Re: *dma_sync_single API change to support non-coherent cpus

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   From: Russell King <rmk@arm.linux.org.uk>
   Date: Mon, 3 Mar 2003 19:58:25 +0000
   
   DaveM, as the author of the original PCI DMA API, any comments on this
   (probably ill-thoughtout) idea?

Maybe a better idea is to kill map_single() altogether, and use
scatterlists everywhere.

Long term this is the kind of consolidation that ought to
happen anyways.

And then the implementation can stick whatever it wants in there.
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