[Bug 1930637] Re: ath11k WIFI not working in proposed kernel 5.11.0-19-generic

Actually even I don't know why there is a verification-needed-focal
tag.... |||

** Tags removed: verification-needed-focal
** Tags added: verification-done-focal

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
https://bugs.launchpad.net/bugs/1930637

Title:
ath11k WIFI not working in proposed kernel 5.11.0-19-generic

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

Bug description:
[SRU Justification]

[Impact]

Bug 1928857 pulls stable patches from v5.11.20, which contains commit
dc764382762e {"bus: mhi: core: Process execution environment changes
serially") that cause a regression on ath11k cards and fails device
init:

mhi mhi0: MHI did not enter SBL

[Fix]

Upsteram commit 4884362f6977 ("bus: mhi: core: Download AMSS image
from appropriate function"), also landed to v5.12.6 but not v5.11
stable tree, has fixed this.

[Test Case]

Tested on Dell XPS 13 9310. No longer has this regression and both
WiFi/Bluetooth works fine as before.

[Where problems could occur]

The actual firmware downloading process is moved into a state machine
callback that has identical semantics with before. Additions or removals
to this in the future may change the timing of fw being dowloaded.

[Other Info]

While the commit causing this regress is backported to 5.11 onward and
fixed in v5.12 and 5.13, leaving Hirsute is the only victim.

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

See these references for more information:
 - https://bugzilla.kernel.org/show_bug.cgi?id=213055
 - https://bugs.archlinux.org/task/70849

Can you please prevent this already fixed bug from being introduced any further into Ubuntu.
Thanks.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930637/+subscriptions