linux-kernel - Re: [PATCH] Revert "Merge branch 'x86/iommu' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into for-linus"

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Message-Id: <20080801085106E.fujita.tomonori@lab.ntt.co.jp>
Date:	Fri, 1 Aug 2008 08:51:23 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	sfr@...b.auug.org.au
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, jbarnes@...tuousgeek.org,
	joerg.roedel@....com, mingo@...e.hu, linuxppc-dev@...abs.org,
	davem@...emloft.net, sparclinux@...r.kernel.org
Subject: Re: [PATCH] Revert "Merge branch 'x86/iommu' of
 git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into
 for-linus"

On Fri, 1 Aug 2008 09:43:23 +1000
Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> This reverts commit 29111f579f4f3f2a07385f931854ab0527ae7ea5.
> 
> This undoes the hasty addition of a global version of iommu_num_pages()
> that broke both the powerpc and sparc builds.  This function can be
> revisited later.
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  arch/x86/kernel/amd_iommu.c   |   13 ++++++++-----
>  arch/x86/kernel/pci-gart_64.c |   11 +++++++----
>  include/linux/iommu-helper.h  |    1 -
>  lib/iommu-helper.c            |    8 --------
>  4 files changed, 15 insertions(+), 18 deletions(-)
> 
> This patch comes from
> git revert -m 1 29111f579f4f3f2a07385f931854ab0527ae7ea5
> 
> I have test built powerpc ppc64_defconfig and sparc64 defconfig.  The only
> references to iommu_num_pages() after this is applied are in the powerpc
> and sparc code.
> 
> Linus, please apply.  This is impacting on both powerpc and sparc
> development and even the author of the patches said that those patches
> were not urgent.

Ingo has a patch to fix this problem in the x86 tree:

http://marc.info/?l=linux-kernel&m=121754062325903&w=2
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