Re: [PATCH] [POWERPC] Improve (in|out)_beXX() asm code

[Alan Cox]

> It looks like we rely on -fno-strict-aliasing to prevent reordering 
> ordinary memory accesses (such as to DMA descriptors) past the I/O 

DMA descriptors in main memory are dependant on cache behaviour anyway
and the dma_* operators should be the ones enforcing the needed behaviour.

Alan
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