This is a note to let you know that I've just added the patch titled tun: fix missing dropped counter in tun_xdp_act to the 6.7-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: tun-fix-missing-dropped-counter-in-tun_xdp_act.patch and it can be found in the queue-6.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c8a46f874ec240aa00fd746cab6f00c704ef999a Author: Yunjian Wang <wangyunjian@xxxxxxxxxx> Date: Fri Jan 19 18:22:35 2024 +0800 tun: fix missing dropped counter in tun_xdp_act [ Upstream commit 5744ba05e7c4bff8fec133dd0f9e51ddffba92f5 ] The commit 8ae1aff0b331 ("tuntap: split out XDP logic") includes dropped counter for XDP_DROP, XDP_ABORTED, and invalid XDP actions. Unfortunately, that commit missed the dropped counter when error occurs during XDP_TX and XDP_REDIRECT actions. This patch fixes this issue. Fixes: 8ae1aff0b331 ("tuntap: split out XDP logic") Signed-off-by: Yunjian Wang <wangyunjian@xxxxxxxxxx> Reviewed-by: Willem de Bruijn <willemb@xxxxxxxxxx> Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/tun.c b/drivers/net/tun.c index afa5497f7c35..237fef557ba5 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1630,13 +1630,17 @@ 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); - if (err) + if (err) { + dev_core_stats_rx_dropped_inc(tun->dev); return err; + } break; case XDP_TX: err = tun_xdp_tx(tun->dev, xdp); - if (err < 0) + if (err < 0) { + dev_core_stats_rx_dropped_inc(tun->dev); return err; + } break; case XDP_PASS: break;