44 lines
1.1 KiB
Diff
44 lines
1.1 KiB
Diff
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diff --git a/net/core/dev.c b/net/core/dev.c
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index d23742f..1f0415f 100644
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--- a/net/core/dev.c
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+++ b/net/core/dev.c
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@@ -3168,6 +3168,9 @@ void netdev_rx_handler_unregister(struct net_device *dev)
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}
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EXPORT_SYMBOL_GPL(netdev_rx_handler_unregister);
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+int (*athrs_fast_nat_recv)(struct sk_buff *skb) __rcu __read_mostly;
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+EXPORT_SYMBOL_GPL(athrs_fast_nat_recv);
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+
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static int __netif_receive_skb(struct sk_buff *skb)
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{
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struct packet_type *ptype, *pt_prev;
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@@ -3177,6 +3180,7 @@ static int __netif_receive_skb(struct sk_buff *skb)
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bool deliver_exact = false;
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int ret = NET_RX_DROP;
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__be16 type;
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+ int (*fast_recv)(struct sk_buff *skb);
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net_timestamp_check(!netdev_tstamp_prequeue, skb);
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@@ -3194,10 +3198,18 @@ static int __netif_receive_skb(struct sk_buff *skb)
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skb_reset_transport_header(skb);
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skb_reset_mac_len(skb);
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- pt_prev = NULL;
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-
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rcu_read_lock();
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+ fast_recv = rcu_dereference(athrs_fast_nat_recv);
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+ if (fast_recv) {
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+ if (fast_recv(skb)) {
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+ rcu_read_unlock();
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+ return NET_RX_SUCCESS;
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+ }
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+ }
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+
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+ pt_prev = NULL;
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+
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another_round:
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__this_cpu_inc(softnet_data.processed);
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