RE: [PATCH] r8152: stop submitting rx for -EPROTO
From: Hayes Wang
Date: Wed Sep 29 2021 - 04:14:47 EST
Jason-ch Chen <jason-ch.chen@xxxxxxxxxxxx>
> Sent: Wednesday, September 29, 2021 1:18 PM
> When unplugging RTL8152 Fast Ethernet Adapter which is plugged
> into an USB HUB, the driver would get -EPROTO for bulk transfer.
> There is a high probability to get the soft/hard lockup
> information if the driver continues to submit Rx before the HUB
> completes the detection of all hub ports and issue the
> disconnect event.
I don't think it is a good idea.
For the other situations which return the same error code, you would stop the rx, too.
However, the rx may re-work after being resubmitted for the other cases.