linux-kernel - Re: [PATCH] add iommu_num

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Message-Id: <20080729185838W.fujita.tomonori@lab.ntt.co.jp>
Date:	Tue, 29 Jul 2008 18:58:08 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	joerg.roedel@....com
Cc:	sfr@...b.auug.org.au, davem@...emloft.net,
	fujita.tomonori@....ntt.co.jp, mingo@...e.hu, mingo@...hat.com,
	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	iommu@...ts.linux-foundation.org, bhavna.sarathy@....com,
	robert.richter@....com, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, jbarnes@...tuousgeek.org,
	linux-next@...r.kernel.org
Subject: Re: [PATCH] add iommu_num_pages helper function

On Tue, 29 Jul 2008 11:50:27 +0200
Joerg Roedel <joerg.roedel@....com> wrote:

> On Tue, Jul 29, 2008 at 04:45:23PM +1000, Stephen Rothwell wrote:
> > Hi Dave,
> > 
> > On Mon, 28 Jul 2008 22:24:39 -0700 (PDT) David Miller <davem@...emloft.net> wrote:
> > >
> > > sparc64: Fix build after addition of iommu_num_pages() helper.
> > 
> > I added this to the end of linux-next for today.  Hopefully we will have
> > a fix in Linus' tree tomorrow.
> 
> Yes, my fault, sorry for that breakage :-/
> I think moving that function to x86-only code is the best solution for
> now. Before moving it back to generic code we need an architecture
> independent way to find out the IOMMU page size.

Agreed, it fixes both SPARC and POWER breakages.


> FUJITA,
> 
> do you want to work on that or should I try to do this and send it to
> you for review?

I've already sent a patch that fixes the breakages in such way:

http://marc.info/?l=linux-kernel&m=121730644704448&w=2

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