From b4caea8aa8b4caeda2af6ef6b7f0d43c516815ee Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Fri, 26 Oct 2007 04:20:13 -0700
Subject: [PATCH] [TCP]: Add missing I/O AT code to ipv6 side.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv6/tcp_ipv6.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 32dc329762e95..06fa4baddf052 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1732,6 +1732,8 @@ static int tcp_v6_rcv(struct sk_buff *skb)
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
--
GitLab