netdev - Re: [PATCH bpf-next 4/5] bpftool: Add SEC name for xdp programs attached to device map

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Message-ID: <18823a44-09ba-0b45-2ce3-f34c08c6ea5f@gmail.com>
Date:   Wed, 27 May 2020 08:03:45 -0600
From:   David Ahern <dsahern@...il.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>,
        David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, brouer@...hat.com,
        daniel@...earbox.net, john.fastabend@...il.com, ast@...nel.org,
        kafai@...com, songliubraving@...com, yhs@...com, andriin@...com
Subject: Re: [PATCH bpf-next 4/5] bpftool: Add SEC name for xdp programs
 attached to device map

On 5/27/20 4:02 AM, Toke Høiland-Jørgensen wrote:
> David Ahern <dsahern@...nel.org> writes:
> 
>> Support SEC("xdp_dm*") as a short cut for loading the program with
>> type BPF_PROG_TYPE_XDP and expected attach type BPF_XDP_DEVMAP.
> 
> You're not using this in the selftest; shouldn't you be? Also, the
> prefix should be libbpf: not bpftool:, no?
> 

The selftest is exercising kernel APIs - what is allowed and what is not.

Yes, the subject should be libbpf.