Re: [RFC] pciehp: Add archdata setting

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On Wed, Apr 11, 2012 at 11:00 PM, Hiroo Matsumoto
<matsumoto.hiroo@xxxxxxxxxxxxxx> wrote:
> Hi, Kaneshige
>
>
> You are right!
> Setting dma_ops in pcibios_enable_device is a nice way.
> In PCI driver, pci_enable_device_xxx that calls pcibios_enable_device is
> called before checking archdata.dma_ops.
>
> I added code of checking and setting dma_ops to pcibios_enable_device in
> arch/powerpc/kernel/pci-common.c.
> It works good.

When I researched this, I thought the best route was to use the
bus_register_notifier() path, as amd_iommu_init_notifier() does.

We're filling in a struct device field, not a PCI field, and
bus_register_notifier() seems like a more generic path than relying on
pcibios_enable_device().

Bjorn
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