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
7 struct ipv_counts {
8 unsigned int v4;
9 unsigned int v6;
10 };
11
12 struct {
13 __uint(type, BPF_MAP_TYPE_ARRAY);
14 __uint(max_entries, 4);
15 __type(key, int);
16 __type(value, struct ipv_counts);
17 } btf_map SEC(".maps");
18
19 __attribute__((noinline))
20 int test_long_fname_2(void)
21 {
22 struct ipv_counts *counts;
23 int key = 0;
24
25 counts = bpf_map_lookup_elem(&btf_map, &key);
26 if (!counts)
27 return 0;
28
29 counts->v6++;
30
31 return 0;
32 }
33
34 __attribute__((noinline))
35 int test_long_fname_1(void)
36 {
37 return test_long_fname_2();
38 }
39
40 SEC("dummy_tracepoint")
41 int _dummy_tracepoint(void *arg)
42 {
43 return test_long_fname_1();
44 }
45
46 char _license[] SEC("license") = "GPL";
47
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