[PATCH 0/1][SRU][O] Regression: MT7925 wifi fails to reconnect

AceLan Kao acelan.kao at canonical.com
Tue May 27 07:43:58 UTC 2025


From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/2111778

[Impact]
Can't reconnect the wifi(MT7925) after Oracular 6.11.0-26.26 which includes
the commit from upstream stable update
ff6a34984ba13 wifi: mt76: mt7925: Cleanup MLO settings post-disconnection

[Fix]
The commit in 6.15-rc1 fixes the issue
0ebb60da8416c wifi: mt76: mt7925: adjust rm BSS flow to prevent next
connection failure

This commit depends on many other patches which are hard to backport to
6.11 kernel.
So, simply revert ff6a34984ba13 ("wifi: mt76: mt7925: Cleanup MLO settings
post-disconnection") for now, and will submit another SRU later if MTK
could provide us a fix for 6.11 kernel.

[Test]
1. Boot up the machine with MT7925 wifi card
2. Connect to the wifi AP with ssid = "Canonical"
3. Run "sudo nmcli c down Canonical"
4. Run "sudo nmcli c up Canonical"
5. Wifi should come back and work as normal

[Where problems could occur]
The reverted commit reset the MLO settings which is a feature in WiFi 7.
Howerer, we don't support MT7925 WiFi 7 on 6.11 kernel, so it should be
safe to revert this commit.

Chia-Lin Kao (AceLan) (1):
  UBUNTU: SAUCE: Regression: MT7925 wifi fails to reconnect

 .../net/wireless/mediatek/mt76/mt7925/main.c  | 36 ++-----------------
 .../net/wireless/mediatek/mt76/mt7925/mcu.c   |  4 +--
 .../net/wireless/mediatek/mt76/mt7925/mcu.h   |  2 +-
 3 files changed, 5 insertions(+), 37 deletions(-)

-- 
2.43.0




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