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

PATCH [email protected] 1 participant 1 message Apr 9, 2018

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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 <[email protected]> know about it.

Quoted 1 line

From foo@baz Mon Apr 9 10:16:32 CEST 2018

From: Jian Shen <[email protected]>
Date: Fri, 5 Jan 2018 18:18:13 +0800
Subject: net: hns3: Fix a loop index error of tqp statistics query

From: Jian Shen <[email protected]>

[ 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")
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c +5 -5
@@ -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 [email protected] 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