[NETFILTER]: Put netfilter Kconfig options into dedicated submenu.

net/Kconfig

@@ -58,66 +58,6 @@ config NETLINK_DEV
 	  the real netlink socket.
 	  This is a backward compatibility option, choose Y for now.
 
-config NETFILTER
-	bool "Network packet filtering (replaces ipchains)"
-	---help---
-	  Netfilter is a framework for filtering and mangling network packets
-	  that pass through your Linux box.
-
-	  The most common use of packet filtering is to run your Linux box as
-	  a firewall protecting a local network from the Internet. The type of
-	  firewall provided by this kernel support is called a "packet
-	  filter", which means that it can reject individual network packets
-	  based on type, source, destination etc. The other kind of firewall,
-	  a "proxy-based" one, is more secure but more intrusive and more
-	  bothersome to set up; it inspects the network traffic much more
-	  closely, modifies it and has knowledge about the higher level
-	  protocols, which a packet filter lacks. Moreover, proxy-based
-	  firewalls often require changes to the programs running on the local
-	  clients. Proxy-based firewalls don't need support by the kernel, but
-	  they are often combined with a packet filter, which only works if
-	  you say Y here.
-
-	  You should also say Y here if you intend to use your Linux box as
-	  the gateway to the Internet for a local network of machines without
-	  globally valid IP addresses. This is called "masquerading": if one
-	  of the computers on your local network wants to send something to
-	  the outside, your box can "masquerade" as that computer, i.e. it
-	  forwards the traffic to the intended outside destination, but
-	  modifies the packets to make it look like they came from the
-	  firewall box itself. It works both ways: if the outside host
-	  replies, the Linux box will silently forward the traffic to the
-	  correct local computer. This way, the computers on your local net
-	  are completely invisible to the outside world, even though they can
-	  reach the outside and can receive replies. It is even possible to
-	  run globally visible servers from within a masqueraded local network
-	  using a mechanism called portforwarding. Masquerading is also often
-	  called NAT (Network Address Translation).
-
-	  Another use of Netfilter is in transparent proxying: if a machine on
-	  the local network tries to connect to an outside host, your Linux
-	  box can transparently forward the traffic to a local server,
-	  typically a caching proxy server.
-
-	  Various modules exist for netfilter which replace the previous
-	  masquerading (ipmasqadm), packet filtering (ipchains), transparent
-	  proxying, and portforwarding mechanisms. Please see
-	  <file:Documentation/Changes> under "iptables" for the location of
-	  these packages.
-
-	  Make sure to say N to "Fast switching" below if you intend to say Y
-	  here, as Fast switching currently bypasses netfilter.
-
-	  Chances are that you should say Y here if you compile a kernel which
-	  will run as a router and N for regular hosts. If unsure, say N.
-
-config NETFILTER_DEBUG
-	bool "Network packet filtering debugging"
-	depends on NETFILTER
-	help
-	  You can say Y here if you want to get additional messages useful in
-	  debugging the netfilter code.
-
 config UNIX
 	tristate "Unix domain sockets"
 	---help---
@@ -208,6 +148,129 @@ config IPV6
 
 source "net/ipv6/Kconfig"
 
