commit 7487449c86c65202b3b725c4524cb48dd65e4e6f
author Paolo Abeni <pabeni@redhat.com> Thu Sep 28 15:51:36 2017 +0200
committer David S. Miller <davem@davemloft.net> Sun Oct 01 03:55:47 2017 +0100
tree 4adea181ccd96b769cf011bad6312fe6e07543b3
parent d41bb33ba33b8f8debe54ed36be6925eb496e354

IPv4: early demux can return an error code

Currently no error is emitted, but this infrastructure will
used by the next patch to allow source address validation
for mcast sockets.
Since early demux can do a route lookup and an ipv4 route
lookup can return an error code this is consistent with the
current ipv4 route infrastructure.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/tcp.h

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3bc910a..89974c5 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -345,7 +345,7 @@ void tcp_v4_err(struct sk_buff *skb, u32);
 
 void tcp_shutdown(struct sock *sk, int how);
 
-void tcp_v4_early_demux(struct sk_buff *skb);
+int tcp_v4_early_demux(struct sk_buff *skb);
 int tcp_v4_rcv(struct sk_buff *skb);
 
 int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);