1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2018 Facebook */
 3#include <linux/bpf.h>
 4#include <bpf/bpf_helpers.h>
 5#include "bpf_legacy.h"
 6
 7int _version SEC("version") = 1;
 8
 9struct ipv_counts {
10	unsigned int v4;
11	unsigned int v6;
12};
13
14struct bpf_map_def SEC("maps") btf_map = {
15	.type = BPF_MAP_TYPE_ARRAY,
16	.key_size = sizeof(int),
17	.value_size = sizeof(struct ipv_counts),
18	.max_entries = 4,
19};
20
21BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts);
22
23__attribute__((noinline))
24int test_long_fname_2(void)
25{
26	struct ipv_counts *counts;
27	int key = 0;
28
29	counts = bpf_map_lookup_elem(&btf_map, &key);
30	if (!counts)
31		return 0;
32
33	counts->v6++;
34
35	return 0;
36}
37
38__attribute__((noinline))
39int test_long_fname_1(void)
40{
41	return test_long_fname_2();
42}
43
44SEC("dummy_tracepoint")
45int _dummy_tracepoint(void *arg)
46{
47	return test_long_fname_1();
48}
49
50char _license[] SEC("license") = "GPL";