lan78xx: Check for supported Wake-on-LAN modes

[ Upstream commit eb9ad088f96653a26b340f7c447c44cf023d5cdc ]

The driver supports a fair amount of Wake-on-LAN modes, but is not
checking that the user specified one that is supported.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Woojung Huh <Woojung.Huh@Microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 9e3f632..00ddcaf 100644 (file)
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1375,19 +1375,10 @@ static int lan78xx_set_wol(struct net_device *netdev,
        if (ret < 0)
                return ret;
 
-       pdata->wol = 0;
-       if (wol->wolopts & WAKE_UCAST)
-               pdata->wol |= WAKE_UCAST;
-       if (wol->wolopts & WAKE_MCAST)
-               pdata->wol |= WAKE_MCAST;
-       if (wol->wolopts & WAKE_BCAST)
-               pdata->wol |= WAKE_BCAST;
-       if (wol->wolopts & WAKE_MAGIC)
-               pdata->wol |= WAKE_MAGIC;
-       if (wol->wolopts & WAKE_PHY)
-               pdata->wol |= WAKE_PHY;
-       if (wol->wolopts & WAKE_ARP)
-               pdata->wol |= WAKE_ARP;
+       if (wol->wolopts & ~WAKE_ALL)
+               return -EINVAL;
+
+       pdata->wol = wol->wolopts;
 
        device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts);