netdev - Re: [PATCH v4 2/2] selftests: Add test for overriding global data value before load

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Date:   Sun, 29 Mar 2020 13:13:52 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...com>, bpf <bpf@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] selftests: Add test for overriding global data
 value before load

On Sun, Mar 29, 2020 at 6:23 AM Toke Høiland-Jørgensen <toke@...hat.com> wrote:
>
> This adds a test to exercise the new bpf_map__set_initial_value() function.
> The test simply overrides the global data section with all zeroes, and
> checks that the new value makes it into the kernel map on load.
>
> Signed-off-by: Toke Høiland-Jørgensen <toke@...hat.com>
> ---

I guess given you don't attach or run any BPF program, it's fine to
reuse test_global_data.o for this.

Acked-by: Andrii Nakryiko <andriin@...com>


>  .../bpf/prog_tests/global_data_init.c         | 61 +++++++++++++++++++
>  .../selftests/bpf/progs/test_global_data.c    |  2 +-
>  2 files changed, 62 insertions(+), 1 deletion(-)
>  create mode 100644 tools/testing/selftests/bpf/prog_tests/global_data_init.c
>

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