RE: pci_unmap_single() and CONFIG_NOT_COHERENT_CACHE

   Allen> I noticed in pci.h that pci_unmap_single() is a null
   Allen> function. (essentially does nothing) Shouldn't is call
   Allen> consistent_sync() so that flush_dcache_range() is called?

No, the cache invalidate or flush has to happen when pci_map_single()
is used.  There's nothing to do after the DMA is done (which is when
pci_unmap_single() gets called).

Thanks, shortly after pressing the send button I realized that this was a
dumb question.


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