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r8169: reject unsupported WoL options 

So far unsupported WoL options are silently ignored. Change this and
reject attempts to set unsupported options. This prevents situations
where a user tries to set an unsupported WoL option and is under the
impression it was successful because ethtool doesn't complain.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2018-06-25 20:34:41 +02:00 committed by David S. Miller
parent 99672eb6c6
commit 2f533f6bd8
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/realtek/r8169.c
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@ -1712,11 +1712,14 @@ static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct rtl8169_private *tp = netdev_priv(dev);
struct device *d = tp_to_dev(tp);
if (wol->wolopts & ~WAKE_ANY)
return -EINVAL;
pm_runtime_get_noresume(d);
rtl_lock_work(tp);
tp->saved_wolopts = wol->wolopts & WAKE_ANY;
tp->saved_wolopts = wol->wolopts;
if (pm_runtime_active(d))
__rtl8169_set_wol(tp, tp->saved_wolopts);