bpf_rand_u40 64 tools/testing/selftests/bpf/bpf_rand.h case 26: return 0xffffffffffffffffULL ^ bpf_rand_u40(bpf_rand_u8(0) % 64); bpf_rand_u40 72 tools/testing/selftests/bpf/bpf_rand.h case 34: return bpf_rand_u40(bpf_rand_u8(0) % 64);