on kernel >= 5.17, iwlmvm: disagrees about version of symbol iwl_mei_tx_copy_to_csme

[You-Sheng Yang]

Starting from backport-iwlwifi-dkms upstream revision 9674, commit 6dec03d0ad7b ("[NOUPSTREAM] iwlwifi: mei: align the code with upstream") specifically, in drivers/net/wireless/intel/iwlwifi/Kconfig:

  config IWLMEI
      ...
      depends on WLAN_VENDOR_INTEL_MEI || !KERNEL_5_17

The least version to enable iwlmei has been lowered to 5.17, and therefore it's currently built but not installed by dkms when compiled against linux-oem-5.17 or newer.

This causes a problem that:

  iwlmvm: disagrees about version of symbol iwl_mei_tx_copy_to_csme
  iwlmvm: Unknown symbol iwl_mei_tx_copy_to_csme (err -22)
  iwlmvm: disagrees about version of symbol iwl_mei_register
  iwlmvm: Unknown symbol iwl_mei_register (err -22)
  iwlmvm: disagrees about version of symbol iwl_mei_set_netdev
  iwlmvm: Unknown symbol iwl_mei_set_netdev (err -22)

[You-Sheng Yang (vicamo)]

Built modules (along with patch for bug 1975593, compat renaming):

$ ls /lib/modules/5.1*/updates/dkms
/lib/modules/5.15.0-33-generic/updates/dkms:
cfg80211.ko iwlmvm.ko iwlwifi-compat.ko iwlwifi.ko iwlxvt.ko mac80211.ko

/lib/modules/5.17.0-1003-oem/updates/dkms:
cfg80211.ko iwlmei.ko iwlmvm.ko iwlwifi-compat.ko iwlwifi.ko iwlxvt.ko mac80211.ko

/lib/modules/5.18.0-3-generic/updates/dkms:
cfg80211.ko iwlmei.ko iwlmvm.ko iwlwifi-compat.ko iwlwifi.ko iwlxvt.ko mac80211.ko

[You-Sheng Yang (vicamo)]

PPA: https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1975573

[You-Sheng Yang (vicamo)]

debdiff for kinetic 22.10

[You-Sheng Yang (vicamo)]

debdiff for jammy 22.04

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "backport-iwlwifi-dkms_9858-0ubuntu5.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[You-Sheng Yang (vicamo)]

update kinetic debdiff to rebase on 9858-0ubuntu5.

[Launchpad Janitor (janitor)]

This bug was fixed in the package backport-iwlwifi-dkms - 9858-0ubuntu6

---------------
backport-iwlwifi-dkms (9858-0ubuntu6) kinetic; urgency=medium

  [ You-Sheng Yang ]
  * install iwlmei when compiled against kernel >= 5.17. (LP: #1975573)

  * compat: rename built module to iwlwifi-compat.ko (LP: #1975593)

  [ Dimitri John Ledkov ]
  * dkms: bump obsoleted by to 5.20.0 kernel
  * backport: patch backport headers to support CFI (LP: #1980484)

 -- Dimitri John Ledkov <email address hidden> Mon, 11 Jul 2022 16:46:24 +0100

[You-Sheng Yang (vicamo)]

Turns out this becomes a problem as described in bug 1987312. Stop SRU back to jammy.