[PATCH net-next 2/3] net: ipgre: make erspan_rcv() return PACKET_NEXT

[menglong8.dong@gmail.com]

From: Menglong Dong <imagedong@tencent.com>

PACKET_NEXT is returned in ipgre_rcv() when no tunnel device found. To
report skb drop reasons, we make erspan_rcv() the same way. Therefore,
we can know that skb is dropped out of tunnel device's absence when
PACKET_NEXT is returned.

Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Reviewed-by: Biao Jiang <benbjiang@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
---
 net/ipv4/ip_gre.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 99db2e41ed10..b1579d8374fd 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -341,7 +341,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 		ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);
 		return PACKET_RCVD;
 	}
-	return PACKET_REJECT;
+	return PACKET_NEXT;
 
 drop:
 	kfree_skb(skb);
-- 
2.35.1