Re: [patch] parisc, iommu: add missing include for prefetchw()

[David Rientjes]

On Sat, 15 Oct 2011, James Bottomley wrote:

> This isn't physically possible on the parisc platform: prefetch.h is
> included by processor.h which, amongst other things, goes into
> spinlock.h which is above this file in sba_iommu.c
> 

asm/prefetch.h is included in processor.h, not linux/prefetch.h.  Thus, 
it's undefined for CONFIG_PA20=n.

> How did you try to compile this file?
> 

make allyesconfig
make drivers/parisc/sba_iommu.o
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