[PATCH 5.10 41/93] smsc95xx: fix stalled rx after link change

[Greg Kroah-Hartman]

From: Aaro Koskinen <aaro.koskinen@xxxxxx>

[ Upstream commit 5ab8a447bcfee1ded709e7ff5dc7608ca9f66ae2 ]

After commit 05b35e7eb9a1 ("smsc95xx: add phylib support"), link changes
are no longer propagated to usbnet. As a result, rx URB allocation won't
happen until there is a packet sent out first (this might never happen,
e.g. running just ssh server with a static IP). Fix by triggering usbnet
EVENT_LINK_CHANGE.

Fixes: 05b35e7eb9a1 ("smsc95xx: add phylib support")
Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/usb/smsc95xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index ea0d5f04dc3a..465e11dcdf12 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1178,7 +1178,10 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
 
 static void smsc95xx_handle_link_change(struct net_device *net)
 {
+	struct usbnet *dev = netdev_priv(net);
+
 	phy_print_status(net->phydev);
+	usbnet_defer_kevent(dev, EVENT_LINK_CHANGE);
 }
 
 static int smsc95xx_start_phy(struct usbnet *dev)
-- 
2.33.0