linux-kernel - Re: [Xen-devel] [RFC PATCH 1/5] xen-pciback: Cleanup up pcistub_put_pci

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Date:	Mon, 16 Dec 2013 09:19:00 +0000
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>
Cc:	<gordan@...ich.net>, <xen-devel@...ts.xenproject.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [Xen-devel] [RFC PATCH 1/5] xen-pciback: Cleanup up
 pcistub_put_pci_dev

>>> On 13.12.13 at 17:09, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> wrote:
> We are using both psdev->dev and dev and both are the same.
> To keep it straight lets just use one - dev.

This should properly describe the patch, which otherwise at the
first glance looks wrong: You're also replacing found_psdev->dev.

> This will also make it easier in the patch:
> "xen/pciback: When reconfiguring an PCIe device, FLR it"
> and "xen/pciback: PCI reset slot or bus" to use it.
> 
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>

Apart from the above,
Reviewed-by: Jan Beulich <jbeulich@...e.com>

> ---
>  drivers/xen/xen-pciback/pci_stub.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/xen/xen-pciback/pci_stub.c 
> b/drivers/xen/xen-pciback/pci_stub.c
> index 62fcd48..5300a21 100644
> --- a/drivers/xen/xen-pciback/pci_stub.c
> +++ b/drivers/xen/xen-pciback/pci_stub.c
> @@ -272,16 +272,16 @@ void pcistub_put_pci_dev(struct pci_dev *dev)
>  	 * and want to inhibit the user from fiddling with 'reset'
>  	 */
>  	pci_reset_function(dev);
> -	pci_restore_state(psdev->dev);
> +	pci_restore_state(dev);
>  
>  	/* This disables the device. */
> -	xen_pcibk_reset_device(found_psdev->dev);
> +	xen_pcibk_reset_device(dev);
>  
>  	/* And cleanup up our emulated fields. */
> -	xen_pcibk_config_free_dyn_fields(found_psdev->dev);
> -	xen_pcibk_config_reset_dev(found_psdev->dev);
> +	xen_pcibk_config_free_dyn_fields(dev);
> +	xen_pcibk_config_reset_dev(dev);
>  
> -	xen_unregister_device_domain_owner(found_psdev->dev);
> +	xen_unregister_device_domain_owner(dev);
>  
>  	spin_lock_irqsave(&found_psdev->lock, flags);
>  	found_psdev->pdev = NULL;
> -- 
> 1.8.3.1
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@...ts.xen.org 
> http://lists.xen.org/xen-devel 



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