Re: [PATCH 2/4] setup wake-on-lan before shutting down

From: Tobias Diedrich
Date: Sun May 18 2008 - 09:03:22 EST


From: Tobias Diedrich <ranma+kernel@xxxxxxxxxxxx>

When hibernating in 'shutdown' mode, after saving the image the suspend hook
is not called again.
However, if the device is in promiscous mode, wake-on-lan will not work.
This adds a shutdown hook to setup wake-on-lan before the final shutdown.

Signed-off-by: Tobias Diedrich <ranma+kernel@xxxxxxxxxxxx>

Index: linux-2.6.26-rc2.forcedwol/drivers/net/forcedeth.c
===================================================================
--- linux-2.6.26-rc2.forcedwol.orig/drivers/net/forcedeth.c 2008-05-18 13:53:02.000000000 +0200
+++ linux-2.6.26-rc2.forcedwol/drivers/net/forcedeth.c 2008-05-18 13:53:06.000000000 +0200
@@ -5827,8 +5827,23 @@
out:
return rc;
}
+
+static void nv_shutdown(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct fe_priv *np = netdev_priv(dev);
+
+ if (netif_running(dev))
+ nv_close(dev);
+
+ pci_enable_wake(pdev, PCI_D3hot, np->wolenabled);
+ pci_enable_wake(pdev, PCI_D3cold, np->wolenabled);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+}
#else
#define nv_suspend NULL
+#define nv_shutdown NULL
#define nv_resume NULL
#endif /* CONFIG_PM */

@@ -5999,6 +6014,7 @@
.remove = __devexit_p(nv_remove),
.suspend = nv_suspend,
.resume = nv_resume,
+ .shutdown = nv_shutdown,
};

static int __init init_nic(void)
--
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