inpcb_rtchange
notify = inpcb_rtchange, ip = 0;
notify = inpcb_rtchange;
inpcb_rtchange(inp, 0);
void inpcb_rtchange(struct inpcb *, int);
void (*notify)(struct inpcb *, int) = inpcb_rtchange;
notify = inpcb_rtchange, ip = 0;
inpcb_rtchange((struct inpcb *)inp,
notify = inpcb_rtchange, ip = 0;
inpcb_rtchange(inp, errno);
notify = inpcb_rtchange;