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Thu, 15 Jan 2026 18:37:41 -0800 (PST) From: insyelu To: andrew+netdev@lunn.ch, davem@davemloft.net, nic_swsd@realtek.com, tiwai@suse.de Cc: hayeswang@realtek.com, linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, insyelu Subject: [PATCH v2] net: usb: r8152: fix transmit queue timeout Date: Fri, 16 Jan 2026 10:37:25 +0800 Message-Id: <20260116023725.8095-1-insyelu@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260114025622.24348-1-insyelu@gmail.com> References: <20260114025622.24348-1-insyelu@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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: insyelu --- 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 =3D usb_submit_urb(agg->urb, GFP_ATOMIC); if (ret < 0) usb_autopm_put_interface_async(tp->intf); + else + netif_trans_update(tp->netdev); =20 out_tx_fill: return ret; --=20 2.34.1