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authorDavid S. Miller <davem@davemloft.net>2012-07-03 08:57:45 +0400
committerDavid S. Miller <davem@davemloft.net>2012-07-05 12:09:06 +0400
commitdbedbe6d56e8944f220e34deb9ebdf4bec2a2afd (patch)
tree1754f9228cb23d4a0098b4a4b5590f202bf29828 /net/sched/sch_teql.c
parentf894cbf847c9bea1955095bf37aca6c050553167 (diff)
downloadlinux-dbedbe6d56e8944f220e34deb9ebdf4bec2a2afd.tar.xz
sch_teql: Convert over to dev_neigh_lookup_skb().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_teql.c')
-rw-r--r--net/sched/sch_teql.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index ca0c29695d51..474167162947 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -67,7 +67,6 @@ struct teql_master {
struct teql_sched_data {
struct Qdisc *next;
struct teql_master *m;
- struct neighbour *ncache;
struct sk_buff_head q;
};
@@ -134,7 +133,6 @@ teql_reset(struct Qdisc *sch)
skb_queue_purge(&dat->q);
sch->q.qlen = 0;
- teql_neigh_release(xchg(&dat->ncache, NULL));
}
static void
@@ -166,7 +164,6 @@ teql_destroy(struct Qdisc *sch)
}
}
skb_queue_purge(&dat->q);
- teql_neigh_release(xchg(&dat->ncache, NULL));
break;
}
@@ -225,21 +222,25 @@ static int teql_qdisc_init(struct Qdisc *sch, struct nlattr *opt)
static int
__teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res,
struct net_device *dev, struct netdev_queue *txq,
- struct neighbour *mn)
+ struct dst_entry *dst)
{
- struct teql_sched_data *q = qdisc_priv(txq->qdisc);
- struct neighbour *n = q->ncache;
+ struct neighbour *n;
+ int err = 0;
- if (mn->tbl == NULL)
- return -EINVAL;
- if (n && n->tbl == mn->tbl &&
- memcmp(n->primary_key, mn->primary_key, mn->tbl->key_len) == 0) {
- atomic_inc(&n->refcnt);
- } else {
- n = __neigh_lookup_errno(mn->tbl, mn->primary_key, dev);
- if (IS_ERR(n))
- return PTR_ERR(n);
+ n = dst_neigh_lookup_skb(dst, skb);
+ if (!n)
+ return -ENOENT;
+
+ if (dst->dev != dev) {
+ struct neighbour *mn;
+
+ mn = __neigh_lookup_errno(n->tbl, n->primary_key, dev);
+ neigh_release(n);
+ if (IS_ERR(mn))
+ return PTR_ERR(mn);
+ n = mn;
}
+
if (neigh_event_send(n, skb_res) == 0) {
int err;
char haddr[MAX_ADDR_LEN];
@@ -248,15 +249,13 @@ __teql_resolve(struct sk_buff *skb, struct sk_buff *skb_res,
err = dev_hard_header(skb, dev, ntohs(skb->protocol), haddr,
NULL, skb->len);
- if (err < 0) {
- neigh_release(n);
- return -EINVAL;
- }
- teql_neigh_release(xchg(&q->ncache, n));
- return 0;
+ if (err < 0)
+ err = -EINVAL;
+ } else {
+ err = (skb_res == NULL) ? -EAGAIN : 1;
}
neigh_release(n);
- return (skb_res == NULL) ? -EAGAIN : 1;
+ return err;
}
static inline int teql_resolve(struct sk_buff *skb,
@@ -265,7 +264,6 @@ static inline int teql_resolve(struct sk_buff *skb,
struct netdev_queue *txq)
{
struct dst_entry *dst = skb_dst(skb);
- struct neighbour *mn;
int res;
if (txq->qdisc == &noop_qdisc)
@@ -275,8 +273,7 @@ static inline int teql_resolve(struct sk_buff *skb,
return 0;
rcu_read_lock();
- mn = dst_get_neighbour_noref(dst);
- res = mn ? __teql_resolve(skb, skb_res, dev, txq, mn) : 0;
+ res = __teql_resolve(skb, skb_res, dev, txq, dst);
rcu_read_unlock();
return res;