netdev - [PATCH] net: usb: r8152: fix transmit queue timeout

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Message-Id: <20260114025622.24348-1-insyelu@gmail.com>
Date: Wed, 14 Jan 2026 10:56:22 +0800
From: insyelu <insyelu@...il.com>
To: andrew+netdev@...n.ch,
	davem@...emloft.net,
	nic_swsd@...ltek.com,
	tiwai@...e.de
Cc: hayeswang@...ltek.com,
	linux-usb@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	insyelu <insyelu@...il.com>
Subject: [PATCH] net: usb: r8152: fix transmit queue timeout

When the TX queue length reaches the threshold, the netdev watchdog
immediately detects a TX queue timeout.

This patch updates the transmit queue's trans_start timestamp upon
completion of each asynchronous USB URB submission on the TX path,
ensuring the network watchdog correctly reflects ongoing transmission
activity.

Signed-off-by: insyelu <insyelu@...il.com>
---
 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..afec602a5fdb 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1954,6 +1954,8 @@ static void write_bulk_callback(struct urb *urb)
 
 	if (!skb_queue_empty(&tp->tx_queue))
 		tasklet_schedule(&tp->tx_tl);
+
+	netif_trans_update(netdev);
 }
 
 static void intr_callback(struct urb *urb)
-- 
2.34.1