USER_BPFPTR
return USER_BPFPTR(u64_to_user_ptr(addr));
err = bpf_check_uarg_tail_zero(USER_BPFPTR(uinfo), len, info_len);
err = bpf_check_uarg_tail_zero(USER_BPFPTR(uinfo), len, info_len);
err = bpf_check_uarg_tail_zero(USER_BPFPTR(uinfo), sizeof(*uinfo), info_len);
err = bpf_check_uarg_tail_zero(USER_BPFPTR(uinfo), sizeof(info), info_len);
err = bpf_check_uarg_tail_zero(USER_BPFPTR(uinfo), sizeof(*uinfo), info_len);
return __sys_bpf(cmd, USER_BPFPTR(uattr), size, USER_BPFPTR(uattr_common), size_common);
err = bpf_check_uarg_tail_zero(USER_BPFPTR(data_in), max_size, size);