net: common metrics init helper for dst_entry

ipv4 and ipv6 both use refcounted metrics if FIB entries have metrics set.
Move the common initialization code to a helper and use for both protocols.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 5 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 048919713f4e..8ccbc8f2c2cc 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1528,11 +1528,8 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr,
                         rt->rt_gateway = nh->nh_gw;
                         rt->rt_uses_gateway = 1;
                 }
-                dst_init_metrics(&rt->dst, fi->fib_metrics->metrics, true);
-                if (fi->fib_metrics != &dst_default_metrics) {
-                        rt->dst._metrics |= DST_METRICS_REFCOUNTED;
-                        refcount_inc(&fi->fib_metrics->refcnt);
-                }
+                ip_dst_init_metrics(&rt->dst, fi->fib_metrics);
+
 #ifdef CONFIG_IP_ROUTE_CLASSID
                 rt->dst.tclassid = nh->nh_tclassid;
 #endif