Joonwoo Park wrote:
quoted text
>     /* If no Tx and not enough Rx work done, exit the polling mode */
>     if ((!tx_cleaned && (work_done == 0)) ||
>        !netif_running(poll_dev)) {
> quit_polling:
>         if (likely(adapter->itr_setting & 3))
>             e1000_set_itr(adapter);
>         netif_rx_complete(poll_dev, napi);
>         e1000_irq_enable(adapter);

all drivers using NAPI in 2.6.24+ (NNAPI??) must return zero here, after
calling netif_rx_complete.  netif_rx_complete plus work_done != 0 causes
a bug.

quoted text
>     }
> 
>     return work_done;
> }
> 
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