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

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Date:   Wed, 20 Jul 2022 11:59:56 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>
Cc:     bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Stanislav Fomichev <sdf@...gle.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 (powerpc
ppc64_defconfig) failed like this:

ld: warning: discarding dynamic section .glink
ld: warning: discarding dynamic section .plt
ld: linkage table error against `bpf_trampoline_unlink_cgroup_shim'
ld: stubs don't match calculated size
ld: can not build stubs: bad value
ld: kernel/bpf/cgroup.o: in function `.bpf_cgroup_link_release.part.0':
cgroup.c:(.text+0x2fc4): undefined reference to `.bpf_trampoline_unlink_cgroup_shim'
ld: kernel/bpf/cgroup.o: in function `.cgroup_bpf_release':
cgroup.c:(.text+0x33b0): undefined reference to `.bpf_trampoline_unlink_cgroup_shim'
ld: cgroup.c:(.text+0x33c0): undefined reference to `.bpf_trampoline_unlink_cgroup_shim'

Caused by commit

  3908fcddc65d ("bpf: fix lsm_cgroup build errors on esoteric configs")

I have reverted that commit for today.

-- 
Cheers,
Stephen Rothwell

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