146 	u32 tail;  in qib_get_rwqe()  local
166 	tail = wq->tail;  in qib_get_rwqe()
168 	if (tail >= rq->size)  in qib_get_rwqe()
169 		tail = 0;  in qib_get_rwqe()
170 	if (unlikely(tail == wq->head)) {  in qib_get_rwqe()
176 	wqe = get_rwqe_ptr(rq, tail);  in qib_get_rwqe()
182 	if (++tail >= rq->size)  in qib_get_rwqe()
183 		tail = 0;  in qib_get_rwqe()
184 	wq->tail = tail;  in qib_get_rwqe()
203 		if (n < tail)  in qib_get_rwqe()
204 			n += rq->size - tail;  in qib_get_rwqe()
206 			n -= tail;  in qib_get_rwqe()