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