Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)"

From	Antonio Russo <aerusso@aerusso.net>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)"
Date	2026-05-16 04:10 +0200
Message-ID	<MVcDv-5s40-1@gated-at.bofh.it> (permalink)
References	<MV92V-5pLN-1@gated-at.bofh.it> <MV92V-5pLN-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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On 5/15/26 4:13 PM, Anton Shestakov wrote:
> https://lore.kernel.org/linux-bluetooth/5i35wmc4z7sz54jo5uj6ywext2enh4ik3oxmfmperqk2v5kc27@ppvm6oodzipn/
I dug into the follow-up to that bug, and there's a patch
that's been merged to bluetooth-next [1]. I'm not feeling
quite motivated right now to recompile and check that this
fixes the issue for me, but someone else might.

Best,
Antonio

[1] https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=162b1adeb057d28ad84fd8a03f3c50cf08db5c62

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Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)" Anton Shestakov <av6@dwimlabs.net> - 2026-05-16 00:20 +0200
  Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)" Antonio Russo <aerusso@aerusso.net> - 2026-05-16 04:10 +0200
  Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)" Steinar Bang <sb@dod.no> - 2026-05-16 10:40 +0200
  Bug#1136790: mt7921e: bluetooth is broken with "Bluetooth: hci0: Failed to send wmt func ctrl (-22)" Andreas Sundstrom <sunkan+debian.bugs@zappa.cx> - 2026-05-16 12:00 +0200

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