On Mon, 26 Nov 2018 at 10:59, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote: > > On Sat, Nov 24, 2018 at 10:25:52AM +0100, Lorenzo Bianconi wrote: > > > During removal of usb dongle, noticed many unhandled rx urb > > > below. This this patch, make it possible and early completion > > > of the rx tasklet. > > > > > > mt76x2u 1-3.4.3.1.2:1.0: rx urb failed: -71 > > > mt76x2u 1-3.4.3.1.2:1.0: rx urb failed: -71 > > > mt76x2u 1-3.4.3.1.2:1.0: rx urb failed: -71 > > > mt76x2u 1-3.4.3.1.2:1.0: rx urb failed: -71 > > If problem here is just printing errors, I think we are ok. If problem > is some hung or infinity loop, it should be fixed. > > > Hi Eduardo, > > > > I think EPROTO is a more general error (it is not strictly related to > > device removal) > > and it could happen even during normal operation. In this case I guess we should > > reinsert the urb to usb-core. > > Some (out of tree) usb host drivers returns EPROTO all the time > in some error conditions. On rt2x00 resubmitting urb resulted in > infinity loop: > https://marc.info/?t=153375128700002&r=1&w=2 > > Fix I proposed for that was counting EPROTO errors and > mark device as removed if 10 of them happened in row: > https://marc.info/?l=linux-wireless&m=153441755529960&w=2 Thanks for the feedback, guys. Would it be ok for you if I respin the patch with the suggested approach by Stanislaw? Regards, Eduardo > > Thanks > Stanislaw
