[PATCH 4.19 308/639] net: hns3: fix for vport->bw_limit overflow problem

[Greg Kroah-Hartman]

From: Yunsheng Lin <linyunsheng@xxxxxxxxxx>

[ Upstream commit 2566f10676ba996b745e138f54f3e2f974311692 ]

When setting vport->bw_limit to hdev->tm_info.pg_info[0].bw_limit
in hclge_tm_vport_tc_info_update, vport->bw_limit can be as big as
HCLGE_ETHER_MAX_RATE (100000), which can not fit into u16 (65535).

So this patch fixes it by using u32 for vport->bw_limit.

Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 260b1e7796908..d14b7018fdf34 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -600,7 +600,7 @@ struct hclge_vport {
 	u16 alloc_rss_size;
 
 	u16 qs_offset;
-	u16 bw_limit;		/* VSI BW Limit (0 = disabled) */
+	u32 bw_limit;		/* VSI BW Limit (0 = disabled) */
 	u8  dwrr;
 
 	struct hclge_tx_vtag_cfg  txvlan_cfg;
-- 
2.20.1