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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/netdevsim
parentselftests/bpf: Add BPF XDP link selftests (diff)
downloadlinux-dev-e8407fdeb9a6866784e249881f6c786a0835faba.tar.xz
linux-dev-e8407fdeb9a6866784e249881f6c786a0835faba.zip
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/netdevsim')
-rw-r--r--drivers/net/netdevsim/bpf.c4
-rw-r--r--drivers/net/netdevsim/netdevsim.h2
2 files changed, 1 insertions, 5 deletions
diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
index 0b362b8dac17..2e90512f3bbe 100644
--- a/drivers/net/netdevsim/bpf.c
+++ b/drivers/net/netdevsim/bpf.c
@@ -551,10 +551,6 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
ASSERT_RTNL();
switch (bpf->command) {
- case XDP_QUERY_PROG:
- return xdp_attachment_query(&ns->xdp, bpf);
- case XDP_QUERY_PROG_HW:
- return xdp_attachment_query(&ns->xdp_hw, bpf);
case XDP_SETUP_PROG:
err = nsim_setup_prog_checks(ns, bpf);
if (err)
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index d164052e0393..284f7092241d 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -121,7 +121,7 @@ static inline void nsim_bpf_uninit(struct netdevsim *ns)
static inline int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
{
- return bpf->command == XDP_QUERY_PROG ? 0 : -EOPNOTSUPP;
+ return -EOPNOTSUPP;
}
static inline int nsim_bpf_disable_tc(struct netdevsim *ns)