1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 5e3685c5c407..9084055a81a4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1613,7 +1613,7 @@ static void rt_set_nexthop(struct rtable *rt, struct fib_result *res, u32 itag)
                        sizeof(rt->u.dst.metrics));
                 if (fi->fib_mtu == 0) {
                         rt->u.dst.metrics[RTAX_MTU-1] = rt->u.dst.dev->mtu;
-                        if (rt->u.dst.metrics[RTAX_LOCK-1] & (1 << RTAX_MTU) &&
+                        if (dst_metric_locked(&rt->u.dst, RTAX_MTU) &&
                             rt->rt_gateway != rt->rt_dst &&
                             rt->u.dst.dev->mtu > 576)
                                 rt->u.dst.metrics[RTAX_MTU-1] = 576;