Re: linux-next: build failure after merge of the iommu tree

From: Magnus Damm
Date: Sun Nov 01 2015 - 19:15:46 EST

Hi Joerg, everyone,

On Mon, Nov 2, 2015 at 12:14 AM, Joerg Roedel <joro@xxxxxxxxxx> wrote:
> Hi Stephen,
> On Sun, Nov 01, 2015 at 10:42:52PM +1100, Stephen Rothwell wrote:
>> After merging the iommu tree, today's linux-next build (x86_64
>> allmodconfig) failed like this:
>> drivers/iommu/ipmmu-vmsa.c:24:27: fatal error: asm/dma-iommu.h: No such file or directory
>> Caused by commit
>> bad78b13e305 ("iommu/ipmmu-vmsa: Drop LPAE Kconfig dependency")
>> Only arm has the include file ...
>> I have used the iommu tree from next-20151022 for today.
> Thanks, I reverted the broken commit and will push out an updated tree
> soon.

Thanks for your help and my apologies for the breakage. I did not
expect this patch to enable build on non-ARM platforms but I can now
understand that the LPAE Kconfig bits may have been the last bit
stopping other architectures to build this driver.

I'm currently poking around with this driver on 32/64-bit ARM and
getting rid of those includes from asm/ is for sure on my TODO list.

/ magnus
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