hda_intel_stream
struct hda_intel_stream *s = kzalloc_obj(*s);
struct hda_intel_stream *istream = azx_dev_to_istream(azx_dev);
struct hda_intel_stream *istream =
container_of(work, struct hda_intel_stream, irq_pending_work);
struct hda_intel_stream *istream = azx_dev_to_istream(azx_dev);
container_of(azx_dev, struct hda_intel_stream, azx_dev)