-+static int myatmdd_setsockopt(struct atm_vcc *vcc,int level,int optname, void *optval,int optlen);
-+static int myatmdd_getsockopt(struct atm_vcc *vcc,int level,int optname, void *optval,int optlen);
++static int myatmdd_setsockopt(struct atm_vcc *vcc,int level,int optname, void __user *optval,unsigned int optlen);
++static int myatmdd_getsockopt(struct atm_vcc *vcc,int level,int optname, void __user *optval,int optlen);