summaryrefslogtreecommitdiff
path: root/net/ipv4/ip_input.c
diff options
context:
space:
mode:
authorPaolo Abeni <pabeni@redhat.com>2019-05-03 18:01:38 +0300
committerDavid S. Miller <davem@davemloft.net>2019-05-05 20:38:04 +0300
commit97ff7ffb11fe7a859a490771e7ce23f1f335176b (patch)
tree0b6bcf8f028ecbe20eafab86c08ef06150f02c15 /net/ipv4/ip_input.c
parent0e219ae48c3bbf382ef96adf3825457315728c03 (diff)
downloadlinux-97ff7ffb11fe7a859a490771e7ce23f1f335176b.tar.xz
net: use indirect calls helpers at early demux stage
So that we avoid another indirect call per RX packet, if early demux is enabled. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 8d78de4b0304..ed97724c5e33 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -309,6 +309,8 @@ drop:
return true;
}
+INDIRECT_CALLABLE_DECLARE(int udp_v4_early_demux(struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int tcp_v4_early_demux(struct sk_buff *));
static int ip_rcv_finish_core(struct net *net, struct sock *sk,
struct sk_buff *skb, struct net_device *dev)
{
@@ -326,7 +328,8 @@ static int ip_rcv_finish_core(struct net *net, struct sock *sk,
ipprot = rcu_dereference(inet_protos[protocol]);
if (ipprot && (edemux = READ_ONCE(ipprot->early_demux))) {
- err = edemux(skb);
+ err = INDIRECT_CALL_2(edemux, tcp_v4_early_demux,
+ udp_v4_early_demux, skb);
if (unlikely(err))
goto drop_error;
/* must reload iph, skb->head might have changed */