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 {
12 __uint(type, BPF_MAP_TYPE_ARRAY);
13 __uint(key_size, sizeof(int));
14 __uint(value_size, sizeof(struct ipv_counts));
15 __uint(max_entries, 4);
16 } btf_map SEC(".maps");
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
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