netdev - Re: [PATCH bpf-next v5 0/3] selftests/bpf: switch test

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Message-ID: <CAADnVQK-TK1T+MQj21HMxS9+9GDx3HnQmPLxWET0paoo+V_5dg@mail.gmail.com>
Date:   Tue, 6 Aug 2019 17:23:27 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Stanislav Fomichev <sdf@...gle.com>
Cc:     Network Development <netdev@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>
Subject: Re: [PATCH bpf-next v5 0/3] selftests/bpf: switch test_progs back to stdio

On Tue, Aug 6, 2019 at 10:45 AM Stanislav Fomichev <sdf@...gle.com> wrote:
>
> I was looking into converting test_sockops* to test_progs framework
> and that requires using cgroup_helpers.c which rely on stdio/stderr.
> Let's use open_memstream to override stdout into buffer during
> subtests instead of custom test_{v,}printf wrappers. That lets
> us continue to use stdio in the subtests and dump it on failure
> if required.
>
> That would also fix bpf_find_map which currently uses printf to
> signal failure (missed during test_printf conversion).

Applied. Thanks