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

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On Tue, Jul 19, 2022 at 7:00 PM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> 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.

Argh.

Stan,

please take a look.



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