From: Paolo Abeni Date: Fri, 3 May 2019 15:01:38 +0000 (+0200) Subject: net: use indirect calls helpers at early demux stage X-Git-Tag: microblaze-v5.4-rc1~787^2~33^2~1 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=97ff7ffb11fe7a859a490771e7ce23f1f335176b;p=linux-2.6-microblaze.git 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 Signed-off-by: David S. Miller --- 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 */ diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index adf06159837f..b50b1af1f530 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -48,6 +48,8 @@ #include #include +INDIRECT_CALLABLE_DECLARE(void udp_v6_early_demux(struct sk_buff *)); +INDIRECT_CALLABLE_DECLARE(void tcp_v6_early_demux(struct sk_buff *)); static void ip6_rcv_finish_core(struct net *net, struct sock *sk, struct sk_buff *skb) { @@ -58,7 +60,8 @@ static void ip6_rcv_finish_core(struct net *net, struct sock *sk, ipprot = rcu_dereference(inet6_protos[ipv6_hdr(skb)->nexthdr]); if (ipprot && (edemux = READ_ONCE(ipprot->early_demux))) - edemux(skb); + INDIRECT_CALL_2(edemux, tcp_v6_early_demux, + udp_v6_early_demux, skb); } if (!skb_valid_dst(skb)) ip6_route_input(skb); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index d58bf84e0f9a..beaf28456301 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1655,7 +1655,7 @@ do_time_wait: goto discard_it; } -static void tcp_v6_early_demux(struct sk_buff *skb) +INDIRECT_CALLABLE_SCOPE void tcp_v6_early_demux(struct sk_buff *skb) { const struct ipv6hdr *hdr; const struct tcphdr *th; diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index b3fcafaf5576..07fa579dfb96 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -981,7 +981,7 @@ static struct sock *__udp6_lib_demux_lookup(struct net *net, return NULL; } -static void udp_v6_early_demux(struct sk_buff *skb) +INDIRECT_CALLABLE_SCOPE void udp_v6_early_demux(struct sk_buff *skb) { struct net *net = dev_net(skb->dev); const struct udphdr *uh;