+config DECNET
+	tristate "DECnet Support"
+	---help---
+	  The DECnet networking protocol was used in many products made by
+	  Digital (now Compaq).  It provides reliable stream and sequenced
+	  packet communications over which run a variety of services similar
+	  to those which run over TCP/IP.
+
+	  To find some tools to use with the kernel layer support, please
+	  look at Patrick Caulfield's web site:
+	  <http://linux.dreamtime.org/decnet/>.
+
+	  More detailed documentation is available in
+	  <file:Documentation/networking/decnet.txt>.
+
+	  Be sure to say Y to "/proc file system support" and "Sysctl support"
+	  below when using DECnet, since you will need sysctl support to aid
+	  in configuration at run time.
+
+	  The DECnet code is also available as a module ( = code which can be
+	  inserted in and removed from the running kernel whenever you want).
+	  The module is called decnet.
+
+source "net/decnet/Kconfig"
+
+config BRIDGE
+	tristate "802.1d Ethernet Bridging"
+	depends on INET
+	---help---
+	  If you say Y here, then your Linux box will be able to act as an
+	  Ethernet bridge, which means that the different Ethernet segments it
+	  is connected to will appear as one Ethernet to the participants.
+	  Several such bridges can work together to create even larger
+	  networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
+	  As this is a standard, Linux bridges will cooperate properly with
+	  other third party bridge products.
+
+	  In order to use the Ethernet bridge, you'll need the bridge
+	  configuration tools; see <file:Documentation/networking/bridge.txt>
+	  for location. Please read the Bridge mini-HOWTO for more
+	  information.
+
+	  If you enable iptables support along with the bridge support then you
+	  turn your bridge into a bridging firewall.
+	  iptables will then see the IP packets being bridged, so you need to
+	  take this into account when setting up your firewall rules.
+
+	  If you want to compile this code as a module ( = code which can be
+	  inserted in and removed from the running kernel whenever you want),
+	  say M here and read <file:Documentation/modules.txt>.  The module
+	  will be called bridge.
+
+	  If unsure, say N.
+
+menuconfig NETFILTER
+	bool "Network packet filtering (replaces ipchains)"
+	---help---
+	  Netfilter is a framework for filtering and mangling network packets
+	  that pass through your Linux box.
+
+	  The most common use of packet filtering is to run your Linux box as
+	  a firewall protecting a local network from the Internet. The type of
+	  firewall provided by this kernel support is called a "packet
+	  filter", which means that it can reject individual network packets
+	  based on type, source, destination etc. The other kind of firewall,
+	  a "proxy-based" one, is more secure but more intrusive and more
+	  bothersome to set up; it inspects the network traffic much more
+	  closely, modifies it and has knowledge about the higher level
+	  protocols, which a packet filter lacks. Moreover, proxy-based
+	  firewalls often require changes to the programs running on the local
+	  clients. Proxy-based firewalls don't need support by the kernel, but
+	  they are often combined with a packet filter, which only works if
+	  you say Y here.
+
+	  You should also say Y here if you intend to use your Linux box as
+	  the gateway to the Internet for a local network of machines without
+	  globally valid IP addresses. This is called "masquerading": if one
+	  of the computers on your local network wants to send something to
+	  the outside, your box can "masquerade" as that computer, i.e. it
+	  forwards the traffic to the intended outside destination, but
+	  modifies the packets to make it look like they came from the
+	  firewall box itself. It works both ways: if the outside host
+	  replies, the Linux box will silently forward the traffic to the
+	  correct local computer. This way, the computers on your local net
+	  are completely invisible to the outside world, even though they can
+	  reach the outside and can receive replies. It is even possible to
+	  run globally visible servers from within a masqueraded local network
+	  using a mechanism called portforwarding. Masquerading is also often
+	  called NAT (Network Address Translation).
+
+	  Another use of Netfilter is in transparent proxying: if a machine on
+	  the local network tries to connect to an outside host, your Linux
+	  box can transparently forward the traffic to a local server,
+	  typically a caching proxy server.
+
+	  Various modules exist for netfilter which replace the previous
+	  masquerading (ipmasqadm), packet filtering (ipchains), transparent
+	  proxying, and portforwarding mechanisms. Please see
+	  <file:Documentation/Changes> under "iptables" for the location of
+	  these packages.
+
+	  Make sure to say N to "Fast switching" below if you intend to say Y
+	  here, as Fast switching currently bypasses netfilter.
+
+	  Chances are that you should say Y here if you compile a kernel which
+	  will run as a router and N for regular hosts. If unsure, say N.
+
+if NETFILTER
+
+config NETFILTER_DEBUG
+	bool "Network packet filtering debugging"
+	depends on NETFILTER
+	help
+	  You can say Y here if you want to get additional messages useful in
+	  debugging the netfilter code.
+
+source "net/ipv4/netfilter/Kconfig"
+source "net/ipv6/netfilter/Kconfig"
+source "net/decnet/netfilter/Kconfig"
+source "net/bridge/netfilter/Kconfig"
+
+endif
+
 source "net/xfrm/Kconfig"
 
 source "net/sctp/Kconfig"
@@ -370,62 +433,6 @@ config ATALK
 
 source "drivers/net/appletalk/Kconfig"
 
-config DECNET
-	tristate "DECnet Support"
-	---help---
-	  The DECnet networking protocol was used in many products made by
-	  Digital (now Compaq).  It provides reliable stream and sequenced
-	  packet communications over which run a variety of services similar
-	  to those which run over TCP/IP.
-
-	  To find some tools to use with the kernel layer support, please
-	  look at Patrick Caulfield's web site:
-	  <http://linux.dreamtime.org/decnet/>.
-
-	  More detailed documentation is available in
-	  <file:Documentation/networking/decnet.txt>.
-
-	  Be sure to say Y to "/proc file system support" and "Sysctl support"
-	  below when using DECnet, since you will need sysctl support to aid
-	  in configuration at run time.
-
-	  The DECnet code is also available as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module is called decnet.
-
-source "net/decnet/Kconfig"
-
-config BRIDGE
-	tristate "802.1d Ethernet Bridging"
-	depends on INET
-	---help---
-	  If you say Y here, then your Linux box will be able to act as an
-	  Ethernet bridge, which means that the different Ethernet segments it
-	  is connected to will appear as one Ethernet to the participants.
-	  Several such bridges can work together to create even larger
-	  networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
-	  As this is a standard, Linux bridges will cooperate properly with
-	  other third party bridge products.
-
-	  In order to use the Ethernet bridge, you'll need the bridge
-	  configuration tools; see <file:Documentation/networking/bridge.txt>
-	  for location. Please read the Bridge mini-HOWTO for more
-	  information.
-
-	  If you enable iptables support along with the bridge support then you
-	  turn your bridge into a bridging firewall.
-	  iptables will then see the IP packets being bridged, so you need to
-	  take this into account when setting up your firewall rules.
-
-	  If you want to compile this code as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want),
-	  say M here and read <file:Documentation/modules.txt>.  The module
-	  will be called bridge.
-
-	  If unsure, say N.
-
-source "net/bridge/netfilter/Kconfig"
-
 config X25
 	tristate "CCITT X.25 Packet Layer (EXPERIMENTAL)"
 	depends on EXPERIMENTAL

net/decnet/Kconfig

@@ -35,5 +35,3 @@ config DECNET_ROUTE_FWMARK
 	  packets with different FWMARK ("firewalling mark") values
 	  (see ipchains(8), "-m" argument).
 
-source "net/decnet/netfilter/Kconfig"
-

net/ipv4/Kconfig

@@ -374,6 +374,5 @@ config INET_IPCOMP
 	  
 	  If unsure, say Y.
 
-source "net/ipv4/netfilter/Kconfig"
 source "net/ipv4/ipvs/Kconfig"
 

net/ipv6/Kconfig

@@ -63,4 +63,3 @@ config IPV6_TUNNEL
 
 	  If unsure, say N.
 
-source "net/ipv6/netfilter/Kconfig"