Re: [RFC 1/3 v3] mm: iommu: An API to unify IOMMU, CPU and devicememory management

[Russell King - ARM Linux]

On Mon, Jul 19, 2010 at 10:55:15AM -0700, Michael Bohan wrote:
>
> On 7/16/2010 12:58 AM, Russell King - ARM Linux wrote:
>
>> As the patch has been out for RFC since early April on the linux-arm-kernel
>> mailing list (Subject: [RFC] Prohibit ioremap() on kernel managed RAM),
>> and no comments have come back from Qualcomm folk.
>
> Would it be unreasonable to allow a map request to succeed if the  
> requested attributes matched that of the preexisting mapping?

What would be the point of creating such a mapping?
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