treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / tools / testing / selftests / bpf / progs / test_btf_haskv.c
blob88b0566da13d2654a5a682089f4f9054b7038a11
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"
7 int _version SEC("version") = 1;
9 struct ipv_counts {
10 unsigned int v4;
11 unsigned int v6;
14 struct 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,
21 BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts);
23 struct dummy_tracepoint_args {
24 unsigned long long pad;
25 struct sock *sock;
28 __attribute__((noinline))
29 int test_long_fname_2(struct dummy_tracepoint_args *arg)
31 struct ipv_counts *counts;
32 int key = 0;
34 if (!arg->sock)
35 return 0;
37 counts = bpf_map_lookup_elem(&btf_map, &key);
38 if (!counts)
39 return 0;
41 counts->v6++;
43 return 0;
46 __attribute__((noinline))
47 int test_long_fname_1(struct dummy_tracepoint_args *arg)
49 return test_long_fname_2(arg);
52 SEC("dummy_tracepoint")
53 int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
55 return test_long_fname_1(arg);
58 char _license[] SEC("license") = "GPL";