ipv6: Kill ndisc_get_neigh() inline helper.

It's only used in net/ipv6/route.c and the NULL device check is
superfluous for all of the existing call sites.

Just expand the __ndisc_lookup_errno() call at each location.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 12 deletions

diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 62beeb97c4b1..c977c377c015 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -145,13 +145,4 @@ int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl,
 extern void                     inet6_ifinfo_notify(int event,
                                                     struct inet6_dev *idev);
 
-static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, const struct in6_addr *addr)
-{
-
-        if (dev)
-                return __neigh_lookup_errno(&nd_tbl, addr, dev);
-
-        return ERR_PTR(-ENODEV);
-}
-
 #endif
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 897a13f7c6b1..1138b0a5566d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -744,7 +744,8 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
 #endif
 
         retry:
-                neigh = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
+                neigh = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway,
+                                             rt->rt6i_dev);
                 if (IS_ERR(neigh)) {
                         struct net *net = dev_net(rt->rt6i_dev);
                         int saved_rt_min_interval =
@@ -1085,7 +1086,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
         if (neigh)
                 neigh_hold(neigh);
         else {
-                neigh = ndisc_get_neigh(dev, addr);
+                neigh = __neigh_lookup_errno(&nd_tbl, addr, dev);
                 if (IS_ERR(neigh))
                         neigh = NULL;
         }
@@ -2082,7 +2083,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
                 rt->rt6i_flags |= RTF_ANYCAST;
         else
                 rt->rt6i_flags |= RTF_LOCAL;
-        neigh = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
+        neigh = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway, rt->rt6i_dev);
         if (IS_ERR(neigh)) {
                 dst_free(&rt->dst);