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-rw-r--r--net/core/dev.c4
-rw-r--r--net/core/rtnetlink.c2
-rw-r--r--net/sched/sch_api.c2
-rw-r--r--net/sched/sch_teql.c2
4 files changed, 5 insertions, 5 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index d6b24749eb2e..882ce6375b2e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8959,7 +8959,7 @@ int dev_change_tx_queue_len(struct net_device *dev, unsigned long new_len)
return -ERANGE;
if (new_len != orig_len) {
- dev->tx_queue_len = new_len;
+ WRITE_ONCE(dev->tx_queue_len, new_len);
res = call_netdevice_notifiers(NETDEV_CHANGE_TX_QUEUE_LEN, dev);
res = notifier_to_errno(res);
if (res)
@@ -8973,7 +8973,7 @@ int dev_change_tx_queue_len(struct net_device *dev, unsigned long new_len)
err_rollback:
netdev_err(dev, "refused to change device tx_queue_len\n");
- dev->tx_queue_len = orig_len;
+ WRITE_ONCE(dev->tx_queue_len, orig_len);
return res;
}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index eb1a151c6910..7e156f535bd8 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1837,7 +1837,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
if (nla_put_string(skb, IFLA_IFNAME, devname))
goto nla_put_failure;
- if (nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
+ if (nla_put_u32(skb, IFLA_TXQLEN, READ_ONCE(dev->tx_queue_len)) ||
nla_put_u8(skb, IFLA_OPERSTATE,
netif_running(dev) ? dev->operstate : IF_OPER_DOWN) ||
nla_put_u8(skb, IFLA_LINKMODE, dev->link_mode) ||
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 6292d6d73b72..74afc210527d 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1334,7 +1334,7 @@ static struct Qdisc *qdisc_create(struct net_device *dev,
* before again attaching a qdisc.
*/
if ((dev->priv_flags & IFF_NO_QUEUE) && (dev->tx_queue_len == 0)) {
- dev->tx_queue_len = DEFAULT_TX_QUEUE_LEN;
+ WRITE_ONCE(dev->tx_queue_len, DEFAULT_TX_QUEUE_LEN);
netdev_info(dev, "Caught tx_queue_len zero misconfig\n");
}
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 59304611dc00..29850d0f0733 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -78,7 +78,7 @@ teql_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
struct net_device *dev = qdisc_dev(sch);
struct teql_sched_data *q = qdisc_priv(sch);
- if (q->q.qlen < dev->tx_queue_len) {
+ if (q->q.qlen < READ_ONCE(dev->tx_queue_len)) {
__skb_queue_tail(&q->q, skb);
return NET_XMIT_SUCCESS;
}