[RFC] ARM: Make CPU_DCACHE_DISABLE depend on !SMP

[Russell King - ARM Linux]

On Thu, Jan 08, 2015 at 11:10:47PM +0100, Arnd Bergmann wrote:
> My guess is that any implementation that has working LDREX/STREX
> on uncached memory does not support SMP, because these instructions
> tend to be implemented through the cache coherency logic on SMP
> systems but could be implemented more easily without a dcache
> on uniprocessor cores.

Yes, I negated Tony's patches... Tony was fixing pstore to use
writecombine memory.

So this change is fine.

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