147 	u32 tail;  in qib_get_rwqe()  local
167 	tail = wq->tail;  in qib_get_rwqe()
169 	if (tail >= rq->size)  in qib_get_rwqe()
170 		tail = 0;  in qib_get_rwqe()
171 	if (unlikely(tail == wq->head)) {  in qib_get_rwqe()
177 	wqe = get_rwqe_ptr(rq, tail);  in qib_get_rwqe()
183 	if (++tail >= rq->size)  in qib_get_rwqe()
184 		tail = 0;  in qib_get_rwqe()
185 	wq->tail = tail;  in qib_get_rwqe()
204 		if (n < tail)  in qib_get_rwqe()
205 			n += rq->size - tail;  in qib_get_rwqe()
207 			n -= tail;  in qib_get_rwqe()