From e8407fdeb9a6866784e249881f6c786a0835faba Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Tue, 21 Jul 2020 23:46:02 -0700 Subject: 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 Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20200722064603.3350758-10-andriin@fb.com --- drivers/net/virtio_net.c | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'drivers/net/virtio_net.c') 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; } -- cgit v1.2.3