Kprobe prog type kfuncs like bpf_session_is_return and bpf_session_cookie will check the expected_attach_type, so init the expected_attach_type here. Signed-off-by: Tao Chen <chen.dylane@xxxxxxxxx> --- tools/lib/bpf/libbpf_probes.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c index 8efebc18a215..bb5b457ddc80 100644 --- a/tools/lib/bpf/libbpf_probes.c +++ b/tools/lib/bpf/libbpf_probes.c @@ -126,6 +126,7 @@ static int probe_prog_load(enum bpf_prog_type prog_type, break; case BPF_PROG_TYPE_KPROBE: opts.kern_version = get_kernel_version(); + opts.expected_attach_type = BPF_TRACE_KPROBE_SESSION; break; case BPF_PROG_TYPE_LIRC_MODE2: opts.expected_attach_type = BPF_LIRC_MODE2; -- 2.43.0