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Since libbpf v1.0, libbpf doesn't return error code embedded into the pointer iteself, libbpf_get_error() is deprecated and it is basically the same as using -errno directly. So replace the invocations of libbpf_get_error() by -errno in kprobe_multi_test. For libbpf_get_error() in test_attach_api_fails(), saving -errno before invoking ASSERT_xx() macros just in case that errno is overwritten by these macros. However, the invocation of libbpf_get_error() in get_syms() should be kept intact, because hashmap__new() still returns a pointer with embedded error code. Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20231215100708.2265609-5-houtao@huaweicloud.com