selftests/bpf: Fix verify_pkcs7_sig on s390x

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Use bpf_probe_read_kernel() instead of bpf_probe_read(), which is not
defined on all architectures.

While at it, improve the error handling: do not hide the verifier log,
and check the return values of bpf_probe_read_kernel() and
bpf_copy_from_user().

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-10-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Ilya Leoshkevich 2023-01-28 01:06:28 +01:00 • committed by Alexei Starovoitov

parent 98e13848cf

commit 56e1a50483

2 changed files with 11 additions and 4 deletions

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3

tools/testing/selftests/bpf/prog_tests/verify_pkcs7_sig.c

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10

tools/testing/selftests/bpf/progs/test_verify_pkcs7_sig.c

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