From: Alexei Starovoitov <ast@xxxxxxxxxx>
Since recursion_misses counter is available in bpf_prog_info
improve the selftest to make sure it's counting correctly.
Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
---
tools/testing/selftests/bpf/prog_tests/recursion.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/recursion.c b/tools/testing/selftests/bpf/prog_tests/recursion.c
index 863757461e3f..0e378d63fe18 100644
--- a/tools/testing/selftests/bpf/prog_tests/recursion.c
+++ b/tools/testing/selftests/bpf/prog_tests/recursion.c
@@ -5,6 +5,8 @@
void test_recursion(void)
{
+ struct bpf_prog_info prog_info = {};
+ __u32 prog_info_len = sizeof(prog_info);
struct recursion *skel;
int key = 0;
int err;
@@ -28,6 +30,12 @@ void test_recursion(void)
ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1");
bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0);
ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2");
+
+ err = bpf_obj_get_info_by_fd(bpf_program__fd(skel->progs.on_lookup),
+ &prog_info, &prog_info_len);
+ if (!ASSERT_OK(err, "get_prog_info"))
+ goto out;
+ ASSERT_EQ(prog_info.recursion_misses, 2, "recursion_misses");
out:
recursion__destroy(skel);
}
--
2.24.1
