netdev - Re: [PATCHv3 iproute2-next 0/5] iproute2: add libbpf support

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Message-ID: <bb04a01a-8a96-7a6a-c77e-28ee63983d9a@solarflare.com>
Date:   Wed, 4 Nov 2020 21:15:56 +0000
From:   Edward Cree <ecree@...arflare.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Hangbin Liu <haliu@...hat.com>
CC:     David Ahern <dsahern@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Alexei Starovoitov <ast@...nel.org>,
        "Martin KaFai Lau" <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        David Miller <davem@...emloft.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Jiri Benc <jbenc@...hat.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Toke Høiland-Jørgensen <toke@...hat.com>
Subject: Re: [PATCHv3 iproute2-next 0/5] iproute2: add libbpf support

On 04/11/2020 03:11, Alexei Starovoitov wrote:
> The user will do 'tc -V'. Does version mean anything from bpf loading pov?
> It's not. The user will do "ldd `which tc`" and then what?
Is it beyond the wit of man for 'tc -V' to output somethingabout
 libbpf version?
Other libraries seem to solve these problems all the time, I
 haven't seen anyone explain what makes libbpf so special that it
 has to be different.

-ed