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selftests/bpf: Fix verify_pkcs7_sig on s390x
authorIlya Leoshkevich <iii@linux.ibm.com>
Sat, 28 Jan 2023 00:06:28 +0000 (01:06 +0100)
committerAlexei Starovoitov <ast@kernel.org>
Sat, 28 Jan 2023 20:30:08 +0000 (12:30 -0800)
commit56e1a50483194b2e0ac54849e94cc2b80480895e
tree80b6bdb7d75ceca93eb6a0764856ad916d38be26
parent98e13848cf43b66b0f32f10011aa398c2bff5ae6
selftests/bpf: Fix verify_pkcs7_sig on s390x

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>
tools/testing/selftests/bpf/prog_tests/verify_pkcs7_sig.c
tools/testing/selftests/bpf/progs/test_verify_pkcs7_sig.c