From: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Date: Tue, 16 Oct 2007 21:24:09 +0000 (-0700)
Subject: WOL bugfix for 3c59x.c
X-Git-Tag: v2.6.24-rc1~819^2
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=1a1769f32349a188db48cf81fe306b6f841fc246;p=net-next-2.6.git

WOL bugfix for 3c59x.c

Some NICs (3c905B) can not generate PME in power state PCI_D0, while others
like 3c905C can.  Call pci_enable_wake() with PCI_D3hot should give proper
WOL for 3c905B.

Signed-off-by: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Tested-by: Harry Coin <hcoin@n4comm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 8d3893da06f..862f47223fd 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -3118,7 +3118,13 @@ static void acpi_set_WOL(struct net_device *dev)
 		iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD);
 		iowrite16(RxEnable, ioaddr + EL3_CMD);
 
-		pci_enable_wake(VORTEX_PCI(vp), 0, 1);
+		if (pci_enable_wake(VORTEX_PCI(vp), PCI_D3hot, 1)) {
+			printk(KERN_INFO "%s: WOL not supported.\n",
+					pci_name(VORTEX_PCI(vp)));
+
+			vp->enable_wol = 0;
+			return;
+		}
 
 		/* Change the power state to D3; RxEnable doesn't take effect. */
 		pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);