Re: [PATCH 14/16] amd_iommu: clean up unnecessary MSI/MSI-Xcapability find

From: Joerg Roedel
Date: Wed Aug 14 2013 - 06:20:23 EST


On Thu, Aug 08, 2013 at 09:12:36PM +0800, Yijing Wang wrote:
> PCI core will initialize device MSI/MSI-X capability in
> pci_msi_init_pci_dev(). So device driver should use
> pci_dev->msi_cap/msix_cap to determine whether the device
> support MSI/MSI-X instead of using
> pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
> Access to PCIe device config space again will consume more time.
>
> Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
> Cc: Joerg Roedel <joro@xxxxxxxxxx>
> Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx

Applied to x86/amd, thanks.


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