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netkit: Remove location field in netkit_link

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Use attach_type in bpf_link to replace the location field, and
remove location field in netkit_link.

Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20250710032038.888700-8-chen.dylane@linux.dev
This commit is contained in:
Tao Chen 2025-07-10 11:20:38 +08:00 committed by Andrii Nakryiko
parent 0eeeebdcc5
commit 601a3956fe
1 changed files with 3 additions and 5 deletions
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8
drivers/net/netkit.c
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@ -32,7 +32,6 @@ struct netkit {
struct netkit_link {
struct bpf_link link;
struct net_device *dev;
u32 location;
};
static __always_inline int
@ -733,8 +732,8 @@ static void netkit_link_fdinfo(const struct bpf_link *link, struct seq_file *seq
seq_printf(seq, "ifindex:\t%u\n", ifindex);
seq_printf(seq, "attach_type:\t%u (%s)\n",
nkl->location,
nkl->location == BPF_NETKIT_PRIMARY ? "primary" : "peer");
link->attach_type,
link->attach_type == BPF_NETKIT_PRIMARY ? "primary" : "peer");
}
static int netkit_link_fill_info(const struct bpf_link *link,
@ -749,7 +748,7 @@ static int netkit_link_fill_info(const struct bpf_link *link,
rtnl_unlock();
info->netkit.ifindex = ifindex;
info->netkit.attach_type = nkl->location;
info->netkit.attach_type = link->attach_type;
return 0;
}
@ -776,7 +775,6 @@ static int netkit_link_init(struct netkit_link *nkl,
{
bpf_link_init(&nkl->link, BPF_LINK_TYPE_NETKIT,
&netkit_link_lops, prog, attr->link_create.attach_type);
nkl->location = attr->link_create.attach_type;
nkl->dev = dev;
return bpf_link_prime(&nkl->link, link_primer);
}