Function ng_l2cap_prepend

freebsd/netgraph/bluetooth/l2cap/ng_l2cap_misc.c:594–602

 */

struct mbuf *
ng_l2cap_prepend(struct mbuf *m, int size)
{
	M_PREPEND(m, size, M_NOWAIT);
	if (m == NULL || (m->m_len < size && (m = m_pullup(m, size)) == NULL))
		return (NULL);

	return (m);
} /* ng_l2cap_prepend */

/*
 * Default flow settings