-#ifdef CONFIG_NET_DMA
- if (tp->ucopy.dma_chan) {
- struct sk_buff *skb;
- dma_cookie_t done, used;
-
- dma_async_memcpy_issue_pending(tp->ucopy.dma_chan);
-
- while (dma_async_memcpy_complete(tp->ucopy.dma_chan,
- tp->ucopy.dma_cookie, &done,
- &used) == DMA_IN_PROGRESS) {
- /* do partial cleanup of sk_async_wait_queue */
- while ((skb = skb_peek(&sk->sk_async_wait_queue)) &&
- (dma_async_is_complete(skb->dma_cookie, done,
- used) == DMA_SUCCESS)) {
- __skb_dequeue(&sk->sk_async_wait_queue);
- kfree_skb(skb);
- }
- }
-
- /* Safe to free early-copied skbs now */
- __skb_queue_purge(&sk->sk_async_wait_queue);
- dma_chan_put(tp->ucopy.dma_chan);
- tp->ucopy.dma_chan = NULL;
- }
- if (tp->ucopy.pinned_list) {
- dma_unpin_iovec_pages(tp->ucopy.pinned_list);
- tp->ucopy.pinned_list = NULL;
- }
-#endif
-