selftests/bpf: Ensure snprintf_btf/bpf_iter tests compatibility with old vmlinux.h

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Andrii reports that bpf selftests relying on "struct btf_ptr" and BTF_F_*
values will not build as vmlinux.h for older kernels will not include
"struct btf_ptr" or the BTF_F_* enum values.  Undefine and redefine
them to work around this.

Fixes: b72091bd4e ("selftests/bpf: Add test for bpf_seq_printf_btf helper")
Fixes: 076a95f5af ("selftests/bpf: Add bpf_snprintf_btf helper tests")
Reported-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/1601379151-21449-3-git-send-email-alan.maguire@oracle.com

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Alan Maguire 2020-09-29 04:32:31 -07:00 • committed by Alexei Starovoitov

parent 96c48058db

commit cfe77683b8

3 changed files with 51 additions and 1 deletions

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23

tools/testing/selftests/bpf/progs/bpf_iter.h

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27

tools/testing/selftests/bpf/progs/btf_ptr.h

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2

tools/testing/selftests/bpf/progs/netif_receive_skb.c

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