Kernel source: 2.6.0-test4

I'm attaching a .config that shows this.  If I have USB enabled but
have removed all of the USB host-to-host options, I get this error

  CC [M]  drivers/usb/net/usbnet.o
drivers/usb/net/usbnet.c:2640: #error You need to configure some hardware for this driver
drivers/usb/net/usbnet.c:321: warning: `always_connected' defined but not used

Adding CONFIG_USB_AN2720, for example, eliminates the error.