Symbol: x25_validate_nr
include/net/x25.h
280
int x25_validate_nr(struct sock *, unsigned short);
net/x25/x25_in.c
242
if (!x25_validate_nr(sk, nr)) {
net/x25/x25_in.c
264
if ((ns != x25->vr) || !x25_validate_nr(sk, nr)) {