[PATCH net-next V2 07/11] tuntap: move XDP flushing out of tun_do_xdp()

[Jason Wang]

This will allow adding batch flushing on top.

Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
---
 drivers/net/tun.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 14fe94098180..3ae539374f6b 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1660,7 +1660,6 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog,
 	switch (act) {
 	case XDP_REDIRECT:
 		err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
-		xdp_do_flush_map();
 		if (err)
 			return err;
 		break;
@@ -1749,6 +1748,8 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
 		err = tun_xdp_act(tun, xdp_prog, &xdp, act);
 		if (err < 0)
 			goto err_xdp;
+		if (err == XDP_REDIRECT)
+			xdp_do_flush_map();
 		if (err != XDP_PASS)
 			goto out;
 
-- 
2.17.1