DMA_TEST_FRAME_SIZE
dma_unmap_single(dma_dev, tf->frame.buffer_phy, DMA_TEST_FRAME_SIZE,
tf->data = kzalloc(DMA_TEST_FRAME_SIZE, GFP_KERNEL);
dma_addr = dma_map_single(dma_dev, tf->data, DMA_TEST_FRAME_SIZE,
dma_unmap_single(dma_dev, tf->frame.buffer_phy, DMA_TEST_FRAME_SIZE,
tf->data = kmemdup(dma_test_pattern, DMA_TEST_FRAME_SIZE, GFP_KERNEL);
dma_addr = dma_map_single(dma_dev, tf->data, DMA_TEST_FRAME_SIZE,
dma_test_pattern = kmalloc(DMA_TEST_FRAME_SIZE, GFP_KERNEL);
for (i = 0; i < DMA_TEST_FRAME_SIZE / sizeof(data_value); i++)