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

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Date:   Thu, 11 Mar 2021 07:47:03 +0100
From:   Björn Töpel <bjorn.topel@...el.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Networking <netdev@...r.kernel.org>
Cc:     Andrii Nakryiko <andrii@...nel.org>,
        Björn Töpel <bjorn@...nel.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

On 2021-03-11 01:47, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the bpf-next tree, today's linux-next build (perf) failed
> like this:
> 
> make[3]: *** No rule to make target 'libbpf_util.h', needed by '/home/sfr/next/perf/staticobjs/xsk.o'.  Stop.
>

Hi Stephen,

It's an incremental build issue, as pointed out here [1], that is
resolved by cleaning the build.


Cheers,
Björn

[1] 
https://lore.kernel.org/bpf/CAEf4BzYPDF87At4=_gsndxof84OiqyJxgAHL7_jvpuntovUQ8w@mail.gmail.com/


> Caused by commit
> 
>    7e8bbe24cb8b ("libbpf: xsk: Move barriers from libbpf_util.h to xsk.h")
> 
> I have used the bpf tree from next-20210310 for today.
>