linux-kernel - Re: sparc/staging compile error

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Date:	Thu, 6 Nov 2008 21:32:49 +1100
From:	Paul Mackerras <paulus@...ba.org>
To:	Greg KH <greg@...ah.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	LKML <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"William L. Irwin" <wli@...omorphy.com>, sparclinux@...r.kernel.org
Subject: Re: sparc/staging compile error

Greg KH writes:

> On Thu, Nov 06, 2008 at 04:36:26PM +1100, Stephen Rothwell wrote:
> > Hi Greg,
> > 
> > Today's tree from Linus gets the following error from a sparc
> > allmodconfig build:
> > 
> > ERROR: "___f_flush_cache_range" [drivers/staging/poch/poch.ko] undefined!
> 
> Odd, is flush_cache_range() not allowed on the sparc platform?

I'm curious, what is a driver doing calling flush_cache_range()?
What does it expect it to do precisely?

Paul.
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