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From:   Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= <toke@toke.dk>
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To:     Luca Coelho <luciano.coelho@intel.com>
Cc:     linux-wireless@vger.kernel.org
Subject: iwlwifi devices disappear after suspend on kernel 5.17
Date:   Mon, 18 Apr 2022 13:36:05 +0200
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Hi Luca

I've started seeing issues with my iwlwifi interface going away after
suspend. I get errors like these in dmesg:

[104393.142264] wlan0: deauthenticating from 4c:60:de:ea:b8:58 by local choice (Reason: 3=DEAUTH_LEAVING)
[104393.347775] iwlmei 0000:00:16.0-13280904-7792-4fcb-a1aa-5e70cbb1e865: Couldn't get ACK from CSME on HOST_GOES_DOWN message
[104393.347876] iwlmei 0000:00:16.0-13280904-7792-4fcb-a1aa-5e70cbb1e865: failed to send the SAP_ME_MSG_CHECK_SHARED_AREA message -19

And when the host comes back up, there is no connectivity. Restarting
iwd fixes the problem.

This is on a 5.17.3 kernel (Arch Linux distribution kernel), and lspci
says the WiFi device is an "Intel Corporation Wi-Fi 6 AX201".

Any ideas? :)

-Toke