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Date:   Fri, 22 Mar 2019 12:15:02 +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, Himanshu Madhani <hmadhani@...vell.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 5.0 083/238] scsi: qla2xxx: Fix LUN discovery if loop id is not assigned yet by firmware

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

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

From: Himanshu Madhani <hmadhani@...vell.com>

commit ec322937a7f152d68755dc8316523bf6f831b48f upstream.

This patch fixes LUN discovery when loop ID is not yet assigned by the
firmware during driver load/sg_reset operations. Driver will now search for
new loop id before retrying login.

Fixes: 48acad099074 ("scsi: qla2xxx: Fix N2N link re-connect")
Cc: stable@...r.kernel.org #4.19
Signed-off-by: Himanshu Madhani <hmadhani@...vell.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 |   13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -644,11 +644,14 @@ static void qla24xx_handle_gnl_done_even
 				break;
 			case DSC_LS_PORT_UNAVAIL:
 			default:
-				if (fcport->loop_id != FC_NO_LOOP_ID)
-					qla2x00_clear_loop_id(fcport);
-
-				fcport->loop_id = loop_id;
-				fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
+				if (fcport->loop_id == FC_NO_LOOP_ID) {
+					qla2x00_find_new_loop_id(vha, fcport);
+					fcport->fw_login_state =
+					    DSC_LS_PORT_UNAVAIL;
+				}
+				ql_dbg(ql_dbg_disc, vha, 0x20e5,
+				    "%s %d %8phC\n", __func__, __LINE__,
+				    fcport->port_name);
 				qla24xx_fcport_handle_login(vha, fcport);
 				break;
 			}


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