drivers/thunderbolt/dma_test.c

233 	struct dma_test_frame *tf = container_of(frame, typeof(*tf), frame);
234 	struct dma_test *dt = tf->dma_test;
237 	dma_unmap_single(dma_dev, tf->frame.buffer_phy, DMA_TEST_FRAME_SIZE,
239 	kfree(tf->data);
242 		kfree(tf);
250 	if (tf->frame.flags & RING_DESC_CRC_ERROR)
252 	if (tf->frame.flags & RING_DESC_BUFFER_OVERRUN)
255 	kfree(tf);
267 		struct dma_test_frame *tf;
270 		tf = kzalloc(sizeof(*tf), GFP_KERNEL);
271 		if (!tf)
274 		tf->data = kzalloc(DMA_TEST_FRAME_SIZE, GFP_KERNEL);
275 		if (!tf->data) {
276 			kfree(tf);
280 		dma_addr = dma_map_single(dma_dev, tf->data, DMA_TEST_FRAME_SIZE,
283 			kfree(tf->data);
284 			kfree(tf);
288 		tf->frame.buffer_phy = dma_addr;
289 		tf->frame.callback = dma_test_rx_callback;
290 		tf->dma_test = dt;
291 		INIT_LIST_HEAD(&tf->frame.list);
293 		tb_ring_rx(dt->rx_ring, &tf->frame);
302 	struct dma_test_frame *tf = container_of(frame, typeof(*tf), frame);
303 	struct dma_test *dt = tf->dma_test;
306 	dma_unmap_single(dma_dev, tf->frame.buffer_phy, DMA_TEST_FRAME_SIZE,
308 	kfree(tf->data);
309 	kfree(tf);
318 		struct dma_test_frame *tf;
321 		tf = kzalloc(sizeof(*tf), GFP_KERNEL);
322 		if (!tf)
325 		tf->frame.size = 0; /* means 4096 */
326 		tf->dma_test = dt;
328 		tf->data = kmemdup(dma_test_pattern, DMA_TEST_FRAME_SIZE, GFP_KERNEL);
329 		if (!tf->data) {
330 			kfree(tf);
334 		dma_addr = dma_map_single(dma_dev, tf->data, DMA_TEST_FRAME_SIZE,
337 			kfree(tf->data);
338 			kfree(tf);
342 		tf->frame.buffer_phy = dma_addr;
343 		tf->frame.callback = dma_test_tx_callback;
344 		tf->frame.sof = DMA_TEST_PDF_FRAME_START;
345 		tf->frame.eof = DMA_TEST_PDF_FRAME_END;
346 		INIT_LIST_HEAD(&tf->frame.list);
352 		tb_ring_tx(dt->tx_ring, &tf->frame);