linux-kernel - Re: [PATCH bpf-next v2 6/7] bpf: Add test ops for BPF_PROG_TYPE

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Date:   Tue, 3 Mar 2020 21:14:50 -0800
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     KP Singh <kpsingh@...omium.org>
Cc:     linux-security-module@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Paul Turner <pjt@...gle.com>, Jann Horn <jannh@...gle.com>,
        Florent Revest <revest@...omium.org>,
        Brendan Jackman <jackmanb@...omium.org>
Subject: Re: [PATCH bpf-next v2 6/7] bpf: Add test ops for BPF_PROG_TYPE_TRACING

On Tue, Mar 3, 2020 at 5:56 PM KP Singh <kpsingh@...omium.org> wrote:
>
> From: KP Singh <kpsingh@...gle.com>
>
> The current fexit and fentry tests rely on a different program to
> exercise the functions they attach to. Instead of doing this, implement
> the test operations for tracing which will also be used for
> BPF_MODIFY_RETURN in a subsequent patch.
>
> Also, clean up the fexit test to use the generated skeleton.
>
> Signed-off-by: KP Singh <kpsingh@...gle.com>
> ---

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

>  include/linux/bpf.h                           | 10 +++
>  kernel/trace/bpf_trace.c                      |  1 +
>  net/bpf/test_run.c                            | 37 +++++++---
>  .../selftests/bpf/prog_tests/fentry_fexit.c   | 12 +---
>  .../selftests/bpf/prog_tests/fentry_test.c    | 14 ++--
>  .../selftests/bpf/prog_tests/fexit_test.c     | 69 ++++++-------------
>  6 files changed, 67 insertions(+), 76 deletions(-)
>

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