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    SubjectRe: [PATCH] iommu: Remove stub functions for !CONFIG_IOMMU_API
    On Mon, Aug 29, 2011 at 08:55:40AM -0400, Ohad Ben-Cohen wrote:
    > On Mon, Aug 29, 2011 at 3:25 PM, Roedel, Joerg <Joerg.Roedel@amd.com> wrote:
    > > Right, when the system has an iommu then the iommu-api is the right
    > > choice to do that. But how to you handle this on systems without an
    > > iommu?
    >
    > On iommu-less systems this is completely moot, as the remote processor
    > can access the bus directly, and thus doesn't need any iommu
    > configuration to take place before it boots.
    >
    > So in case there is an iommu - we configure it appropriately, and if
    > there isn't, we just skip that part.

    So in this case you can skip this whole part when CONFIG_IOMMU_API is
    disabled (just don't compile the code in that requires the iommu-api).
    This saves you even more .text size, no?

    Joerg

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