netdev - Re: [PATCH bpf-next v8 4/4] selftests/bpf: Add test for xdp_md context in BPF_PROG_TEST

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Date:   Wed, 7 Jul 2021 19:36:35 -0700
From:   Yonghong Song <yhs@...com>
To:     Zvi Effron <zeffron@...tgames.com>, <bpf@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
        Martin KaFai Lau <kafai@...com>, <netdev@...r.kernel.org>,
        KP Singh <kpsingh@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Song Liu <songliubraving@...com>,
        Jakub Kicinski <kuba@...nel.org>,
        Cody Haas <chaas@...tgames.com>,
        Lisa Watanabe <lwatanabe@...tgames.com>
Subject: Re: [PATCH bpf-next v8 4/4] selftests/bpf: Add test for xdp_md
 context in BPF_PROG_TEST_RUN



On 7/7/21 3:16 PM, Zvi Effron wrote:
> Add a test for using xdp_md as a context to BPF_PROG_TEST_RUN for XDP
> programs.
> 
> The test uses a BPF program that takes in a return value from XDP
> meta data, then reduces the size of the XDP meta data by 4 bytes.
> 
> Test cases validate the possible failure cases for passing in invalid
> xdp_md contexts, that the return value is successfully passed
> in, and that the adjusted meta data is successfully copied out.
> 
> Co-developed-by: Cody Haas <chaas@...tgames.com>
> Signed-off-by: Cody Haas <chaas@...tgames.com>
> Co-developed-by: Lisa Watanabe <lwatanabe@...tgames.com>
> Signed-off-by: Lisa Watanabe <lwatanabe@...tgames.com>
> Signed-off-by: Zvi Effron <zeffron@...tgames.com>

I didn't see this patch changed from previous revision, but
my ack is lost, so added below. Zvi, next time, please carry
the Ack if there is no *significant* changes to the patch.

Acked-by: Yonghong Song <yhs@...com>