From: Xiang Chen <chenxiang66@hisilicon.com>
Date: Sat, 9 Dec 2017 01:16:49 +0800
Subject: scsi: hisi_sas: re-add the lldd_port_deformed()
Git-commit: 336bd78bdabf39dbcee6b41f9628c6e51d1c25b0
Patch-mainline: v4.16-rc1
References: FATE#326253

In function sas_suspend_devices(), it requires callback lldd_port_deformed
callback to be implemented if lldd_port_deformed is implemented.

So add a stub for lldd_port_deformed.

Callback lldd_port_deformed was not required as the port deformation is done
elsewhere in the LLDD.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 9bd98e5be78e..ad122378b84a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1613,6 +1613,10 @@ static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
 	hisi_sas_port_notify_formed(sas_phy);
 }
 
+static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy)
+{
+}
+
 static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
 {
 	phy->phy_attached = 0;
@@ -1703,6 +1707,7 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
 	.lldd_query_task	= hisi_sas_query_task,
 	.lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha,
 	.lldd_port_formed	= hisi_sas_port_formed,
+	.lldd_port_deformed = hisi_sas_port_deformed,
 };
 
 void hisi_sas_init_mem(struct hisi_hba *hisi_hba)