e1000e: Use device_set_wakeup_enable

Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set/unset this bit whenever WOL is enabled/disabled using
e1000_set_wol().  Accordingly, use device_can_wakeup() for checking
if wake-up is supported by the device.

Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index 70c11c811a08..62421ce96311 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -1713,7 +1713,8 @@ static void e1000_get_wol(struct net_device *netdev,
         wol->supported = 0;
         wol->wolopts = 0;
 
-        if (!(adapter->flags & FLAG_HAS_WOL))
+        if (!(adapter->flags & FLAG_HAS_WOL) ||
+            !device_can_wakeup(&adapter->pdev->dev))
                 return;
 
         wol->supported = WAKE_UCAST | WAKE_MCAST |
@@ -1751,7 +1752,8 @@ static int e1000_set_wol(struct net_device *netdev,
         if (wol->wolopts & WAKE_MAGICSECURE)
                 return -EOPNOTSUPP;
 
-        if (!(adapter->flags & FLAG_HAS_WOL))
+        if (!(adapter->flags & FLAG_HAS_WOL) ||
+            !device_can_wakeup(&adapter->pdev->dev))
                 return wol->wolopts ? -EOPNOTSUPP : 0;
 
         /* these settings will always override what we currently have */
@@ -1770,6 +1772,8 @@ static int e1000_set_wol(struct net_device *netdev,
         if (wol->wolopts & WAKE_ARP)
                 adapter->wol |= E1000_WUFC_ARP;
 
+        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
         return 0;
 }