[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>

7 files changed, 39 insertions, 4 deletions

diff --git a/include/net/dn.h b/include/net/dn.h
index 5551c46..c1dbbd2 100644
--- a/include/net/dn.h
+++ b/include/net/dn.h
@@ -3,6 +3,7 @@
 
 #include <linux/dn.h>
 #include <net/sock.h>
+#include <net/tcp.h>
 #include <asm/byteorder.h>
 
 typedef unsigned short dn_address;
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index f5d6512..c816708 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -19,11 +19,11 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/tcp.h>		/* only for TCP_LISTEN, damn :-( */
 #include <linux/types.h>
 #include <linux/wait.h>
 
 #include <net/sock.h>
+#include <net/tcp_states.h>
 
 #include <asm/atomic.h>
 
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index f920706..1f2e428 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -12,7 +12,6 @@
 #include <net/flow.h>
 #include <net/ip6_fib.h>
 #include <net/sock.h>
-#include <linux/tcp.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 52da5d2..7a3c437 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -255,7 +255,6 @@ struct ip_vs_daemon_user {
 #include <asm/atomic.h>                 /* for struct atomic_t */
 #include <linux/netdevice.h>		/* for struct neighbour */
 #include <net/dst.h>			/* for struct dst_entry */
-#include <net/tcp.h>
 #include <net/udp.h>
 #include <linux/compiler.h>
 
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index 5999e56..c51541e 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -47,10 +47,10 @@
 #ifndef __sctp_constants_h__
 #define __sctp_constants_h__
 
-#include <linux/tcp.h>  /* For TCP states used in sctp_sock_state_t */
 #include <linux/sctp.h>
 #include <linux/ipv6.h> /* For ipv6hdr. */
 #include <net/sctp/user.h>
+#include <net/tcp_states.h>  /* For TCP states used in sctp_sock_state_t */
 
 /* Value used for stream negotiation. */
 enum { SCTP_MAX_STREAM = 0xffff };
diff --git a/include/net/tcp.h b/include/net/tcp.h
index bc110cc..9d026d8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -36,6 +36,8 @@
 #include <net/sock.h>
 #include <net/snmp.h>
 #include <net/ip.h>
+#include <net/tcp_states.h>
+
 #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
 #include <linux/ipv6.h>
 #endif
diff --git a/include/net/tcp_states.h b/include/net/tcp_states.h
new file mode 100644
index 0000000..b9d4176
--- /dev/null
+++ b/include/net/tcp_states.h
@@ -0,0 +1,34 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		Definitions for the TCP protocol sk_state field.
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_TCP_STATES_H
+#define _LINUX_TCP_STATES_H
+
+enum {
+	TCP_ESTABLISHED = 1,
+	TCP_SYN_SENT,
+	TCP_SYN_RECV,
+	TCP_FIN_WAIT1,
+	TCP_FIN_WAIT2,
+	TCP_TIME_WAIT,
+	TCP_CLOSE,
+	TCP_CLOSE_WAIT,
+	TCP_LAST_ACK,
+	TCP_LISTEN,
+	TCP_CLOSING,	/* Now a valid state */
+
+	TCP_MAX_STATES	/* Leave at the end! */
+};
+
+#define TCP_STATE_MASK	0xF
+
+#endif	/* _LINUX_TCP_STATES_H */