cdnsp_ring_alloc
pdev->cmd_ring = cdnsp_ring_alloc(pdev, 1, TYPE_COMMAND, 0, GFP_KERNEL);
pdev->event_ring = cdnsp_ring_alloc(pdev, ERST_NUM_SEGS, TYPE_EVENT,
cur_ring = cdnsp_ring_alloc(pdev, 2, TYPE_STREAM, mps,
pdev->eps[0].ring = cdnsp_ring_alloc(pdev, 2, TYPE_CTRL, 0, GFP_ATOMIC);
pep->ring = cdnsp_ring_alloc(pdev, 2, ring_type, max_packet, mem_flags);
DEFINE_EVENT(cdnsp_log_ring, cdnsp_ring_alloc,