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Subject[PATCH 5.10 41/93] smsc95xx: fix stalled rx after link change
Date
From: Aaro Koskinen <aaro.koskinen@iki.fi>

[ 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@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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


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