[Bug 1987312] Re: IWLMEI may cause device down at resuming from s2idle

[You-Sheng Yang]

SRU: https://lists.ubuntu.com/archives/kernel-
team/2022-September/133014.html (kernel-versions)

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https://bugs.launchpad.net/bugs/1987312

Title:
  IWLMEI may cause device down at resuming from s2idle

Status in HWE Next:
  New
Status in backport-iwlwifi-dkms package in Ubuntu:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-5.17 package in Ubuntu:
  Invalid
Status in linux-oem-6.0 package in Ubuntu:
  Invalid
Status in backport-iwlwifi-dkms source package in Jammy:
  Invalid
Status in linux source package in Jammy:
  Invalid
Status in linux-oem-5.17 source package in Jammy:
  In Progress
Status in linux-oem-6.0 source package in Jammy:
  In Progress
Status in backport-iwlwifi-dkms source package in Kinetic:
  In Progress
Status in linux source package in Kinetic:
  In Progress
Status in linux-oem-5.17 source package in Kinetic:
  Invalid
Status in linux-oem-6.0 source package in Kinetic:
  Invalid

Bug description:
  [SRU Justification]

  [Impact]

  WiFi interfaces unsolicitedly down at resuming from s2idle.

  [Fix]

  Intel confirmed there is no CSME for WLAN POR for Linux. CSME for WLAN
  POR is only for Windows project design. Please remove or disable
  CONFIG_IWLMEI from Linux.

  [Test Case]

  Make sure iwlmei.ko is not built.

  [Where problems could occur]

  iwlmei was not enabled before 5.17 and was turned on automatically since
  then. This restores the state and shall not have impact on existing
  devices.

  ========== original bug report ==========

  Intel confirmed there is no CSME for WLAN POR for Linux. CSME for WLAN
  POR is only for Windows project design. Please remove or disable
  CONFIG_IWLMEI from Linux.

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