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SubjectRe: [PATCH V5 02/10] perf/amd/iommu: Consolidate and move perf_event_amd_iommu header
On Mon, Mar 14, 2016 at 12:26:00PM +0700, Suravee Suthikulpanit wrote:
> Hi,
>
> On 03/12/2016 08:22 PM, Peter Zijlstra wrote:
> >On Tue, Feb 23, 2016 at 08:12:36AM -0600, Suravee Suthikulpanit wrote:
> >>From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> >>
> >>First, this patch move arch/x86/events/amd/iommu.h to
> >>arch/x86/include/asm/perf/amd/iommu.h so that we easily include
> >>it in both perf-amd-iommu and amd-iommu drivers.
> >>
> >>Then, we consolidate declaration of AMD IOMMU performance counter
> >>APIs into one file.
> >
> >These seem two independent thingies; should this therefore not be 2
> >patches?
> >
> >>Reviewed-by: Joerg Roedel <jroedel@suse.de>
> >>Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
> >>---
> >> arch/x86/events/amd/iommu.c | 2 +-
> >> arch/x86/events/amd/iommu.h | 40 ---------------------------------
> >> arch/x86/include/asm/perf/amd/iommu.h | 42 +++++++++++++++++++++++++++++++++++
> >
> >That seems somewhat excessive. Not only do you create
> >arch/x86/include/asm/perf/ you then put another directory on top of
> >that.
> >
>
> The original header files (arch/x86/events/amd/iommu.h and
> drivers/iommu/amd_iommu_proto.h) has duplicate function declarations. So,
> with the new header file being in the arch/x86/include/asm/perf/amd/iommu.h,
> we can just have one function declaration.
>
> So, you just want to separate the file moving part and the part that removes
> of the duplication?

I'm fine with a new header, it just seems putting it in a two deep
direcotry hierarchy of its own that seems excessive.

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