From: Vlad Zakharov <Vladislav.Zakharov@xxxxxxxxxxxx> Date: Wed, 29 Mar 2017 13:41:46 +0300 > After a new NAPI_STATE_MISSED state was added to NAPI we can get into > this state and in such case we have to reschedule NAPI as some work is > still pending and we have to process it. napi_complete_done() function > returns false if we have to reschedule something (e.g. in case we were > in MISSED state) as current polling have not been completed yet. > > nps_enet driver hasn't been verifying the return value of > napi_complete_done() and has been forcibly enabling interrupts. That is > not correct as we should not enable interrupts before we have processed > all scheduled work. As a result we were getting trapped in interrupt > hanlder chain as we had never been able to disabale ethernet > interrupts again. > > So this patch makes nps_enet_poll() func verify return value of > napi_complete_done() and enable interrupts only in case all scheduled > work has been completed. > > Signed-off-by: Vlad Zakharov <vzakhar at synopsys.com> Applied. Eric, if this is really required now, we have 148 broken drivers still.
