[TCP]: Add missing I/O AT code to ipv6 side.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 32dc329762e95771b39428163a237cc3893046a4..06fa4baddf0527d224b78b33e9971d1336ea894e 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1732,6 +1732,8 @@ process:
        if (!sock_owned_by_user(sk)) {
 #ifdef CONFIG_NET_DMA
                struct tcp_sock *tp = tcp_sk(sk);
+               if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
+                       tp->ucopy.dma_chan = get_softnet_dma();
                if (tp->ucopy.dma_chan)
                        ret = tcp_v6_do_rcv(sk, skb);
                else