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-rw-r--r--net/sched/cls_u32.c2
-rw-r--r--net/sched/sch_api.c42
-rw-r--r--net/sched/sch_atm.c9
-rw-r--r--net/sched/sch_cbq.c12
-rw-r--r--net/sched/sch_drr.c4
-rw-r--r--net/sched/sch_dsmark.c6
-rw-r--r--net/sched/sch_fifo.c3
-rw-r--r--net/sched/sch_generic.c24
-rw-r--r--net/sched/sch_hfsc.c8
-rw-r--r--net/sched/sch_htb.c12
-rw-r--r--net/sched/sch_mq.c2
-rw-r--r--net/sched/sch_multiq.c3
-rw-r--r--net/sched/sch_netem.c3
-rw-r--r--net/sched/sch_prio.c2
-rw-r--r--net/sched/sch_teql.c8
15 files changed, 72 insertions, 68 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 7416a5c73b2..b0c2a82178a 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -137,7 +137,7 @@ next_knode:
int toff = off + key->off + (off2 & key->offmask);
__be32 *data, _data;
- if (skb_headroom(skb) + toff < 0)
+ if (skb_headroom(skb) + toff > INT_MAX)
goto out;
data = skb_header_pointer(skb, toff, 4, &_data);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 6fb3d41c0e4..b22ca2d1ceb 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -240,7 +240,10 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
if (q)
goto out;
- q = qdisc_match_from_root(dev->rx_queue.qdisc_sleeping, handle);
+ if (dev_ingress_queue(dev))
+ q = qdisc_match_from_root(
+ dev_ingress_queue(dev)->qdisc_sleeping,
+ handle);
out:
return q;
}
@@ -690,6 +693,8 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
(new && new->flags & TCQ_F_INGRESS)) {
num_q = 1;
ingress = 1;
+ if (!dev_ingress_queue(dev))
+ return -ENOENT;
}
if (dev->flags & IFF_UP)
@@ -701,7 +706,7 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
}
for (i = 0; i < num_q; i++) {
- struct netdev_queue *dev_queue = &dev->rx_queue;
+ struct netdev_queue *dev_queue = dev_ingress_queue(dev);
if (!ingress)
dev_queue = netdev_get_tx_queue(dev, i);
@@ -979,7 +984,8 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
return -ENOENT;
q = qdisc_leaf(p, clid);
} else { /* ingress */
- q = dev->rx_queue.qdisc_sleeping;
+ if (dev_ingress_queue(dev))
+ q = dev_ingress_queue(dev)->qdisc_sleeping;
}
} else {
q = dev->qdisc;
@@ -1043,8 +1049,9 @@ replay:
if ((p = qdisc_lookup(dev, TC_H_MAJ(clid))) == NULL)
return -ENOENT;
q = qdisc_leaf(p, clid);
- } else { /*ingress */
- q = dev->rx_queue.qdisc_sleeping;
+ } else { /* ingress */
+ if (dev_ingress_queue_create(dev))
+ q = dev_ingress_queue(dev)->qdisc_sleeping;
}
} else {
q = dev->qdisc;
@@ -1123,11 +1130,14 @@ replay:
create_n_graft:
if (!(n->nlmsg_flags&NLM_F_CREATE))
return -ENOENT;
- if (clid == TC_H_INGRESS)
- q = qdisc_create(dev, &dev->rx_queue, p,
- tcm->tcm_parent, tcm->tcm_parent,
- tca, &err);
- else {
+ if (clid == TC_H_INGRESS) {
+ if (dev_ingress_queue(dev))
+ q = qdisc_create(dev, dev_ingress_queue(dev), p,
+ tcm->tcm_parent, tcm->tcm_parent,
+ tca, &err);
+ else
+ err = -ENOENT;
+ } else {
struct netdev_queue *dev_queue;
if (p && p->ops->cl_ops && p->ops->cl_ops->select_queue)
@@ -1304,8 +1314,10 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
if (tc_dump_qdisc_root(dev->qdisc, skb, cb, &q_idx, s_q_idx) < 0)
goto done;
- dev_queue = &dev->rx_queue;
- if (tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb, &q_idx, s_q_idx) < 0)
+ dev_queue = dev_ingress_queue(dev);
+ if (dev_queue &&
+ tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb,
+ &q_idx, s_q_idx) < 0)
goto done;
cont:
@@ -1595,8 +1607,10 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t) < 0)
goto done;
- dev_queue = &dev->rx_queue;
- if (tc_dump_tclass_root(dev_queue->qdisc_sleeping, skb, tcm, cb, &t, s_t) < 0)
+ dev_queue = dev_ingress_queue(dev);
+ if (dev_queue &&
+ tc_dump_tclass_root(dev_queue->qdisc_sleeping, skb, tcm, cb,
+ &t, s_t) < 0)
goto done;
done:
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 34066278952..282540778aa 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -255,10 +255,6 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
error = -EINVAL;
goto err_out;
}
- if (!list_empty(&flow->list)) {
- error = -EEXIST;
- goto err_out;
- }
} else {
int i;
unsigned long cl;
@@ -279,8 +275,7 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
