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 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>
Reviewed-by: Hayes Wang <hayeswang@realtek.com>
Link: https://patch.msgid.link/20260120015949.84996-1-insyelu@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index fa519258386070e798cbc662f1ea52eebf5394e9..880b59ed54226802a642693eaa9520805889650f 100644 (file)
--- 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;