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Message-ID: <6b659192-5133-981e-0c43-7ca1120edd9c@huawei.com>
Date:   Thu, 15 Jul 2021 09:44:36 +0800
From:   "luwei (O)" <luwei32@...wei.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
CC:     Toke Høiland-Jørgensen <toke@...hat.com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        David Ahern <dahern@...italocean.com>
Subject: Re: Ask for help about bpf map

Andrii and Toke inspired me. You are right, the libbpf version should be included in -V output
, but not mine. I searched google and found this page: https://www.spinics.net/lists/netdev/msg700482.html
, according which I re-compiled iproute2 and it works.

Previously, I downloaded iproute2(5.13) and excuted "cd iproute2; make && make install". Libbpf which supports
btf-defined map is not included.


在 2021/7/14 10:48 PM, Alexei Starovoitov 写道:
> On Wed, Jul 14, 2021 at 1:24 AM luwei (O) <luwei32@...wei.com> wrote:
>> Hi Andrii and toke,
>>
>>       I have sovled this issue. The reason is that my iproute2 does not
>> support libbpf, once I compile iproute2 with libbpf, it works. Thanks
>> for reply!
> How did you figure that out?
> I thought iproute folks should have included that info as part of -V output.
> Since this exact concern was hotly debated in the past.
> Non-vendoring clearly causes this annoying user experience.
> .

-- 
Best Regards,
Lu Wei

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