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

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Date:	Sat, 15 Oct 2011 19:56:55 -0500
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [patch] parisc, iommu: add missing include for prefetchw()

On Sat, 2011-10-15 at 17:41 -0700, David Rientjes wrote:
> 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.

sba_iommu isn't possible with CONFIG_PA20=n; it's a ZX1 or above
feature.

> > How did you try to compile this file?
> > 
> 
> make allyesconfig
> make drivers/parisc/sba_iommu.o


OK, so just take one of the standard configs ... I don't think anyone's
tried much randconfig testing over parisc, most of the configuration
lore is handed down from the mountain on stone tablets.

James


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