netdev - Re: [PATCH 5/5] PCI: remove pci_enable

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Date:   Tue, 28 Mar 2017 08:41:48 +0200
From:   Christoph Hellwig <hch@....de>
To:     David Daney <ddaney.cavm@...il.com>
Cc:     Christoph Hellwig <hch@....de>, bhelgaas@...gle.com,
        davem@...emloft.net, netanel@...apurnalabs.com, jcliburn@...il.com,
        chris.snook@...il.com, sgoutham@...ium.com, rric@...nel.org,
        netdev@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 5/5] PCI: remove pci_enable_msix

On Mon, Mar 27, 2017 at 10:30:46AM -0700, David Daney wrote:
>> Use pci_enable_msix_{exact,range} for now, as I told you before.
>>
>
> That still results in twice as many MSI-X being provisioned than are needed.

How so?  Except for the return value, a pci_enable_msix_exact call with the
same arguments as your previous pci_enable_msix will work exactly the
same.