linux-kernel - Re: [PATCH v2] xen-pciback: Use pci_enable_msix_exact() instead of pci_enable

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Date:	Mon, 24 Feb 2014 14:18:31 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Alexander Gordeev <agordeev@...hat.com>
Cc:	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	linux-kernel@...r.kernel.org,
	David Vrabel <david.vrabel@...rix.com>,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH v2] xen-pciback: Use pci_enable_msix_exact() instead of
 pci_enable_msix()

On Fri, Feb 21, 2014 at 05:53:40PM +0100, Alexander Gordeev wrote:
> As result of deprecation of MSI-X/MSI enablement functions
> pci_enable_msix() and pci_enable_msi_block() all drivers
> using these two interfaces need to be updated to use the
> new pci_enable_msi_range()  or pci_enable_msi_exact()
> and pci_enable_msix_range() or pci_enable_msix_exact()
> interfaces.

What is this based on? Thanks.

> 
> Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
> Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> Cc: David Vrabel <david.vrabel@...rix.com>
> Cc: linux-pci@...r.kernel.org
> ---
>  drivers/xen/xen-pciback/pciback_ops.c |    3 +--
>  1 files changed, 1 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
> index 64eb0cd..929dd46 100644
> --- a/drivers/xen/xen-pciback/pciback_ops.c
> +++ b/drivers/xen/xen-pciback/pciback_ops.c
> @@ -213,8 +213,7 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
>  		entries[i].vector = op->msix_entries[i].vector;
>  	}
>  
> -	result = pci_enable_msix(dev, entries, op->value);
> -
> +	result = pci_enable_msix_exact(dev, entries, op->value);
>  	if (result == 0) {
>  		for (i = 0; i < op->value; i++) {
>  			op->msix_entries[i].entry = entries[i].entry;
> -- 
> 1.7.7.6
> 
> -- 
> Regards,
> Alexander Gordeev
> agordeev@...hat.com
--
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