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v6.13.7
 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2018 Facebook */
 3#include <linux/bpf.h>
 4#include <bpf/bpf_helpers.h>
 
 
 5
 6struct ipv_counts {
 7	unsigned int v4;
 8	unsigned int v6;
 9};
10
11struct {
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))
19int 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))
34int test_long_fname_1(void)
35{
36	return test_long_fname_2();
37}
38
39SEC("dummy_tracepoint")
40int _dummy_tracepoint(void *arg)
41{
42	return test_long_fname_1();
43}
44
45char _license[] SEC("license") = "GPL";
v5.4
 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2018 Facebook */
 3#include <linux/bpf.h>
 4#include "bpf_helpers.h"
 5
 6int _version SEC("version") = 1;
 7
 8struct ipv_counts {
 9	unsigned int v4;
10	unsigned int v6;
11};
12
13struct bpf_map_def SEC("maps") btf_map = {
14	.type = BPF_MAP_TYPE_ARRAY,
15	.key_size = sizeof(int),
16	.value_size = sizeof(struct ipv_counts),
17	.max_entries = 4,
18};
19
20struct dummy_tracepoint_args {
21	unsigned long long pad;
22	struct sock *sock;
23};
24
25__attribute__((noinline))
26static int test_long_fname_2(struct dummy_tracepoint_args *arg)
27{
28	struct ipv_counts *counts;
29	int key = 0;
30
31	if (!arg->sock)
32		return 0;
33
34	counts = bpf_map_lookup_elem(&btf_map, &key);
35	if (!counts)
36		return 0;
37
38	counts->v6++;
39
40	return 0;
41}
42
43__attribute__((noinline))
44static int test_long_fname_1(struct dummy_tracepoint_args *arg)
45{
46	return test_long_fname_2(arg);
47}
48
49SEC("dummy_tracepoint")
50int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
51{
52	return test_long_fname_1(arg);
53}
54
55char _license[] SEC("license") = "GPL";