Re: [PATCH 2/2] PCI: Add support for Enhanced Allocation devices

From: Bjorn Helgaas
Date: Wed Sep 02 2015 - 15:26:17 EST


On Wed, Sep 2, 2015 at 12:46 PM, Sean O. Stalley <sean.stalley@xxxxxxxxx> wrote:

> Would it be better to modify pci_claim_resource() to support EA instead of adding pci_ea_claim_resource()?
> That way, EA entries would be claimed at the same time as traditional BARs.

Yes, I think so.

Why wouldn't pci_claim_resource() work as-is for EA? I see that
pci_ea_get_parent_resource() defaults to iomem_resource or
ioport_resource if we don't find a parent, but I don't understand why
that's necessary.
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