[Quantal][Precise SRU] asus-wmi: update wlan LED through rfkill led trigger

[AceLan Kao]

For this issue
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/901105

We need 2 patches from linux-next tree

commit 06d7de831dab8b93adb86e039a2f3d36604a9197
Author: AceLan Kao <acelan.kao at canonical.com>
Date:   Thu Jul 26 09:51:08 2012 +0800

    Revert "rfkill: remove dead code"

    This reverts commit 2e48928d8a0f38c1b5c81eb3f1294de8a6382c68.

    Those functions are needed and should not be removed, or
    there is no way to set the rfkill led trigger name.

    Signed-off-by: AceLan Kao <acelan.kao at canonical.com>
    Signed-off-by: Johannes Berg <johannes.berg at intel.com>

commit 154a7a7b22342ab9ccde34f583e4b730965ee515
Author: AceLan Kao <acelan.kao at canonical.com>
Date:   Fri Jul 27 16:51:59 2012 +0800

    asus-wmi: update wlan LED through rfkill led trigger

    For those machines with wapf=4, BIOS won't update the wireless LED,
    since wapf=4 means user application will take in chage of the wifi and bt.
    So, we have to update wlan LED status explicitly.

    But I found there is another wireless LED bug in launchpad and which is
    not in the wapf=4 quirk.
    So, it might be better to set wireless LED status explicitly for all
    machines.

    BugLink: https://launchpad.net/bugs/901105

    Signed-off-by: AceLan Kao <acelan.kao at canonical.com>
    Signed-off-by: Matthew Garrett <mjg at redhat.com>

Thanks.

-- 
Chia-Lin Kao(AceLan)
http://blog.acelan.idv.tw/
E-Mail: acelan.kaoATcanonical.com (s/AT/@/)