rem: if (m->m_len > cnt) {
add: if ((int) m->m_len > cnt) {
context: void tcp_pulloutofband(struct socket *so, struct tcpiphdr *ti, struct mbuf *m){	int cnt = ti->ti_urp - 1;		while (cnt >= 0) {		if (m->m_len > cnt) {			char *cp = mtod(m, caddr_t) + cnt;			struct tcpcb *tp = sototcpcb(so);			tp->t_iobc = *cp;			tp->t_oobflags |= TCPOOB_HAVEDATA;			memcpy(cp, cp+1, (unsigned)(m->m_len - cnt - 1));			m->m_len--;			return;		}		cnt -= m->m_len;		m = m->m_next;		if (m == NULL)			break;	}}