Re: [PATCH net-next v3 2/5] virtio-net: transmit napi

[Jason Wang]

On 2017年04月25日 01:49, Willem de Bruijn wrote:
@@ -1371,8 +1419,10 @@ static int virtnet_close(struct net_device *dev)
        /* Make sure refill_work doesn't re-enable napi! */
        cancel_delayed_work_sync(&vi->refill);
  
-	for (i = 0; i < vi->max_queue_pairs; i++)
+       for (i = 0; i < vi->max_queue_pairs; i++) {
                napi_disable(&vi->rq[i].napi);
+               napi_disable(&vi->sq[i].napi);
+       }

Looks like this will wait for ever if napi_tx is false because we never 
enable the NAPI so we will wait for NAPI_STATE_SCHED to be cleared.

Thanks