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    SubjectRe: [PATCH] dma-mapping-broken.h: flesh-out DMA API stubs
    On Fri, Feb 23, 2007 at 08:57:41AM -0500, Kyle McMartin wrote:
    > On Fri, Feb 23, 2007 at 07:13:32AM +0100, Heiko Carstens wrote:
    > > How about this for telling that an architecture doesn't support DMA?
    > > At least we could get rid of dma-mapping-broken.h and don't need to
    > > compile some afterwards dead code.
    > >
    > > Signed-off-by: Heiko Carstens <>
    > This like a lot better of an idea than stubbing out things which should never
    > be built in the first place...

    My only thought was that the intent must have been to allow compilation of a driver
    that checks for DMA at runtime (via dma_supported). But, I guess dma_supported is intended
    as a platform-level check?

    If the DMA availability is at the arch level then such a driver could
    use (albeit ugly) compile flags to cover that situation...?

    Well, either way is fine with me.

    John W. Linville
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