linux-kernel - Re: [PATCH v2 RESEND 1/4] ioat: Use pci_enable_msix_exact() instead of pci_enable

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Date:	Thu, 6 Mar 2014 13:09:39 -0800
From:	Dan Williams <dan.j.williams@...el.com>
To:	Alexander Gordeev <agordeev@...hat.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vinod Koul <vinod.koul@...el.com>,
	"dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH v2 RESEND 1/4] ioat: Use pci_enable_msix_exact() instead
 of pci_enable_msix()

On Thu, Mar 6, 2014 at 12:11 PM, Alexander Gordeev <agordeev@...hat.com> 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.
>
> Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
> Cc: Dan Williams <dan.j.williams@...el.com>
> Cc: Vinod Koul <vinod.koul@...el.com>
> Cc: dmaengine@...r.kernel.org
> Cc: linux-pci@...r.kernel.org
> ---

Can you point me to the background for this change.  From the
changelog I have no idea what this patch does or why I need to apply
it.
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