From 736775d06bac60d7a353e405398b48b2bd8b1e54 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Thu, 2 Jan 2020 17:47:51 +0100 Subject: wireguard: socket: mark skbs as not on list when receiving via gro Certain drivers will pass gro skbs to udp, at which point the udp driver simply iterates through them and passes them off to encap_rcv, which is where we pick up. At the moment, we're not attempting to coalesce these into bundles, but we also don't want to wind up having cascaded lists of skbs treated separately. The right behavior here, then, is to just mark each incoming one as not on a list. This can be seen in practice, for example, with Qualcomm's rmnet_perf driver. Signed-off-by: Jason A. Donenfeld Tested-by: Yaroslav Furman Signed-off-by: David S. Miller --- drivers/net/wireguard/socket.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/wireguard') diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c index c46256d0d81c..262f3b5c819d 100644 --- a/drivers/net/wireguard/socket.c +++ b/drivers/net/wireguard/socket.c @@ -333,6 +333,7 @@ static int wg_receive(struct sock *sk, struct sk_buff *skb) wg = sk->sk_user_data; if (unlikely(!wg)) goto err; + skb_mark_not_on_list(skb); wg_packet_receive(wg, skb); return 0; -- cgit v1.2.3-59-g8ed1b