linux-kernel - [PATCH 5.0 21/52] scsi: qla2xxx: Fix FC-AL connection target discovery

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Date:   Tue, 26 Mar 2019 15:30:08 +0900
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 <qtran@...vell.com>,
        Himanshu Madhani <hmadhani@...vell.com>,
        "Ewan D. Milne" <emilne@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 5.0 21/52] scsi: qla2xxx: Fix FC-AL connection target discovery

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

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

From: Quinn Tran <qtran@...vell.com>

commit 4705f10e82c63924bd84a9b31d15839ec9ba3d06 upstream.

Commit 7f147f9bfd44 ("scsi: qla2xxx: Fix N2N target discovery with Local
loop") fixed N2N target discovery for local loop.  However, same code is
used for FC-AL discovery as well. Added check to make sure we are bypassing
area and domain check only in N2N topology for target discovery.

Fixes: 7f147f9bfd44 ("scsi: qla2xxx: Fix N2N target discovery with Local loop")
Cc: stable@...r.kernel.org # 5.0+
Signed-off-by: Quinn Tran <qtran@...vell.com>
Signed-off-by: Himanshu Madhani <hmadhani@...vell.com>
Reviewed-by: Ewan D. Milne <emilne@...hat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_init.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4968,6 +4968,13 @@ qla2x00_configure_local_loop(scsi_qla_ho
 		    (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
 			continue;

+		/* Bypass if not same domain and area of adapter. */
+		if (area && domain && ((area != vha->d_id.b.area) ||
+		    (domain != vha->d_id.b.domain)) &&
+		    (ha->current_topology == ISP_CFG_NL))
+			continue;
+
+
 		/* Bypass invalid local loop ID. */
 		if (loop_id > LAST_LOCAL_LOOP_ID)
 			continue;