net: ipv6: Dont add RT6_LOOKUP_F_IFACE flag if saddr set

[cascardo/linux.git] / net / ipv6 / route.c

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index be5d287..946880a 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1193,14 +1193,16 @@ struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
                                    struct flowi6 *fl6)
 {
        int flags = 0;
+       bool any_src;
 
        fl6->flowi6_iif = LOOPBACK_IFINDEX;
 
+       any_src = ipv6_addr_any(&fl6->saddr);
        if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl6->daddr) ||
-           fl6->flowi6_oif)
+           (fl6->flowi6_oif && any_src))
                flags |= RT6_LOOKUP_F_IFACE;
 
-       if (!ipv6_addr_any(&fl6->saddr))
+       if (!any_src)
                flags |= RT6_LOOKUP_F_HAS_SADDR;
        else if (sk)
                flags |= rt6_srcprefs2flags(inet6_sk(sk)->srcprefs);