net: Do delayed neigh confirmation.
When a dst_confirm() happens, mark the confirmation as pending in the
dst. Then on the next packet out, when we have the neigh in-hand, do
the update.
This removes the dependency in dst_confirm() of dst's having an
attached neigh.
While we're here, remove the explicit 'dst' NULL check, all except 2
or 3 call sites ensure it's not NULL. So just fix those cases up.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index a233a7c..c94e4aa 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -125,7 +125,7 @@
rcu_read_lock();
neigh = dst_get_neighbour_noref(dst);
if (neigh) {
- int res = neigh_output(neigh, skb);
+ int res = dst_neigh_output(dst, neigh, skb);
rcu_read_unlock();
return res;