Patch "net: hns3: Fix a loop index error of tqp statistics query" has been added to the 4.15-stable tree

Patch "net: hns3: Fix a loop index error of tqp statistics query" has been added to the 4.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: hns3: Fix a loop index error of tqp statistics query

to the 4.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-hns3-fix-a-loop-index-error-of-tqp-statistics-query.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 10:16:32 CEST 2018
From: Jian Shen <shenjian15@huawei.com>
Date: Fri, 5 Jan 2018 18:18:13 +0800
Subject: net: hns3: Fix a loop index error of tqp statistics query

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;
 		}
 	}


Patches currently in stable-queue which might be from shenjian15@huawei.com are

queue-4.15/net-hns3-fix-a-loop-index-error-of-tqp-statistics-query.patch
queue-4.15/net-hns3-fix-an-error-macro-definition-of-hns3_tqp_stat.patch
queue-4.15/net-hns3-fix-an-error-of-total-drop-packet-statistics.patch