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

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Date:   Tue, 14 Sep 2021 11:37:30 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Networking <netdev@...r.kernel.org>
Cc:     Andrii Nakryiko <andrii@...nel.org>,
        Quentin Monnet <quentin@...valent.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the bpf-next tree

Hi all,

After merging the bpf-next tree, today's linux-next build (perf) failed
like this:

util/bpf-event.c: In function 'btf__load_from_kernel_by_id':
util/bpf-event.c:27:8: error: 'btf__get_from_id' is deprecated: libbpf v0.6+: use btf__load_from_kernel_by_id instead [-Werror=deprecated-declarations]
   27 |        int err = btf__get_from_id(id, &btf);
      |        ^~~
In file included from util/bpf-event.c:5:
/home/sfr/next/next/tools/lib/bpf/btf.h:54:16: note: declared here
   54 | LIBBPF_API int btf__get_from_id(__u32 id, struct btf **btf);
      |                ^~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Caused by commit

  0b46b7550560 ("libbpf: Add LIBBPF_DEPRECATED_SINCE macro for scheduling API deprecations")

I have used the bpf-next tree from next-20210913 for today.

-- 
Cheers,
Stephen Rothwell

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