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authorAndrii Nakryiko <andriin@fb.com>2020-07-22 09:46:02 +0300
committerAlexei Starovoitov <ast@kernel.org>2020-07-26 06:37:02 +0300
commite8407fdeb9a6866784e249881f6c786a0835faba (patch)
tree970b9373fc9ef7dcfdb3edb2a9948a842c5eb50f /drivers/net/hyperv/netvsc_bpf.c
parentfe48230cf2ae27c9e3b96d29908e22e2926fd1ab (diff)
downloadlinux-e8407fdeb9a6866784e249881f6c786a0835faba.tar.xz
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/hyperv/netvsc_bpf.c')
-rw-r--r--drivers/net/hyperv/netvsc_bpf.c21
1 files changed, 1 insertions, 20 deletions
diff --git a/drivers/net/hyperv/netvsc_bpf.c b/drivers/net/hyperv/netvsc_bpf.c
index 8e4141552423..440486d9c999 100644
--- a/drivers/net/hyperv/netvsc_bpf.c
+++ b/drivers/net/hyperv/netvsc_bpf.c
@@ -163,16 +163,6 @@ int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog)
return ret;
}
-static u32 netvsc_xdp_query(struct netvsc_device *nvdev)
-{
- struct bpf_prog *prog = netvsc_xdp_get(nvdev);
-
- if (prog)
- return prog->aux->id;
-
- return 0;
-}
-
int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
{
struct net_device_context *ndevctx = netdev_priv(dev);
@@ -182,12 +172,7 @@ int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
int ret;
if (!nvdev || nvdev->destroy) {
- if (bpf->command == XDP_QUERY_PROG) {
- bpf->prog_id = 0;
- return 0; /* Query must always succeed */
- } else {
- return -ENODEV;
- }
+ return -ENODEV;
}
switch (bpf->command) {
@@ -208,10 +193,6 @@ int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
return ret;
- case XDP_QUERY_PROG:
- bpf->prog_id = netvsc_xdp_query(nvdev);
- return 0;
-
default:
return -EINVAL;
}