diff options
| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2018-06-05 13:55:45 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-06-05 14:03:16 +0200 |
| commit | 42421a56541a3b0fb6656406b657ad4686cdaaeb (patch) | |
| tree | 37dd621efcbd4d793b1332a23355d12f3a45bdc8 /drivers | |
| parent | 16ec025aa5077144747c97a1e40635f547457a95 (diff) | |
| download | linux-stable-42421a56541a3b0fb6656406b657ad4686cdaaeb.tar.gz linux-stable-42421a56541a3b0fb6656406b657ad4686cdaaeb.tar.bz2 linux-stable-42421a56541a3b0fb6656406b657ad4686cdaaeb.zip | |
tun: remove ndo_xdp_flush call tun_xdp_flush
Remove the ndo_xdp_flush call implementation tun_xdp_flush
as no callers of ndo_xdp_flush are left.
The tun drivers XDP_TX implementation also used tun_xdp_flush (and
tun_xdp_xmit). This is easily solved by passing the XDP_XMIT_FLUSH
flag to tun_xdp_xmit in tun_xdp_tx.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/tun.c | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d82a05fb0594..ef09224496e8 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1347,26 +1347,7 @@ static int tun_xdp_tx(struct net_device *dev, struct xdp_buff *xdp) if (unlikely(!frame)) return -EOVERFLOW; - return tun_xdp_xmit(dev, 1, &frame, 0); -} - -static void tun_xdp_flush(struct net_device *dev) -{ - struct tun_struct *tun = netdev_priv(dev); - struct tun_file *tfile; - u32 numqueues; - - rcu_read_lock(); - - numqueues = READ_ONCE(tun->numqueues); - if (!numqueues) - goto out; - - tfile = rcu_dereference(tun->tfiles[smp_processor_id() % - numqueues]); - __tun_xdp_flush_tfile(tfile); -out: - rcu_read_unlock(); + return tun_xdp_xmit(dev, 1, &frame, XDP_XMIT_FLUSH); } static const struct net_device_ops tap_netdev_ops = { @@ -1387,7 +1368,6 @@ static const struct net_device_ops tap_netdev_ops = { .ndo_get_stats64 = tun_net_get_stats64, .ndo_bpf = tun_xdp, .ndo_xdp_xmit = tun_xdp_xmit, - .ndo_xdp_flush = tun_xdp_flush, }; static void tun_flow_init(struct tun_struct *tun) @@ -1706,7 +1686,6 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, alloc_frag->offset += buflen; if (tun_xdp_tx(tun->dev, &xdp)) goto err_redirect; - tun_xdp_flush(tun->dev); rcu_read_unlock(); preempt_enable(); return NULL; |