bpf_mprog_read
bpf_mprog_read(entry, idx, &fp, &cp);
bpf_mprog_read(peer, idx, &fp, &cp);
bpf_mprog_read(entry, i, &fp, &cp);
bpf_mprog_read(entry, i, &fp, &cp);
bpf_mprog_read(entry, i, &fp, &cp);
bpf_mprog_read(entry, idx, &fp, &cp);
bpf_mprog_read(entry, i, &fp, &cp);