SRU: https://lists.ubuntu.com/archives/kernel-team/2021-June/121014.html
(H)
** Description changed:
+ [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
+ - 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.
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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:
Invalid
Status in linux source package in Hirsute:
In Progress
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
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