neigh: allow admin to set NUD_STALE

[mirror_ubuntu-zesty-kernel.git] / net / core / neighbour.c

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index cf26e04c4046ded822a1e449e5a6c036ca2af38e..2ae929f9bd06f3be98cbd1add881641a0df1d7a4 100644 (file)
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1148,7 +1148,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
                        } else
                                goto out;
                } else {
-                       if (lladdr == neigh->ha && new == NUD_STALE)
+                       if (lladdr == neigh->ha && new == NUD_STALE &&
+                           !(flags & NEIGH_UPDATE_F_ADMIN))
                                new = old;
                }
        }