Commit 6bf6be11 authored by Chen Yu's avatar Chen Yu Committed by Jeff Kirsher

e1000e: Do not wake up the system via WOL if device wakeup is disabled

Currently the system will be woken up via WOL(Wake On LAN) even if the
device wakeup ability has been disabled via sysfs:
 cat /sys/devices/pci0000:00/0000:00:1f.6/power/wakeup
 disabled

The system should not be woken up if the user has explicitly
disabled the wake up ability for this device.

This patch clears the WOL ability of this network device if the
user has disabled the wake up ability in sysfs.

Fixes: bc7f75fa ("[E1000E]: New pci-express e1000 driver")
Reported-by: default avatar"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarChen Yu <yu.c.chen@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent b8ad540d
...@@ -6611,11 +6611,17 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime) ...@@ -6611,11 +6611,17 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
struct net_device *netdev = pci_get_drvdata(pdev); struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw; struct e1000_hw *hw = &adapter->hw;
u32 ctrl, ctrl_ext, rctl, status; u32 ctrl, ctrl_ext, rctl, status, wufc;
/* Runtime suspend should only enable wakeup for link changes */
u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol;
int retval = 0; int retval = 0;
/* Runtime suspend should only enable wakeup for link changes */
if (runtime)
wufc = E1000_WUFC_LNKC;
else if (device_may_wakeup(&pdev->dev))
wufc = adapter->wol;
else
wufc = 0;
status = er32(STATUS); status = er32(STATUS);
if (status & E1000_STATUS_LU) if (status & E1000_STATUS_LU)
wufc &= ~E1000_WUFC_LNKC; wufc &= ~E1000_WUFC_LNKC;
...@@ -6672,7 +6678,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime) ...@@ -6672,7 +6678,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
if (adapter->hw.phy.type == e1000_phy_igp_3) { if (adapter->hw.phy.type == e1000_phy_igp_3) {
e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw); e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw);
} else if (hw->mac.type >= e1000_pch_lpt) { } else if (hw->mac.type >= e1000_pch_lpt) {
if (!(wufc & (E1000_WUFC_EX | E1000_WUFC_MC | E1000_WUFC_BC))) if (wufc && !(wufc & (E1000_WUFC_EX | E1000_WUFC_MC | E1000_WUFC_BC)))
/* ULP does not support wake from unicast, multicast /* ULP does not support wake from unicast, multicast
* or broadcast. * or broadcast.
*/ */
......
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