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| author | Andrii Nakryiko <andriin@fb.com> | 2020-07-21 23:46:02 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-07-25 20:37:02 -0700 |
| commit | e8407fdeb9a6866784e249881f6c786a0835faba (patch) | |
| tree | 970b9373fc9ef7dcfdb3edb2a9948a842c5eb50f /drivers/net/xen-netfront.c | |
| parent | fe48230cf2ae27c9e3b96d29908e22e2926fd1ab (diff) | |
| download | linux-e8407fdeb9a6866784e249881f6c786a0835faba.tar.gz | |
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/xen-netfront.c')
| -rw-r--r-- | drivers/net/xen-netfront.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index a63e550c370e..458be6882b98 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1480,32 +1480,11 @@ static int xennet_xdp_set(struct net_device *dev, struct bpf_prog *prog, return 0; } -static u32 xennet_xdp_query(struct net_device *dev) -{ - unsigned int num_queues = dev->real_num_tx_queues; - struct netfront_info *np = netdev_priv(dev); - const struct bpf_prog *xdp_prog; - struct netfront_queue *queue; - unsigned int i; - - for (i = 0; i < num_queues; ++i) { - queue = &np->queues[i]; - xdp_prog = rtnl_dereference(queue->xdp_prog); - if (xdp_prog) - return xdp_prog->aux->id; - } - - return 0; -} - static int xennet_xdp(struct net_device *dev, struct netdev_bpf *xdp) { switch (xdp->command) { case XDP_SETUP_PROG: return xennet_xdp_set(dev, xdp->prog, xdp->extack); - case XDP_QUERY_PROG: - xdp->prog_id = xennet_xdp_query(dev); - return 0; default: return -EINVAL; } |