Messages in this thread Patch in this message | | | From | Salil Mehta <> | Subject | [PATCH net-next 01/12] net: hns3: Fix ets validate issue | Date | Fri, 21 Sep 2018 16:41:37 +0100 |
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From: Jian Shen <shenjian15@huawei.com>
There is a defect in hclge_ets_validate(). If each member of tc_tsa is not IEEE_8021QAZ_TSA_ETS, the variable total_ets_bw won't be updated. In this case, the check for value of total_ets_bw will fail. This patch fixes it by checking total_ets_bw only after it has been updated.
Fixes: cacde272dd00 ("net: hns3: Add hclge_dcb module for the support of DCB feature") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c index f08ebb7..92f1938 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c @@ -73,6 +73,7 @@ static int hclge_ieee_getets(struct hnae3_handle *h, struct ieee_ets *ets) static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, u8 *tc, bool *changed) { + bool has_ets_tc = false; u32 total_ets_bw = 0; u8 max_tc = 0; u8 i; @@ -100,13 +101,14 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets, *changed = true; total_ets_bw += ets->tc_tx_bw[i]; - break; + has_ets_tc = true; + break; default: return -EINVAL; } } - if (total_ets_bw != BW_PERCENT) + if (has_ets_tc && total_ets_bw != BW_PERCENT) return -EINVAL; *tc = max_tc + 1; -- 2.7.4
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