mutex_unlock(&lock);
}
+static int dst_fetch_ha(struct dst_entry *dst, struct rdma_dev_addr *addr)
+{
+ struct neighbour *n;
+ int ret;
+
+ rcu_read_lock();
+ n = dst_get_neighbour_noref(dst);
+ if (!n || !(n->nud_state & NUD_VALID)) {
+ if (n)
+ neigh_event_send(n, NULL);
+ ret = -ENODATA;
+ } else {
+ ret = rdma_copy_addr(addr, dst->dev, n->ha);
+ }
+ rcu_read_unlock();
+
+ return ret;
+}
+
static int addr4_resolve(struct sockaddr_in *src_in,
struct sockaddr_in *dst_in,
struct rdma_dev_addr *addr)
__be32 src_ip = src_in->sin_addr.s_addr;
__be32 dst_ip = dst_in->sin_addr.s_addr;
struct rtable *rt;
- struct neighbour *neigh;
struct flowi4 fl4;
int ret;
goto put;
}
- neigh = neigh_lookup(&arp_tbl, &rt->rt_gateway, rt->dst.dev);
- if (!neigh || !(neigh->nud_state & NUD_VALID)) {
- rcu_read_lock();
- neigh_event_send(dst_get_neighbour_noref(&rt->dst), NULL);
- rcu_read_unlock();
- ret = -ENODATA;
- if (neigh)
- goto release;
- goto put;
- }
-
- ret = rdma_copy_addr(addr, neigh->dev, neigh->ha);
-release:
- neigh_release(neigh);
+ ret = dst_fetch_ha(&rt->dst, addr);
put:
ip_rt_put(rt);
out:
struct rdma_dev_addr *addr)
{
struct flowi6 fl6;
- struct neighbour *neigh;
struct dst_entry *dst;
int ret;
goto put;
}
- rcu_read_lock();
- neigh = dst_get_neighbour_noref(dst);
- if (!neigh || !(neigh->nud_state & NUD_VALID)) {
- if (neigh)
- neigh_event_send(neigh, NULL);
- ret = -ENODATA;
- } else {
- ret = rdma_copy_addr(addr, dst->dev, neigh->ha);
- }
- rcu_read_unlock();
+ ret = dst_fetch_ha(dst, addr);
put:
dst_release(dst);
return ret;