Jon Mason <[email protected]> :
[...]
> DMA_*BIT_MASK is intended to be used in the DMA_API's checking of
> DMA controller's addressable memory, where as this is masking off the
> lower 48bits of a descriptor for its DMA address.
Imho it's the specific reason why the DMA_*BIT_MASK applies here: the
code is already in dma-"tainted" land.
> I think a better solution (which I should've done when I pushed the
> original patch) would be a driver specific #define.
$ find drivers -type f | xargs grep -i [^f]ffffffffffff[^f] | wc -l
12
No disagreement: it does not have a huge potential for code duplication.
--
Ueimor
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