RE: [PATCH] net: usb: r8152: fix transmit queue timeout

[Hayes Wang <hayeswang@realtek.com>]

lu lu <insyelu@gmail.com>
> Sent: Monday, January 19, 2026 2:58 PM
[...]
> > Therefore, what needs to be done is to update the timestamp when the TX queue is stopped.
> > Updating trans_start while the TX queue is not stopped is useless.
> if (netif_queue_stopped(tp->netdev)) {
>     if (skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
>         netif_wake_queue(tp->netdev);
>     else
>         netif_trans_update(tp->netdev);
> }
> This change continuously updates the trans_start value, even when the
> TX queue has been stopped and its length exceeds the threshold.
> This may prevent the watchdog timer from ever timing out, thereby
> masking potential transmission stall issues.
> 
> The timestamp should be updated only upon successful URB submission to
> accurately reflect that the transport layer is still operational.

Although I think a URB error and a transmission stall are different,
I am fine with the simpler approach in v2.

Best Regards,
Hayes