From: Huazhong Tan <tanhuazhong@huawei.com>
Date: Fri, 18 Jan 2019 16:13:08 +0800
Subject: net: hns3: modify parameter checks in the hns3_set_channels
Patch-mainline: v5.1-rc1
Git-commit: c78b5b6cdc8fd8a305b26ba59fe5fad6a0acbe6e
References: bsc#1126390

The number of queues for each enabled TC should range from 1 to
the maximum available value, and return directly if the value
is same as the current one.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -4156,15 +4156,14 @@ int hns3_set_channels(struct net_device
 		return -EINVAL;
 
 	if (new_tqp_num > hns3_get_max_available_channels(h) ||
-	    new_tqp_num < kinfo->num_tc) {
+	    new_tqp_num < 1) {
 		dev_err(&netdev->dev,
-			"Change tqps fail, the tqp range is from %d to %d",
-			kinfo->num_tc,
+			"Change tqps fail, the tqp range is from 1 to %d",
 			hns3_get_max_available_channels(h));
 		return -EINVAL;
 	}
 
-	if (kinfo->num_tqps == new_tqp_num)
+	if (kinfo->rss_size == new_tqp_num)
 		return 0;
 
 	ret = hns3_reset_notify(h, HNAE3_DOWN_CLIENT);