linux-kernel - Re: [PATCH] libata: CONFIG

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Date:	Mon, 04 Jun 2007 11:38:15 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Olof Johansson <olof@...om.net>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-ide@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] libata: CONFIG_PM=n compile fix

Hi.

On Sun, 2007-06-03 at 17:58 -0500, Olof Johansson wrote:
> CONFIG_PM=n compile fix.
> 
> Signed-off-by: Olof Johansson <olof@...om.net>
> 
> ---
> 
> Hi,
> 
> On Sat, May 26, 2007 at 11:09:54PM -0400, Jeff Garzik wrote:
> 
> > This is checked into the 'mv-ahci-pata' branch of
> > git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
> 
> Didn't build for me without this change, since I had CONFIG_PM=n.
> 
> 
> diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
> index 21df81e..07d5a95 100644
> --- a/drivers/ata/ahci.c
> +++ b/drivers/ata/ahci.c
> @@ -1818,6 +1836,14 @@ static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
>  	}
>  }
>  
> +static int ahci_port_resume(struct ata_port *ap)
> +{
> +	ahci_power_up(ap);
> +	ahci_start_port(ap);
> +
> +	return 0;
> +}
> +
>  #ifdef CONFIG_PM
>  static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
>  {
> @@ -1835,14 +1861,6 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
>  	return rc;
>  }
>  
> -static int ahci_port_resume(struct ata_port *ap)
> -{
> -	ahci_power_up(ap);
> -	ahci_start_port(ap);
> -
> -	return 0;
> -}
> -
>  static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
>  {
>  	struct ata_host *host = dev_get_drvdata(&pdev->dev);

At first glance, this looked wrong to me, but I see Jeff is using
ahci_port_resume from ahci_port_start, so it is right.

Regards,

Nigel

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