IPv6: use ipv6_addr_copy() in ip6_route_redirect()

Change ip6_route_redirect() to use ipv6_addr_copy().
Signed-off-by: NBrian Haley <brian.haley@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/route.c

@@ -1471,9 +1471,10 @@ static struct rt6_info *ip6_route_redirect(struct in6_addr *dest,
 				},
 			},
 		},
-		.gateway = *gateway,
 	};
 
+	ipv6_addr_copy(&rdfl.gateway, gateway);
+
 	if (rt6_need_strict(dest))
 		flags |= RT6_LOOKUP_F_IFACE;