netdev - Re: [bpf-next PATCH 1/4] selftests/bpf: Move test_tcppbf_user into test

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Message-ID: <CAEf4BzZxevcUHurBQ49006g87CzztDdWn6pWZRWzpL+_97R4qg@mail.gmail.com>
Date:   Thu, 29 Oct 2020 16:27:04 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin Lau <kafai@...com>,
        john fastabend <john.fastabend@...il.com>,
        Kernel Team <kernel-team@...com>,
        Networking <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Lawrence Brakmo <brakmo@...com>, alexanderduyck@...com
Subject: Re: [bpf-next PATCH 1/4] selftests/bpf: Move test_tcppbf_user into test_progs

On Wed, Oct 28, 2020 at 4:50 PM Alexander Duyck
<alexander.duyck@...il.com> wrote:
>
> From: Alexander Duyck <alexanderduyck@...com>
>
> Recently a bug was missed due to the fact that test_tcpbpf_user is not a
> part of test_progs. In order to prevent similar issues in the future move
> the test functionality into test_progs. By doing this we can make certain
> that it is a part of standard testing and will not be overlooked.
>
> As a part of moving the functionality into test_progs it is necessary to
> integrate with the test_progs framework and to drop any redundant code.
> This patch:
> 1. Cleans up the include headers
> 2. Dropped a duplicate definition of bpf_find_map
> 3. Replaced printf calls with fprintf to stderr
> 4. Renamed main to test_tcpbpf_user
> 5. Dropped return value in favor of CHECK calls to check for errors
>
> Signed-off-by: Alexander Duyck <alexanderduyck@...com>
> ---
>  tools/testing/selftests/bpf/Makefile               |    3
>  .../testing/selftests/bpf/prog_tests/tcpbpf_user.c |  138 +++++++++++++++++
>  tools/testing/selftests/bpf/test_tcpbpf_user.c     |  165 --------------------

Please remove the binary from .gitignore as well

>  3 files changed, 139 insertions(+), 167 deletions(-)
>  create mode 100644 tools/testing/selftests/bpf/prog_tests/tcpbpf_user.c
>  delete mode 100644 tools/testing/selftests/bpf/test_tcpbpf_user.c

if this file is mostly the same, then Git should be able to detect
that this is a file rename. That will be captured in a diff explicitly
and will minimize this patch significantly. Please double-check why
this was not detected properly.

[...]