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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1745130

Title:
  Support rfkill-any led trigger for Fujitsu u727

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  == SRU Justification ==
  This bug was reported against a Fujitsu u7x7 laptop series based on Skylake hardware.
  It has a single rfkill button and a single LED for wlan and bluetooth. Both 
  drivers currently provide a single rfkill trigger, so the led could
  just be assigned to one. This was resolved by mainline commit 9b8e34e211, which added a 
  "rfkill-any" led trigger to correctly handle the led with multiple
  rfkill devices. That was added by one of the fujitsu-laptop maintainers and 
  the driver sets it as the default trigger.

  Commit 9b8e34e211b1 is in mainline as of 4.11-rc1.

  == Fix ==
  commit 9b8e34e211b15af429b72388a8f2b3b1823d172e
  Author: Michał Kępień <kernel@xxxxxxxxxx>
  Date:   Fri Jan 6 07:07:47 2017 +0100

      rfkill: Add rfkill-any LED trigger

  == Regression Potential ==
  Medium.  This commit affects all arches, but it has been in mainline since
  4.11-rc1 with no reported issues.

  == Test Case ==
  A test kernel was built with this patch and tested by the original bug reporter.
  The bug reporter states the test kernel resolved the bug.


  == Original Bug Description ==
  I got new HW from our supplier, which is the Fujitsu u7x7 laptop series based on Skylake hardware.
  It has a single rfkill button and a single LED for wlan and bluetooth. Both device driver currently provide a single rfkill trigger, so the led could just be assigned to one. As a result the upstream kernel got a new "rfkill-any" led trigger to correctly handle the led with multiple rfkill devices. That was added by one of the fujitsu-laptop maintainers and the driver sets it as the default trigger.

  commit 9b8e34e211b15af429b72388a8f2b3b1823d172e
  Author: Michał Kępień <kernel@xxxxxxxxxx>
  Date:   Fri Jan 6 07:07:47 2017 +0100

      rfkill: Add rfkill-any LED trigger

  Normally I would simply patch the affected modules using DKMS, like the i915_bpo driver, fujitsu-laptop and snd_hda_codec_realtek to support the HW without messing with the kernel packages.
  I'm currently waiting for some reviews, like https://www.spinics.net/lists/platform-driver-x86/msg14606.html

  But the rfkill support is compiled in, so I can't patch it using DKMS.

  So my first proposed fix would be to include a backport of this patch.
  Alternatively rfkill can be compiled as a module, so I can patch it
  and provide an updated module.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-4.4.0-111-generic 4.4.0-111.134~14.04.1
  ProcVersionSignature: Ubuntu 4.4.0-111.134~14.04.1-generic 4.4.98
  Uname: Linux 4.4.0-111-generic i686
  ApportVersion: 2.14.1-0ubuntu3.27
  Architecture: i386
  Date: Wed Jan 24 10:48:28 2018
  SourcePackage: linux-lts-xenial
  UpgradeStatus: No upgrade log present (probably fresh install)

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