On Thu, Feb 25, 2021 at 1:36 AM Yonghong Song [off-list ref] wrote:

A test is added for arraymap and percpu arraymap. The test also
exercises the early return for the helper which does not
traverse all elements.
    $ ./test_progs -n 45
    #45/1 hash_map:OK
    #45/2 array_map:OK
    #45 for_each:OK
    Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Yonghong Song <redacted>
---

same question about "classifier/", but otherwise:

Acked-by: Andrii Nakryiko <andrii@kernel.org>

 .../selftests/bpf/prog_tests/for_each.c       | 58 ++++++++++++++++++
 .../bpf/progs/for_each_array_map_elem.c       | 61 +++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/progs/for_each_array_map_elem.c

[...]