The 'proc_name' entry in sysfs for hisi_sas is 'null' now becuase it is
not initialized in scsi_host_template. It looks like:

[root@localhost ~]# cat /sys/class/scsi_host/host2/proc_name
(null)

While the other driver's entry looks like:

linux-vnMQMU:~ # cat /sys/class/scsi_host/host0/proc_name
megaraid_sas

Cc: John Garry <john.ga...@huawei.com>
Cc: Xiang Chen <chenxian...@hisilicon.com>
Signed-off-by: Jason Yan <yanai...@huawei.com>
Acked-by: John Garry <john.ga...@huawei.com>
---

 v2: change subject to "display proc_name in sysfs" and add "Acked-by" tag.

 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 1 +
 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 1 +
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c 
b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index fa25766502a2..c205bff20943 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1757,6 +1757,7 @@ static struct device_attribute *host_attrs_v1_hw[] = {
 
 static struct scsi_host_template sht_v1_hw = {
        .name                   = DRV_NAME,
+       .proc_name              = DRV_NAME,
        .module                 = THIS_MODULE,
        .queuecommand           = sas_queuecommand,
        .target_alloc           = sas_target_alloc,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c 
b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index e05faf315dcd..c725cffe141e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -3533,6 +3533,7 @@ static struct device_attribute *host_attrs_v2_hw[] = {
 
 static struct scsi_host_template sht_v2_hw = {
        .name                   = DRV_NAME,
+       .proc_name              = DRV_NAME,
        .module                 = THIS_MODULE,
        .queuecommand           = sas_queuecommand,
        .target_alloc           = sas_target_alloc,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c 
b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 374885aa8d77..59b1421607dd 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -3071,6 +3071,7 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba 
*hisi_hba, bool enable)
 
 static struct scsi_host_template sht_v3_hw = {
        .name                   = DRV_NAME,
+       .proc_name              = DRV_NAME,
        .module                 = THIS_MODULE,
        .queuecommand           = sas_queuecommand,
        .target_alloc           = sas_target_alloc,
-- 
2.21.3

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