linux-kernel - Re: [PATCH] add iommu_num

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Date:	Tue, 29 Jul 2008 14:42:45 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	davem@...emloft.net
Cc:	fujita.tomonori@....ntt.co.jp, sfr@...b.auug.org.au, mingo@...e.hu,
	joerg.roedel@....com, 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 Mon, 28 Jul 2008 22:26:18 -0700 (PDT)
David Miller <davem@...emloft.net> wrote:

> From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> Date: Tue, 29 Jul 2008 13:38:53 +0900
> 
> > Agreed... As I said before, this is not urgent at all so we didn't
> > need to rush.
> 
> Please, if you are going to add such interface, add
> "const unsigned long io_page_size" argument so that
> powerpc and sparc can use it too.

I didn't add this function:

http://marc.info/?l=linux-kernel&m=121699080831750&w=2

I pointed out that it doesn't work for some architectures:

http://marc.info/?l=linux-kernel&m=121699304403202&w=2


But sorry about not noticing that it breaks SPARC and POWER.
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