From: Yonglong Liu Date: Thu, 14 Nov 2019 02:32:41 +0000 (+0800) Subject: net: hns3: fix ETS bandwidth validation bug X-Git-Tag: v5.3.16~76 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e2caaa11cbc1d931c5b8f6ccdf76cd7544f741c0;p=thirdparty%2Fkernel%2Fstable.git net: hns3: fix ETS bandwidth validation bug [ Upstream commit c2d56897819338eb0ba8b93184f7d10329b36653 ] Some device only support 4 TCs, but the driver check the total bandwidth of 8 TCs, so may cause wrong configurations write to the hw. This patch uses hdev->tc_max to instead HNAE3_MAX_TC to fix it. Fixes: e432abfb99e5 ("net: hns3: add common validation in hclge_dcb") Signed-off-by: Yonglong Liu Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c index d9136a199d8db..f5c323e798343 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c @@ -124,7 +124,7 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, if (ret) return ret; - for (i = 0; i < HNAE3_MAX_TC; i++) { + for (i = 0; i < hdev->tc_max; i++) { switch (ets->tc_tsa[i]) { case IEEE_8021QAZ_TSA_STRICT: if (hdev->tm_info.tc_info[i].tc_sch_mode !=