4.15-stable review patch. If anyone has any objections, please let me know.
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From: Jian Shen shenjian15@huawei.com
[ Upstream commit 94bfaafac9d2a3c0bcca00d01e38f7597b741799 ]
An error loop index was used while querying statistics data of tqps, which may cause call trace.
Fixes: 496d03e960ae ("net: hns3: Add Ethtool support to HNS3 driver") Signed-off-by: Jian Shen shenjian15@huawei.com Signed-off-by: Peng Li lipeng321@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c @@ -455,13 +455,13 @@ static u64 *hns3_get_stats_tqps(struct h struct hnae3_knic_private_info *kinfo = &handle->kinfo; struct hns3_enet_ring *ring; u8 *stat; - u32 i; + int i, j;
/* get stats for Tx */ for (i = 0; i < kinfo->num_tqps; i++) { ring = nic_priv->ring_data[i].ring; - for (i = 0; i < HNS3_TXQ_STATS_COUNT; i++) { - stat = (u8 *)ring + hns3_txq_stats[i].stats_offset; + for (j = 0; j < HNS3_TXQ_STATS_COUNT; j++) { + stat = (u8 *)ring + hns3_txq_stats[j].stats_offset; *data++ = *(u64 *)stat; } } @@ -469,8 +469,8 @@ static u64 *hns3_get_stats_tqps(struct h /* get stats for Rx */ for (i = 0; i < kinfo->num_tqps; i++) { ring = nic_priv->ring_data[i + kinfo->num_tqps].ring; - for (i = 0; i < HNS3_RXQ_STATS_COUNT; i++) { - stat = (u8 *)ring + hns3_rxq_stats[i].stats_offset; + for (j = 0; j < HNS3_RXQ_STATS_COUNT; j++) { + stat = (u8 *)ring + hns3_rxq_stats[j].stats_offset; *data++ = *(u64 *)stat; } }