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authorDavid S. Miller <davem@davemloft.net>2011-07-17 23:09:49 -0700
committerDavid S. Miller <davem@davemloft.net>2011-07-17 23:11:35 -0700
commit69cce1d1404968f78b177a0314f5822d5afdbbfb (patch)
tree26223264fd69ea8078d0013fd5a76eb7aeb04c12 /net/core
parent9cbb7ecbcff85077bb12301aaf4c9b5a56c5993d (diff)
net: Abstract dst->neighbour accesses behind helpers.
dst_{get,set}_neighbour() Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dst.c10
-rw-r--r--net/core/neighbour.c7
2 files changed, 9 insertions, 8 deletions
diff --git a/net/core/dst.c b/net/core/dst.c
index 4aacc14936a..14b33baf073 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -171,7 +171,7 @@ void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
dst_init_metrics(dst, dst_default_metrics, true);
dst->expires = 0UL;
dst->path = dst;
- dst->neighbour = NULL;
+ dst->_neighbour = NULL;
#ifdef CONFIG_XFRM
dst->xfrm = NULL;
#endif
@@ -229,11 +229,11 @@ struct dst_entry *dst_destroy(struct dst_entry * dst)
smp_rmb();
again:
- neigh = dst->neighbour;
+ neigh = dst->_neighbour;
child = dst->child;
if (neigh) {
- dst->neighbour = NULL;
+ dst->_neighbour = NULL;
neigh_release(neigh);
}
@@ -363,8 +363,8 @@ static void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
dst->dev = dev_net(dst->dev)->loopback_dev;
dev_hold(dst->dev);
dev_put(dev);
- if (dst->neighbour && dst->neighbour->dev == dev) {
- dst->neighbour->dev = dst->dev;
+ if (dst->_neighbour && dst->_neighbour->dev == dev) {
+ dst->_neighbour->dev = dst->dev;
dev_hold(dst->dev);
dev_put(dev);
}
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index cefb8e52615..8fab9b0bb20 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1153,11 +1153,12 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
while (neigh->nud_state & NUD_VALID &&
(skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
- struct neighbour *n1 = neigh;
+ struct dst_entry *dst = skb_dst(skb);
+ struct neighbour *n2, *n1 = neigh;
write_unlock_bh(&neigh->lock);
/* On shaper/eql skb->dst->neighbour != neigh :( */
- if (skb_dst(skb) && skb_dst(skb)->neighbour)
- n1 = skb_dst(skb)->neighbour;
+ if (dst && (n2 = dst_get_neighbour(dst)) != NULL)
+ n1 = n2;
n1->output(n1, skb);
write_lock_bh(&neigh->lock);
}