netdev - Re: [PATCH] igb/e1000e/e1000/e100: make wol usable

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Date:	Wed, 22 Jul 2009 13:00:50 -0700 (Pacific Daylight Time)
From:	"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>
To:	Andy Gospodarek <andy@...yhouse.net>
cc:	Alexander Duyck <alexander.duyck@...il.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@...el.com>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: [PATCH] igb/e1000e/e1000/e100: make wol usable

> [PATCH] ixgbe: remove unnecessary call to device_init_wakeup
> 
> Calls to device_init_wakeup should not be necessary in drivers that use
> device_set_wakeup_enable since pci_pm_init will set the can_wakeup flag
> for the device when initialized.
> 
> I can't test this since I don't have any of the 82599 KX4 interfaces
> (the only ones capable of WOL), but I did instrument ixgbe_probe and
> know that can_wakeup=1 when device_init_wakeup is removed.
> 
> Signed-off-by: Andy Gospodarek <andy@...yhouse.net>
> 
> ---
> 
>  ixgbe_main.c |    1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
> index 79f60e8..2f15abf 100644
> --- a/drivers/net/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ixgbe/ixgbe_main.c
> @@ -5640,7 +5640,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
>  		adapter->wol = 0;
>  		break;
>  	}
> -	device_init_wakeup(&adapter->pdev->dev, true);
>  	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
>  
>  	/* pick up the PCI bus settings for reporting later */

I need to rebuild one of my boxes in the lab that I do WoL testing on for 
ixgbe devices.  That shouldn't take me long, and I'll test this.  If it 
works as expected, I'll send my ack.

Cheers,
-PJ Waskiewicz
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