[PATCH] USB: usbnet (7/9) module for CDC Ethernet

Makes the CDC Ethernet support live in a separate driver module.
This module is a bit special since it exports utility functions
that are reused by the the Zaurus and RNDIS drivers, but it's
not "core" like usbnet itself.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/net/Kconfig

@@ -137,35 +137,6 @@ config USB_PL2301
 	  Choose this option if you're using a host-to-host cable
 	  with one of these chips.
 
-comment "Intelligent USB Devices/Gadgets"
-	depends on USB_USBNET
-
-config USB_CDCETHER
-	boolean "CDC Ethernet support (smart devices such as cable modems)"
-	depends on USB_USBNET
-	default y
-	help
-	  This option supports devices conforming to the Communication Device
-	  Class (CDC) Ethernet Control Model, a specification that's easy to
-	  implement in device firmware.  The CDC specifications are available
-	  from <http://www.usb.org/>.
-	  
-	  CDC Ethernet is an implementation option for DOCSIS cable modems
-	  that support USB connectivity, used for non-Microsoft USB hosts.
-	  The Linux-USB CDC Ethernet Gadget driver is an open implementation.
- 	  This driver should work with at least the following devices:
-
- 	    * Ericsson PipeRider (all variants)
- 	    * Motorola (DM100 and SB4100)
- 	    * Broadcom Cable Modem (reference design)
- 	    * Toshiba PCX1100U
-	    * ...
-
-	  This driver creates an interface named "ethX", where X depends on
-	  what other networking devices you have in use.  However, if the
-	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
-	  name is used instead.
-
 comment "Drivers built using the usbnet core"
 
 config USB_NET_AX8817X
@@ -197,6 +168,32 @@ config USB_NET_AX8817X
 	  what other networking devices you have in use.
 
 
+config USB_NET_CDCETHER
+	tristate "CDC Ethernet support (smart devices such as cable modems)"
+	depends on USB_USBNET
+	default y
+	help
+	  This option supports devices conforming to the Communication Device
+	  Class (CDC) Ethernet Control Model, a specification that's easy to
+	  implement in device firmware.  The CDC specifications are available
+	  from <http://www.usb.org/>.
+
+	  CDC Ethernet is an implementation option for DOCSIS cable modems
+	  that support USB connectivity, used for non-Microsoft USB hosts.
+	  The Linux-USB CDC Ethernet Gadget driver is an open implementation.
+ 	  This driver should work with at least the following devices:
+
+ 	    * Ericsson PipeRider (all variants)
+ 	    * Motorola (DM100 and SB4100)
+ 	    * Broadcom Cable Modem (reference design)
+ 	    * Toshiba PCX1100U
+	    * ...
+
+	  This driver creates an interface named "ethX", where X depends on
+	  what other networking devices you have in use.  However, if the
+	  IEEE 802 "local assignment" bit is set in the address, a "usbX"
+	  name is used instead.
+
 config USB_NET_GL620A
 	tristate "GeneSys GL620USB-A based cables"
 	depends on USB_USBNET
@@ -280,6 +277,7 @@ config USB_EPSON2888
 config USB_NET_ZAURUS
 	tristate "Sharp Zaurus (stock ROMs) and compatible"
 	depends on USB_USBNET
+	select USB_NET_CDCETHER
 	select CRC32
 	default y
 	help

drivers/usb/net/Makefile

@@ -7,6 +7,7 @@ obj-$(CONFIG_USB_KAWETH)	+= kaweth.o
 obj-$(CONFIG_USB_PEGASUS)	+= pegasus.o
 obj-$(CONFIG_USB_RTL8150)	+= rtl8150.o
 obj-$(CONFIG_USB_NET_AX8817X)	+= asix.o
+obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o
 obj-$(CONFIG_USB_NET_GL620A)	+= gl620a.o
 obj-$(CONFIG_USB_NET_NET1080)	+= net1080.o
 obj-$(CONFIG_USB_NET_CDC_SUBSET)	+= cdc_subset.o