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| author | Martin Kelly <martin.kelly@crowdstrike.com> | 2023-09-25 14:50:35 -0700 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2023-09-25 16:22:42 -0700 |
| commit | c1ad2e47f97c6d95e52be0c2a68b23fc99214734 (patch) | |
| tree | 5c3a726c0e87e479ec4fa7c36fb23ccf902fbc1d /tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c | |
| parent | 1c97f6afd73934881ae8514c51efc8e162b4b406 (diff) | |
| download | linux-c1ad2e47f97c6d95e52be0c2a68b23fc99214734.tar.gz linux-c1ad2e47f97c6d95e52be0c2a68b23fc99214734.tar.bz2 linux-c1ad2e47f97c6d95e52be0c2a68b23fc99214734.zip | |
selftests/bpf: Add tests for ring_buffer__ring
Add tests for the new API ring_buffer__ring.
Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230925215045.2375758-5-martin.kelly@crowdstrike.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c index 1455911d9fcb..58522195081b 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c @@ -42,6 +42,8 @@ void test_ringbuf_multi(void) { struct test_ringbuf_multi *skel; struct ring_buffer *ringbuf = NULL; + struct ring *ring_old; + struct ring *ring; int err; int page_size = getpagesize(); int proto_fd = -1; @@ -84,11 +86,24 @@ void test_ringbuf_multi(void) if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n")) goto cleanup; + /* verify ring_buffer__ring returns expected results */ + ring = ring_buffer__ring(ringbuf, 0); + if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0")) + goto cleanup; + ring_old = ring; + ring = ring_buffer__ring(ringbuf, 1); + ASSERT_ERR_PTR(ring, "ring_buffer__ring_idx_1"); + err = ring_buffer__add(ringbuf, bpf_map__fd(skel->maps.ringbuf2), process_sample, (void *)(long)2); if (CHECK(err, "ringbuf_add", "failed to add another ring\n")) goto cleanup; + /* verify adding a new ring didn't invalidate our older pointer */ + ring = ring_buffer__ring(ringbuf, 0); + if (!ASSERT_EQ(ring, ring_old, "ring_buffer__ring_again")) + goto cleanup; + err = test_ringbuf_multi__attach(skel); if (CHECK(err, "skel_attach", "skeleton attachment failed: %d\n", err)) goto cleanup; |