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authorJason A. Donenfeld <Jason@zx2c4.com>2020-01-02 17:47:51 +0100
committerDavid S. Miller <davem@davemloft.net>2020-01-05 14:08:32 -0800
commit937f24d132a86b82a9d43ad4b9a7e5a627ed630f (patch)
tree73a05cab21a3f47181b261293b592f3f4abcc087 /drivers/net
parentff33c59320444d9f5a005598480b74903933963a (diff)
downloadwireguard-linux-trimmed-937f24d132a86b82a9d43ad4b9a7e5a627ed630f.tar.gz
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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 <Jason@zx2c4.com> Tested-by: Yaroslav Furman <yaro330@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireguard/socket.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c
index c46256d..262f3b5 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;