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authorDavid S. Miller <davem@davemloft.net>2011-07-18 00:40:17 -0700
committerDavid S. Miller <davem@davemloft.net>2011-07-18 00:40:17 -0700
commitd3aaeb38c40e5a6c08dd31a1b64da65c4352be36 (patch)
tree1c17b41d11edc7a7b3477a294cba440f2a14796c /net/decnet/dn_route.c
parent69cce1d1404968f78b177a0314f5822d5afdbbfb (diff)
downloadlinux-d3aaeb38c40e5a6c08dd31a1b64da65c4352be36.tar.bz2
net: Add ->neigh_lookup() operation to dst_ops
In the future dst entries will be neigh-less. In that environment we need to have an easy transition point for current users of dst->neighbour outside of the packet output fast path. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/dn_route.c')
-rw-r--r--net/decnet/dn_route.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 9bd45fcb3b8e..43450c100226 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -116,6 +116,7 @@ static void dn_dst_destroy(struct dst_entry *);
static struct dst_entry *dn_dst_negative_advice(struct dst_entry *);
static void dn_dst_link_failure(struct sk_buff *);
static void dn_dst_update_pmtu(struct dst_entry *dst, u32 mtu);
+static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst, const void *daddr);
static int dn_route_input(struct sk_buff *);
static void dn_run_flush(unsigned long dummy);
@@ -139,6 +140,7 @@ static struct dst_ops dn_dst_ops = {
.negative_advice = dn_dst_negative_advice,
.link_failure = dn_dst_link_failure,
.update_pmtu = dn_dst_update_pmtu,
+ .neigh_lookup = dn_dst_neigh_lookup,
};
static void dn_dst_destroy(struct dst_entry *dst)
@@ -827,6 +829,11 @@ static unsigned int dn_dst_default_mtu(const struct dst_entry *dst)
return dst->dev->mtu;
}
+static struct neighbour *dn_dst_neigh_lookup(const struct dst_entry *dst, const void *daddr)
+{
+ return __neigh_lookup_errno(&dn_neigh_table, daddr, dst->dev);
+}
+
static int dn_rt_set_next_hop(struct dn_route *rt, struct dn_fib_res *res)
{
struct dn_fib_info *fi = res->fi;