dma_free_pages
dma_free_pages(&teedev->dev, page_count * PAGE_SIZE, page, dma_addr,
dma_free_pages(&teedev->dev, shm->size, dma_mem->page,
void dma_free_pages(struct device *dev, size_t size, struct page *page,
dma_free_pages(dev, size, virt_to_page(vaddr), dma_handle, dir);
DEFINE_FREE_EVENT(dma_free_pages);
EXPORT_SYMBOL_GPL(dma_free_pages);