goto err_out;
}
flow->filter_list = NULL;
- flow->q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops, classid);
+ flow->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, classid);
if (!flow->q)
flow->q = &noop_qdisc;
pr_debug("atm_tc_change: qdisc %p\n", flow->q);
@@ -547,7 +542,7 @@ static int atm_tc_init(struct Qdisc *sch, struct nlattr *opt)
INIT_LIST_HEAD(&p->flows);
INIT_LIST_HEAD(&p->link.list);
list_add(&p->link.list, &p->flows);
- p->link.q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ p->link.q = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, sch->handle);
if (!p->link.q)
p->link.q = &noop_qdisc;
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 28c01ef5abc..eb763159086 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1379,9 +1379,9 @@ static int cbq_init(struct Qdisc *sch, struct nlattr *opt)
q->link.sibling = &q->link;
q->link.common.classid = sch->handle;
q->link.qdisc = sch;
- if (!(q->link.q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
- sch->handle)))
+ q->link.q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
+ sch->handle);
+ if (!q->link.q)
q->link.q = &noop_qdisc;
q->link.priority = TC_CBQ_MAXPRIO-1;
@@ -1623,7 +1623,7 @@ static int cbq_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
struct cbq_class *cl = (struct cbq_class*)arg;
if (new == NULL) {
- new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ new = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, cl->common.classid);
if (new == NULL)
return -ENOBUFS;
@@ -1874,8 +1874,8 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t
cl->R_tab = rtab;
rtab = NULL;
cl->refcnt = 1;
- if (!(cl->q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops, classid)))
+ cl->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, classid);
+ if (!cl->q)
cl->q = &noop_qdisc;
cl->common.classid = classid;
cl->tparent = parent;
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index b74046a9539..aa8b5313f8c 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -110,7 +110,7 @@ static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
cl->refcnt = 1;
cl->common.classid = classid;
cl->quantum = quantum;
- cl->qdisc = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ cl->qdisc = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, classid);
if (cl->qdisc == NULL)
cl->qdisc = &noop_qdisc;
@@ -218,7 +218,7 @@ static int drr_graft_class(struct Qdisc *sch, unsigned long arg,
struct drr_class *cl = (struct drr_class *)arg;
if (new == NULL) {
- new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ new = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, cl->common.classid);
if (new == NULL)
new = &noop_qdisc;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 63d41f86679..1d295d62bb5 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -61,8 +61,7 @@ static int dsmark_graft(struct Qdisc *sch, unsigned long arg,
sch, p, new, old);
if (new == NULL) {
- new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
+ new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
sch->handle);
if (new == NULL)
new = &noop_qdisc;
@@ -384,8 +383,7 @@ static int dsmark_init(struct Qdisc *sch, struct nlattr *opt)
p->default_index = default_index;
p->set_tc_index = nla_get_flag(tb[TCA_DSMARK_SET_TC_INDEX]);
- p->q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops, sch->handle);
+ p->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, sch->handle);
if (p->q == NULL)
p->q = &noop_qdisc;
diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
index 5948bafa8ce..4dfecb0cba3 100644
--- a/net/sched/sch_fifo.c
+++ b/net/sched/sch_fifo.c
@@ -172,8 +172,7 @@ struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops,
struct Qdisc *q;
int err = -ENOMEM;
- q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- ops, TC_H_MAKE(sch->handle, 1));
+ q = qdisc_create_dflt(sch->dev_queue, ops, TC_H_MAKE(sch->handle, 1));
if (q) {
err = fifo_set_limit(q, limit);
if (err < 0) {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 2aeb3a4386a..5dbb3cd96e5 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -383,6 +383,7 @@ struct Qdisc noop_qdisc = {
