[PATCH net 1/2] microchip: lan865x: fix missing netif_start_queue() call on device open
From: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
Date: 2025-08-13 10:34:13
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microchip lan8650/1 10base-t1s macphy ethernet driver, networking drivers, the rest · Maintainers:
Parthiban Veerasooran, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This fixes an issue where the transmit queue is started implicitly only
the very first time the device is registered. When the device is taken
down and brought back up again (using `ip` or `ifconfig`), the transmit
queue is not restarted, causing packet transmission to hang.
Adding an explicit call to netif_start_queue() in lan865x_net_open()
ensures the transmit queue is properly started every time the device
is reopened.
Fixes: 5cd2340cb6a3 ("microchip: lan865x: add driver support for Microchip's LAN865X MAC-PHY")
Signed-off-by: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
---
drivers/net/ethernet/microchip/lan865x/lan865x.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/microchip/lan865x/lan865x.c b/drivers/net/ethernet/microchip/lan865x/lan865x.c
index dd436bdff0f8..d03f5a8de58d 100644
--- a/drivers/net/ethernet/microchip/lan865x/lan865x.c
+++ b/drivers/net/ethernet/microchip/lan865x/lan865x.c@@ -311,6 +311,8 @@ static int lan865x_net_open(struct net_device *netdev) phy_start(netdev->phydev); + netif_start_queue(netdev); + return 0; }
--
2.34.1