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authorAndrii Nakryiko <andriin@fb.com>2020-07-21 23:46:02 -0700
committerAlexei Starovoitov <ast@kernel.org>2020-07-25 20:37:02 -0700
commite8407fdeb9a6866784e249881f6c786a0835faba (patch)
tree970b9373fc9ef7dcfdb3edb2a9948a842c5eb50f /drivers/net/virtio_net.c
parentfe48230cf2ae27c9e3b96d29908e22e2926fd1ab (diff)
bpf, xdp: Remove XDP_QUERY_PROG and XDP_QUERY_PROG_HW XDP commands
Now that BPF program/link management is centralized in generic net_device code, kernel code never queries program id from drivers, so XDP_QUERY_PROG/XDP_QUERY_PROG_HW commands are unnecessary. This patch removes all the implementations of those commands in kernel, along the xdp_attachment_query(). This patch was compile-tested on allyesconfig. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200722064603.3350758-10-andriin@fb.com
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ba38765dc490..6fa8fe5ef160 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2490,28 +2490,11 @@ err:
return err;
}
-static u32 virtnet_xdp_query(struct net_device *dev)
-{
- struct virtnet_info *vi = netdev_priv(dev);
- const struct bpf_prog *xdp_prog;
- int i;
-
- for (i = 0; i < vi->max_queue_pairs; i++) {
- xdp_prog = rtnl_dereference(vi->rq[i].xdp_prog);
- if (xdp_prog)
- return xdp_prog->aux->id;
- }
- return 0;
-}
-
static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return virtnet_xdp_set(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = virtnet_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}