Public bug reported:

Currently we have iwlwifi-8000C-13.ucode and iwlwifi-8000C-16.ucode in
Xenial, and iwlwifi ask for -19 for certain cards.

[ 6.725276] iwlwifi 0000:01:00.0: Direct firmware load for 
iwlwifi-8000C-19.ucode failed with error -2
[ 6.725289] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2
[ 6.725309] iwlwifi 0000:01:00.0: Direct firmware load for 
iwlwifi-8000C-18.ucode failed with error -2
[ 6.725320] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2
[ 6.725340] iwlwifi 0000:01:00.0: Direct firmware load for 
iwlwifi-8000C-17.ucode failed with error -2
[ 6.725351] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2
[ 6.737599] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2
[ 6.739219] iwlwifi 0000:01:00.0: loaded firmware version 16.242414.0 op_mode 
iwlmvm
[ 7.620858] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 8260, 
REV=0x208

With newer iwlwifi (in new kernel or backport-iwlwifi), it will ask for -22 and 
-21:
[ 6.724373] iwlwifi 0000:01:00.0: Direct firmware load for 
iwlwifi-8000C-21.ucode failed with error -2
[ 6.725213] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2
[ 6.725242] iwlwifi 0000:01:00.0: Direct firmware load for 
iwlwifi-8000C-20.ucode failed with error -2
[ 6.725255] iwlwifi 0000:01:00.0: Direct firmware load for iwl-dbg-cfg.ini 
failed with error -2

There are only -21 and -22 in upstream, we should pull them in for
upcoming hwe kernels.

Yakkety is not affected since it already has -21 and -22.

** Affects: hwe-next
     Importance: Undecided
     Assignee: Jesse Sung (wenchien)
         Status: In Progress

** Affects: linux-firmware (Ubuntu)
     Importance: Undecided
     Assignee: Jesse Sung (wenchien)
         Status: In Progress


** Tags: originate-from-1641555 tuchuck

** Tags added: originate-from-1641555 tuchuck

** Changed in: hwe-next
     Assignee: (unassigned) => Jesse Sung (wenchien)

** Changed in: hwe-next
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1641817

Title:
  iwlwifi asks for newer firmware

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