[PATCH v2] net: usb: r8152: fix transmit queue timeout

Mingj Ye posted 1 patch 2 weeks, 4 days ago
drivers/net/usb/r8152.c | 2 ++
1 file changed, 2 insertions(+)
[PATCH v2] net: usb: r8152: fix transmit queue timeout
Posted by Mingj Ye 2 weeks, 4 days ago
When the TX queue length reaches the threshold, the netdev watchdog
immediately detects a TX queue timeout.

This patch updates the trans_start timestamp of the transmit queue
on every asynchronous USB URB submission along the transmit path,
ensuring that the network watchdog accurately reflects ongoing
transmission activity.

Signed-off-by: Mingj Ye <insyelu@gmail.com>
---
v2: Update the transmit timestamp when submitting the USB URB.
---
 drivers/net/usb/r8152.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index fa5192583860..880b59ed5422 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2449,6 +2449,8 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 	ret = usb_submit_urb(agg->urb, GFP_ATOMIC);
 	if (ret < 0)
 		usb_autopm_put_interface_async(tp->intf);
+	else
+		netif_trans_update(tp->netdev);
 
 out_tx_fill:
 	return ret;
-- 
2.34.1
RE: [PATCH v2] net: usb: r8152: fix transmit queue timeout
Posted by Hayes Wang 2 weeks, 4 days ago
> From: Mingj Ye <insyelu@gmail.com>
> Sent: Tuesday, January 20, 2026 10:00 AM
[...]
> When the TX queue length reaches the threshold, the netdev watchdog
> immediately detects a TX queue timeout.
> 
> This patch updates the trans_start timestamp of the transmit queue
> on every asynchronous USB URB submission along the transmit path,
> ensuring that the network watchdog accurately reflects ongoing
> transmission activity.
> 
> Signed-off-by: Mingj Ye <insyelu@gmail.com>
> ---
> v2: Update the transmit timestamp when submitting the USB URB.

Reviewed-by: Hayes Wang <hayeswang@realtek.com>

Best Regards,
Hayes