.list = LIST_HEAD_INIT(noop_qdisc.list),
.q.lock = __SPIN_LOCK_UNLOCKED(noop_qdisc.q.lock),
.dev_queue = &noop_netdev_queue,
+ .busylock = __SPIN_LOCK_UNLOCKED(noop_qdisc.busylock),
};
EXPORT_SYMBOL(noop_qdisc);
@@ -409,6 +410,7 @@ static struct Qdisc noqueue_qdisc = {
.list = LIST_HEAD_INIT(noqueue_qdisc.list),
.q.lock = __SPIN_LOCK_UNLOCKED(noqueue_qdisc.q.lock),
.dev_queue = &noqueue_netdev_queue,
+ .busylock = __SPIN_LOCK_UNLOCKED(noqueue_qdisc.busylock),
};
@@ -574,10 +576,8 @@ errout:
return ERR_PTR(err);
}
-struct Qdisc * qdisc_create_dflt(struct net_device *dev,
- struct netdev_queue *dev_queue,
- struct Qdisc_ops *ops,
- unsigned int parentid)
+struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
+ struct Qdisc_ops *ops, unsigned int parentid)
{
struct Qdisc *sch;
@@ -682,7 +682,7 @@ static void attach_one_default_qdisc(struct net_device *dev,
struct Qdisc *qdisc;
if (dev->tx_queue_len) {
- qdisc = qdisc_create_dflt(dev, dev_queue,
+ qdisc = qdisc_create_dflt(dev_queue,
&pfifo_fast_ops, TC_H_ROOT);
if (!qdisc) {
printk(KERN_INFO "%s: activation failed\n", dev->name);
@@ -709,7 +709,7 @@ static void attach_default_qdiscs(struct net_device *dev)
dev->qdisc = txq->qdisc_sleeping;
atomic_inc(&dev->qdisc->refcnt);
} else {
- qdisc = qdisc_create_dflt(dev, txq, &mq_qdisc_ops, TC_H_ROOT);
+ qdisc = qdisc_create_dflt(txq, &mq_qdisc_ops, TC_H_ROOT);
if (qdisc) {
qdisc->ops->attach(qdisc);
dev->qdisc = qdisc;
@@ -753,7 +753,8 @@ void dev_activate(struct net_device *dev)
need_watchdog = 0;
netdev_for_each_tx_queue(dev, transition_one_qdisc, &need_watchdog);
- transition_one_qdisc(dev, &dev->rx_queue, NULL);
+ if (dev_ingress_queue(dev))
+ transition_one_qdisc(dev, dev_ingress_queue(dev), NULL);
if (need_watchdog) {
dev->trans_start = jiffies;
@@ -812,7 +813,8 @@ static bool some_qdisc_is_busy(struct net_device *dev)
void dev_deactivate(struct net_device *dev)
{
netdev_for_each_tx_queue(dev, dev_deactivate_queue, &noop_qdisc);
- dev_deactivate_queue(dev, &dev->rx_queue, &noop_qdisc);
+ if (dev_ingress_queue(dev))
+ dev_deactivate_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
dev_watchdog_down(dev);
@@ -838,7 +840,8 @@ void dev_init_scheduler(struct net_device *dev)
{
dev->qdisc = &noop_qdisc;
netdev_for_each_tx_queue(dev, dev_init_scheduler_queue, &noop_qdisc);
- dev_init_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc);
+ if (dev_ingress_queue(dev))
+ dev_init_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
setup_timer(&dev->watchdog_timer, dev_watchdog, (unsigned long)dev);
}
@@ -861,7 +864,8 @@ static void shutdown_scheduler_queue(struct net_device *dev,
void dev_shutdown(struct net_device *dev)
{
netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
- shutdown_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc);
+ if (dev_ingress_queue(dev))
+ shutdown_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
qdisc_destroy(dev->qdisc);
dev->qdisc = &noop_qdisc;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 47496098d35..069c62b7bb3 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1088,7 +1088,7 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
cl->refcnt = 1;
cl->sched = q;
cl->cl_parent = parent;
- cl->qdisc = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ cl->qdisc = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, classid);
if (cl->qdisc == NULL)
cl->qdisc = &noop_qdisc;
@@ -1209,8 +1209,7 @@ hfsc_graft_class(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
if (cl->level > 0)
return -EINVAL;
if (new == NULL) {
- new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
+ new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
cl->cl_common.classid);
if (new == NULL)
new = &noop_qdisc;
@@ -1452,8 +1451,7 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
q->root.cl_common.classid = sch->handle;
q->root.refcnt = 1;
q->root.sched = q;
- q->root.qdisc = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
+ q->root.qdisc = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
sch->handle);
if (q->root.qdisc == NULL)
q->root.qdisc = &noop_qdisc;
