[PATCH net-next v2 3/4] ip_tunnel: Fix route fl4 init in ip_md_tunnel_xmit

[wenxu]

From: wenxu <we...@ucloud.cn>

Init the gre_key from tuninfo->key.tun_id and init the mark
from the skb->mark, set the oif to zero in the collect metadata 
mode.

Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel")
Signed-off-by: wenxu <we...@ucloud.cn>
---
 net/ipv4/ip_tunnel.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 6233a7c..3a15ee1 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -582,8 +582,9 @@ void ip_md_tunnel_xmit(struct sk_buff *skb, struct 
net_device *dev,
                else if (skb->protocol == htons(ETH_P_IPV6))
                        tos = ipv6_get_dsfield((const struct ipv6hdr 
*)inner_iph);
        }
-       ip_tunnel_init_flow(&fl4, proto, key->u.ipv4.dst, key->u.ipv4.src, 0,
-                           RT_TOS(tos), tunnel->parms.link, tunnel->fwmark);
+       ip_tunnel_init_flow(&fl4, proto, key->u.ipv4.dst, key->u.ipv4.src,
+                           tunnel_id_to_key32(key->tun_id), RT_TOS(tos),
+                           0, skb->mark);
        if (tunnel->encap.type != TUNNEL_ENCAP_NONE)
                goto tx_error;
 
-- 
1.8.3.1