Re: [PATCHv3 01/19] [HACK] of: dev_node has struct device pointer

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On Wed, 30 Oct 2013 15:58:58 -0600, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote:
> On 10/25/2013 03:11 AM, Thierry Reding wrote:
> ...
> > So my proposed solution for the IOMMU case is to treat it the same
> > as any other resources. Perhaps resource isn't the right word, but
> > at the core the issue is the same. A device requires the services
> > of an IOMMU so that it can be put into the correct address space.
> > If the IOMMU is not available yet it cannot do that, so we simply
> > return -EPROBE_DEFER and cause the probe to be retried later.
> 
> Personally, I view deferred probe as being used when one device
> requires either a resource /or/ a service provided by another, not
> /just/ when there's a resource dependency. Hence, I think it fits
> perfectly here.

How are those two things different? :-)

g.
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