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selftests/bpf: Add kprobe_multi check to module attach test

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Adding test that makes sure the kernel module won't be removed
if there's kprobe multi link defined on top of it.

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20221025134148.3300700-8-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa
2022-10-25 15:41:47 +02:00
committed by Alexei Starovoitov
parent fee356ede9
commit e697d8dceb
2 changed files with 13 additions and 0 deletions
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7
tools/testing/selftests/bpf/prog_tests/module_attach.c
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@@ -103,6 +103,13 @@ void test_module_attach(void)
ASSERT_ERR(delete_module("bpf_testmod", 0), "delete_module");
bpf_link__destroy(link);
link = bpf_program__attach(skel->progs.kprobe_multi);
if (!ASSERT_OK_PTR(link, "attach_kprobe_multi"))
goto cleanup;
ASSERT_ERR(delete_module("bpf_testmod", 0), "delete_module");
bpf_link__destroy(link);
cleanup:
test_module_attach__destroy(skel);
}