Ath11k possible firmware bug - traffic interruptions when a client disconnects from WLAN

[sppmaster]

I've flashed freshly compiled build with latest commits (kernel 6.1.46).
For me the issue is still there absolutely repeatable when multi to unicast is not checked.
The "workaround" option multicast_to_unicast_all '1' only masks the issue temporary but at one point it doesn't matter at all.
I'll continue to monitor how it goes/changes as time goes by.

Update - reading this post.

@Pow

In my experience the stability goes out of the window once you start seeing "ath11k c000000.wifi: failed to flush transmit queue, data pkts pending" messages in kernel log. Granted, these now are rarer compared to previous snapshot build.

My observation is that everything is fine if you don't have these error messages. Once the error message happens, the two critical issues that I'm tracking can be reproduced. Those are:

• Broadcast/multicast bug affecting IPv6 and wlan to wlan IPv4 ARP
• Traffic interruption when client wlan client disconnects

I can confirm this behaviour too with today snapshot and obviously multi to unicast is not even a workaround for the above issues.