1// SPDX-License-Identifier: GPL-2.0
 2
 3#include <linux/bpf.h>
 4#include <bpf/bpf_helpers.h>
 5
 6SEC("?freplace")
 7long changes_pkt_data(struct __sk_buff *sk)
 8{
 9	return bpf_skb_pull_data(sk, 0);
10}
11
12SEC("?freplace")
13long does_not_change_pkt_data(struct __sk_buff *sk)
14{
15	return 0;
16}
17
18char _license[] SEC("license") = "GPL";