]> Git Repo - J-linux.git/blob - tools/testing/selftests/bpf/prog_tests/recursion.c
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / tools / testing / selftests / bpf / prog_tests / recursion.c
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2021 Facebook */
3 #include <test_progs.h>
4 #include "recursion.skel.h"
5
6 void test_recursion(void)
7 {
8         struct bpf_prog_info prog_info = {};
9         __u32 prog_info_len = sizeof(prog_info);
10         struct recursion *skel;
11         int key = 0;
12         int err;
13
14         skel = recursion__open_and_load();
15         if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
16                 return;
17
18         err = recursion__attach(skel);
19         if (!ASSERT_OK(err, "skel_attach"))
20                 goto out;
21
22         ASSERT_EQ(skel->bss->pass1, 0, "pass1 == 0");
23         bpf_map_delete_elem(bpf_map__fd(skel->maps.hash1), &key);
24         ASSERT_EQ(skel->bss->pass1, 1, "pass1 == 1");
25         bpf_map_delete_elem(bpf_map__fd(skel->maps.hash1), &key);
26         ASSERT_EQ(skel->bss->pass1, 2, "pass1 == 2");
27
28         ASSERT_EQ(skel->bss->pass2, 0, "pass2 == 0");
29         bpf_map_delete_elem(bpf_map__fd(skel->maps.hash2), &key);
30         ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1");
31         bpf_map_delete_elem(bpf_map__fd(skel->maps.hash2), &key);
32         ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2");
33
34         err = bpf_prog_get_info_by_fd(bpf_program__fd(skel->progs.on_delete),
35                                       &prog_info, &prog_info_len);
36         if (!ASSERT_OK(err, "get_prog_info"))
37                 goto out;
38         ASSERT_EQ(prog_info.recursion_misses, 2, "recursion_misses");
39 out:
40         recursion__destroy(skel);
41 }
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