[TCP]: Move the tcp sock states to net/tcp_states.h

Lots of places just needs the states, not even linux/tcp.h, where this
enum was, needs it.

This speeds up development of the refactorings as less sources are
rebuilt when things get moved from net/tcp.h.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/datagram.c

@@ -17,8 +17,8 @@
 #include <linux/ip.h>
 #include <linux/in.h>
 #include <net/sock.h>
-#include <net/tcp.h>
 #include <net/route.h>
+#include <net/tcp_states.h>
 
 int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {

net/ipv4/ipvs/ip_vs_app.c

@@ -26,6 +26,7 @@
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <net/protocol.h>
+#include <net/tcp.h>
 #include <asm/system.h>
 #include <linux/stat.h>
 #include <linux/proc_fs.h>

net/ipv4/protocol.c

@@ -40,7 +40,6 @@
 #include <linux/timer.h>
 #include <net/ip.h>
 #include <net/protocol.h>
-#include <net/tcp.h>
 #include <linux/skbuff.h>
 #include <net/sock.h>
 #include <net/icmp.h>

net/ipv4/raw.c

@@ -59,7 +59,6 @@
 #include <linux/netdevice.h>
 #include <linux/in_route.h>
 #include <linux/route.h>
-#include <linux/tcp.h>
 #include <linux/skbuff.h>
 #include <net/dst.h>
 #include <net/sock.h>
@@ -71,6 +70,7 @@
 #include <net/udp.h>
 #include <net/raw.h>
 #include <net/snmp.h>
+#include <net/tcp_states.h>
 #include <net/inet_common.h>
 #include <net/checksum.h>
 #include <net/xfrm.h>

net/ipv4/udp.c

@@ -95,7 +95,8 @@
 #include <linux/ipv6.h>
 #include <linux/netdevice.h>
 #include <net/snmp.h>
-#include <net/tcp.h>
+#include <net/ip.h>
+#include <net/tcp_states.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>
 #include <linux/proc_fs.h>