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 4be8d04b262..01b519d6c52 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1121,8 +1121,7 @@ static int htb_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
if (cl->level)
return -EINVAL;
if (new == NULL &&
- (new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
+ (new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
cl->common.classid)) == NULL)
return -ENOBUFS;
@@ -1247,8 +1246,7 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg)
return -EBUSY;
if (!cl->level && htb_parent_last_child(cl)) {
- new_q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &pfifo_qdisc_ops,
+ new_q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
cl->parent->common.classid);
last_child = 1;
}
@@ -1302,14 +1300,14 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
struct htb_class *cl = (struct htb_class *)*arg, *parent;
struct nlattr *opt = tca[TCA_OPTIONS];
struct qdisc_rate_table *rtab = NULL, *ctab = NULL;
- struct nlattr *tb[TCA_HTB_RTAB + 1];
+ struct nlattr *tb[__TCA_HTB_MAX];
struct tc_htb_opt *hopt;
/* extract all subattrs from opt attr */
if (!opt)
goto failure;
- err = nla_parse_nested(tb, TCA_HTB_RTAB, opt, htb_policy);
+ err = nla_parse_nested(tb, TCA_HTB_MAX, opt, htb_policy);
if (err < 0)
goto failure;
@@ -1377,7 +1375,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
/* create leaf qdisc early because it uses kmalloc(GFP_KERNEL)
so that can't be used inside of sch_tree_lock
-- thanks to Karlis Peisenieks */
- new_q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ new_q = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops, classid);
sch_tree_lock(sch);
if (parent && !parent->level) {
diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c
index fe91e50f9d9..ecc302f4d2a 100644
--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -56,7 +56,7 @@ static int mq_init(struct Qdisc *sch, struct nlattr *opt)
for (ntx = 0; ntx < dev->num_tx_queues; ntx++) {
dev_queue = netdev_get_tx_queue(dev, ntx);
- qdisc = qdisc_create_dflt(dev, dev_queue, &pfifo_fast_ops,
+ qdisc = qdisc_create_dflt(dev_queue, &pfifo_fast_ops,
TC_H_MAKE(TC_H_MAJ(sch->handle),
TC_H_MIN(ntx + 1)));
if (qdisc == NULL)
diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 6ae251279fc..32690deab5d 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -227,8 +227,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt)
for (i = 0; i < q->bands; i++) {
if (q->queues[i] == &noop_qdisc) {
struct Qdisc *child, *old;
- child = qdisc_create_dflt(qdisc_dev(sch),
- sch->dev_queue,
+ child = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops,
TC_H_MAKE(sch->handle,
i + 1));
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 4714ff162bb..e5593c083a7 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -538,8 +538,7 @@ static int netem_init(struct Qdisc *sch, struct nlattr *opt)
qdisc_watchdog_init(&q->watchdog, sch);
- q->qdisc = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
- &tfifo_qdisc_ops,
+ q->qdisc = qdisc_create_dflt(sch->dev_queue, &tfifo_qdisc_ops,
TC_H_MAKE(sch->handle, 1));
if (!q->qdisc) {
pr_debug("netem: qdisc create failed\n");
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 0748fb1e3a4..b1c95bce33c 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -200,7 +200,7 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt)
for (i=0; i<q->bands; i++) {
if (q->queues[i] == &noop_qdisc) {
struct Qdisc *child, *old;
- child = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ child = qdisc_create_dflt(sch->dev_queue,
&pfifo_qdisc_ops,
TC_H_MAKE(sch->handle, i + 1));
if (child) {
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index feaabc103ce..401af959670 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -241,11 +241,11 @@ __teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res, struct net_device *
}
if (neigh_event_send(n, skb_res) == 0) {
int err;
+ char haddr[MAX_ADDR_LEN];
- read_lock(&n->lock);
- err = dev_hard_header(skb, dev, ntohs(skb->protocol),
- n->ha, NULL, skb->len);
- read_unlock(&n->lock);
+ neigh_ha_snapshot(haddr, n, dev);
+ err = dev_hard_header(skb, dev, ntohs(skb->protocol), haddr,
+ NULL, skb->len);
if (err < 0) {
neigh_release(n);