netdev - Re: [patch (for 2.6.25?) 1/3] e100: do suspend/shutdown like e1000

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Date:	Tue, 04 Mar 2008 15:03:38 -0800
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	akpm@...ux-foundation.org
CC:	jeff@...zik.org, netdev@...r.kernel.org, arvidjaar@...l.ru
Subject: Re: [patch (for 2.6.25?) 1/3] e100: do suspend/shutdown like e1000

akpm@...ux-foundation.org wrote:
> From: "Kok, Auke" <auke-jan.h.kok@...el.com>
> 
> This fixes a "trying to free already free IRQ" message and simplifies the
> shutdown/suspend code by re-using already existing code when going to
> suspend.  The code is now symmetric with e100_resume.
> 
> Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>
> Tested-by: Andrey Borzenkov <arvidjaar@...l.ru>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>


This should already be in jeff's inbox ...

Auke


> ---
> 
>  drivers/net/e100.c |   29 +++--------------------------
>  1 file changed, 3 insertions(+), 26 deletions(-)
> 
> diff -puN drivers/net/e100.c~e100-do-suspend-shutdown-like-e1000 drivers/net/e100.c
> --- a/drivers/net/e100.c~e100-do-suspend-shutdown-like-e1000
> +++ a/drivers/net/e100.c
> @@ -2782,16 +2782,13 @@ static void __devexit e100_remove(struct
>  	}
>  }
>  
> -#ifdef CONFIG_PM
>  static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
>  {
>  	struct net_device *netdev = pci_get_drvdata(pdev);
>  	struct nic *nic = netdev_priv(netdev);
>  
>  	if (netif_running(netdev))
> -		napi_disable(&nic->napi);
> -	del_timer_sync(&nic->watchdog);
> -	netif_carrier_off(nic->netdev);
> +		e100_down(nic);
>  	netif_device_detach(netdev);
>  
>  	pci_save_state(pdev);
> @@ -2804,14 +2801,13 @@ static int e100_suspend(struct pci_dev *
>  		pci_enable_wake(pdev, PCI_D3cold, 0);
>  	}
>  
> -	free_irq(pdev->irq, netdev);
> -
>  	pci_disable_device(pdev);
>  	pci_set_power_state(pdev, PCI_D3hot);
>  
>  	return 0;
>  }
>  
> +#ifdef CONFIG_PM
>  static int e100_resume(struct pci_dev *pdev)
>  {
>  	struct net_device *netdev = pci_get_drvdata(pdev);
> @@ -2832,26 +2828,7 @@ static int e100_resume(struct pci_dev *p
>  
>  static void e100_shutdown(struct pci_dev *pdev)
>  {
> -	struct net_device *netdev = pci_get_drvdata(pdev);
> -	struct nic *nic = netdev_priv(netdev);
> -
> -	if (netif_running(netdev))
> -		napi_disable(&nic->napi);
> -	del_timer_sync(&nic->watchdog);
> -	netif_carrier_off(nic->netdev);
> -
> -	if ((nic->flags & wol_magic) | e100_asf(nic)) {
> -		pci_enable_wake(pdev, PCI_D3hot, 1);
> -		pci_enable_wake(pdev, PCI_D3cold, 1);
> -	} else {
> -		pci_enable_wake(pdev, PCI_D3hot, 0);
> -		pci_enable_wake(pdev, PCI_D3cold, 0);
> -	}
> -
> -	free_irq(pdev->irq, netdev);
> -
> -	pci_disable_device(pdev);
> -	pci_set_power_state(pdev, PCI_D3hot);
> +	e100_suspend(pdev, PMSG_SUSPEND);
>  }
>  
>  /* ------------------ PCI Error Recovery infrastructure  -------------- */
> _

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