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-rw-r--r--include/net/dst.h2
-rw-r--r--include/net/lwtunnel.h4
-rw-r--r--net/core/dst.c2
-rw-r--r--net/ipv4/route.c2
4 files changed, 5 insertions, 5 deletions
diff --git a/include/net/dst.h b/include/net/dst.h
index bef2f41c7220..c0f8b6d8e707 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -468,7 +468,7 @@ INDIRECT_CALLABLE_DECLARE(int ip_local_deliver(struct sk_buff *));
/* Input packet from network to transport. */
static inline int dst_input(struct sk_buff *skb)
{
- return INDIRECT_CALL_INET(skb_dst(skb)->input,
+ return INDIRECT_CALL_INET(READ_ONCE(skb_dst(skb)->input),
ip6_input, ip_local_deliver, skb);
}
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index c306ebe379a0..eaac07d50595 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -142,8 +142,8 @@ static inline void lwtunnel_set_redirect(struct dst_entry *dst)
dst->output = lwtunnel_output;
}
if (lwtunnel_input_redirect(dst->lwtstate)) {
- dst->lwtstate->orig_input = dst->input;
- dst->input = lwtunnel_input;
+ dst->lwtstate->orig_input = READ_ONCE(dst->input);
+ WRITE_ONCE(dst->input, lwtunnel_input);
}
}
#else
diff --git a/net/core/dst.c b/net/core/dst.c
index 8f2a3138d60c..13c629dc7123 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -148,7 +148,7 @@ void dst_dev_put(struct dst_entry *dst)
WRITE_ONCE(dst->obsolete, DST_OBSOLETE_DEAD);
if (dst->ops->ifdown)
dst->ops->ifdown(dst, dev);
- dst->input = dst_discard;
+ WRITE_ONCE(dst->input, dst_discard);
dst->output = dst_discard_out;
dst->dev = blackhole_netdev;
netdev_ref_replace(dev, blackhole_netdev, &dst->dev_tracker,
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d7a534a5f1ff..75a1f9eabd6b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1687,7 +1687,7 @@ struct rtable *rt_dst_clone(struct net_device *dev, struct rtable *rt)
else if (rt->rt_gw_family == AF_INET6)
new_rt->rt_gw6 = rt->rt_gw6;
- new_rt->dst.input = rt->dst.input;
+ new_rt->dst.input = READ_ONCE(rt->dst.input);
new_rt->dst.output = rt->dst.output;
new_rt->dst.error = rt->dst.error;
new_rt->dst.lastuse = jiffies;