CONFIG_MACVTAP should be enabled in kernel for Oneiric

Seems there are two aliied configuration options MACVLAN and MACVTAP. Both are currently experimental.

    config MACVLAN
        tristate "MAC-VLAN support (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        ---help---
          This allows one to create virtual interfaces that map packets to
          or from specific MAC addresses to a particular interface.

          Macvlan devices can be added using the "ip" command from the
          iproute2 package starting with the iproute2-2.6.23 release:

          "ip link add link <real dev> [ address MAC ] [ NAME ] type macvlan"

          To compile this driver as a module, choose M here: the module
          will be called macvlan.

    config MACVTAP
        tristate "MAC-VLAN based tap driver (EXPERIMENTAL)"
        depends on MACVLAN
        help
          This adds a specialized tap character device driver that is based
          on the MAC-VLAN network interface, called macvtap. A macvtap device
          can be added in the same way as a macvlan device, using 'type
          macvlan', and then be accessed through the tap user space interface.

          To compile this driver as a module, choose M here: the module
          will be called macvtap.

So far we do have MACVLAN turned on:

    debian.master/config/config.common.ubuntu:CONFIG_MACVLAN=m
    debian.master/config/config.common.ubuntu:# CONFIG_MACVTAP is not set

As they seem to be opt-in devices and seem to be self contained it seems safe to enable this. Will spin a patch and send it to kernel-team@ for review.

This bug was fixed in the package linux - 3.0.0-8.11

---------------
linux (3.0.0-8.11) oneiric; urgency=low

  [ Andy Whitcroft ]

  * [Config] Enable CONFIG_MACVTAP=m
    - LP: #822601

  [ Colin Watson ]

  * Deliver more Atheros, Ralink, and iwlagn NIC drivers to d-i

  [ Stefan Bader ]

  * (config) Package macvlan and macvtap for virtual

  [ Tim Gardner ]

  * [Config] Clean up tools rules
  * [Config] Package x86_energy_perf_policy and turbostat
    - LP: #797556

  [ Upstream Kernel Changes ]

  * dell-wmi: Add keys for Dell XPS L502X
    - LP: #815914
  * hfsplus: ensure bio requests are not smaller than the hardware sectors
    - LP: #734883
  * Ecryptfs: Add mount option to check uid of device being mounted =
    expect uid
    - LP: #732628
    - CVE-2011-1833
  * ideapad: define cfg bits and create sysfs node for cfg
  * ideapad: let camera_power node invisiable if no camera
  * ideapad: add backlight driver
  * ideapad: add missing ideapad_input_exit in ideapad_acpi_add error path
  * eCryptfs: Fix payload_len unitialized variable warning
  * eCryptfs: fix compile error
  * eCryptfs: Return error when lower file pointer is NULL
  * mac80211: be more careful in suspend/resume
    - LP: #811214
 -- Leann Ogasawara <email address hidden> Mon, 08 Aug 2011 06:23:16 -0700