2018 - 09:03:43 EST


From: Quinn Tran <quinn.tran@xxxxxxxxxx>

[ Upstream commit cb97f2c2e8d9f8c71ddbf04ad57e163ee6d86474 ]

During normal IO, FW can return IO with 'port unavailble' status. Driver
would send a LOGO to remote port for session resync. On an off chance, a
PLOGI could arrive before sending the LOGO. This patch will skip sendiing
LOGO if a PLOGI just came in.

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: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_target.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 1027b0cb7fa3..6dc1b1bd8069 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -982,8 +982,9 @@ void qlt_free_session_done(struct work_struct *work)

logo.id = sess->d_id;
logo.cmd_count = 0;
+ if (!own)
+ qlt_send_first_logo(vha, &logo);
sess->send_els_logo = 0;
- qlt_send_first_logo(vha, &logo);
}

if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
--
2.17.1