linux-kernel - Re: [PATCH bpf-next 1/2] trace: bpf: Allow bpf to attach to bare tracepoints

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Message-ID: <20210113101606.lpsn4scnsecdfxwr@e107158-lin>
Date:   Wed, 13 Jan 2021 10:16:06 +0000
From:   Qais Yousef <qais.yousef@....com>
To:     Yonghong Song <yhs@...com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Steven Rostedt <rostedt@...dmis.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next 1/2] trace: bpf: Allow bpf to attach to bare
 tracepoints

On 01/12/21 12:19, Yonghong Song wrote:
> I applied the patch to my local bpf-next repo, and got the following
> compilation error:

[...]

> 
> I dumped preprecessor result but after macro expansion, the code
> becomes really complex and I have not figured out why it failed.
> Do you know what is the possible reason?

Yeah I did a last minute fix to address a checkpatch.pl error and my
verification of the change wasn't good enough obviously.

If you're keen to try out I can send you a patch with the fix. I should send v2
by the weekend too.

Thanks for having a look.

Cheers

--
Qais Yousef