[PATCH AUTOSEL 4.14 161/371] net: hns3: fix for vport->bw_limit overflow problem
From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-16 18:27:33
Also in:
lkml, stable
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Yunsheng Lin <redacted>
[ 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 <redacted>
Signed-off-by: Yunsheng Lin <redacted>
Signed-off-by: Huazhong Tan <redacted>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 9fcfd9395424..a4c5e72d6012 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h@@ -480,7 +480,7 @@ 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; int vport_id;
--
2.20.1