net_dma: convert to dma_find_channel

Use the general-purpose channel allocation provided by dmaengine.

Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 75e0e0a2d8db..9b275abc8eb9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1317,7 +1317,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                 if ((available < target) &&
                     (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
                     !sysctl_tcp_low_latency &&
-                    __get_cpu_var(softnet_data).net_dma) {
+                    dma_find_channel(DMA_MEMCPY)) {
                         preempt_enable_no_resched();
                         tp->ucopy.pinned_list =
                                         dma_pin_iovec_pages(msg->msg_iov, len);
@@ -1527,7 +1527,7 @@ do_prequeue:
                 if (!(flags & MSG_TRUNC)) {
 #ifdef CONFIG_NET_DMA
                         if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
-                                tp->ucopy.dma_chan = get_softnet_dma();
+                                tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
 
                         if (tp->ucopy.dma_chan) {
                                 tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec(