snd_hdac_bus_alloc_stream_pages
int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus);
snd_hdac_bus_alloc_stream_pages(azx_bus(chip))
EXPORT_SYMBOL_GPL(snd_hdac_bus_alloc_stream_pages);
return snd_hdac_bus_alloc_stream_pages(bus);