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

Jason Wang
2018-09-06T04:05:22Z

This will allow adding batch flushing on top.

Signed-off-by: Jason Wang <jasowang at redhat.com>
---
 drivers/net/tun.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 21b125020b3b..ff1cbf3ebd50 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1646,7 +1646,6 @@ static u32 tun_do_xdp(struct tun_struct *tun,
 	switch (act) {
 	case XDP_REDIRECT:
 		*err = xdp_do_redirect(tun->dev, xdp, xdp_prog);
-		xdp_do_flush_map();
 		if (*err)
 			break;
 		goto out;
@@ -1735,6 +1734,9 @@ static struct sk_buff *tun_build_skb(struct tun_struct
*tun,
 		act = tun_do_xdp(tun, tfile, xdp_prog, &xdp, &err);
 		if (err)
 			goto err_xdp;
+
+		if (act == XDP_REDIRECT)
+			xdp_do_flush_map();
 		if (act != XDP_PASS)
 			goto out;

--
2.17.1