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SubjectRe: [PATCH] Revert "Merge branch 'x86/iommu' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into for-linus"
From
On Fri, 1 Aug 2008 09:43:23 +1000
Stephen Rothwell <sfr@canb.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@canb.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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