Comment 217 for bug 1667750

@ Stanislaw Gruszka
We once talked about a rt2800usb issue (rt2800usb stops receiving) here:
https://bugzilla.kernel.org/show_bug.cgi?id=202243#c19

Now, I'm not sure, if it is related to this xhci issue or not, because I get it sometimes on kernel 4.19, too.

After doing setsockopt PACKET_MR_PROMISC:
https://github.com/ZerBea/hcxdumptool/blob/master/hcxdumptool.c#L5513

dmesg will show this warning (in this case running an USB 2.0 controller):
[ 1687.106514] device wlp3s0f0u2 entered promiscuous mode
[ 1687.106551] audit: type=1700 audit(1567932110.523:46): dev=wlp3s0f0u2 prom=256 old_prom=0 auid=1000 uid=0 gid=0 ses=2
[ 1718.525815] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 14 failed to flush
[ 1718.558846] device wlp3s0f0u2 left promiscuous mode
[ 1718.558888] audit: type=1700 audit(1567932141.974:47): dev=wlp3s0f0u2 prom=0 old_prom=256 auid=1000 uid=0 gid=0 ses=2

The adapter stops working until it is plugged out and plugged in again:
[ 1722.950110] usb 1-2: USB disconnect, device number 5

If you think it is not related to this issue, I can open a new rt2800usb issue.