netdev - Re: linux-next: build failure after merge of the bpf-next tree

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Message-ID: <20210826020111.l5v3dsr2onbz6zte@kashmir.localdomain>
Date:   Wed, 25 Aug 2021 19:01:11 -0700
From:   Daniel Xu <dxu@...uu.xyz>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Networking <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the bpf-next tree

Hi Stephen,

On Thu, Aug 26, 2021 at 11:50:50AM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the bpf-next tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> kernel/trace/bpf_trace.c:717:47: error: expected ')' before 'struct'
>   717 | BTF_ID_LIST_GLOBAL_SINGLE(btf_task_struct_ids, struct, task_struct)
>       |                                               ^~~~~~~
>       |                                               )
> kernel/trace/bpf_trace.c: In function 'bpf_tracing_func_proto':
> kernel/trace/bpf_trace.c:1051:11: error: 'bpf_get_current_task_btf_proto' undeclared (first use in this function); did you mean 'bpf_get_current_task_proto'?
>  1051 |   return &bpf_get_current_task_btf_proto;
>       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |           bpf_get_current_task_proto
> 
> Caused by commit
> 
>   33c5cb36015a ("bpf: Consolidate task_struct BTF_ID declarations")
> 
> I have used the bpf-next tree from next-20210825 for today.

Sorry about the breakage. I've put up
https://lore.kernel.org/bpf/05d94748d9f4b3eecedc4fddd6875418a396e23c.1629942444.git.dxu@dxuuu.xyz/T/#u
which I think should fix it. Can you give that patch a try?

Thanks,
Daniel