Re: [PATCH v3] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 builddependencies for XEN

[Will Deacon]

Hi Stefano,

On Wed, Jan 08, 2014 at 06:00:23PM +0000, Stefano Stabellini wrote:
> Remove !GENERIC_ATOMIC64 build dependency:
> - rename atomic64_xchg to armv7_atomic64_xchg and define it even ifdef
>   GENERIC_ATOMIC64;
> - call armv7_atomic64_xchg directly from xen/events.h.
> 
> Remove !CPU_V6 build dependency:
> - introduce __cmpxchg8 and __cmpxchg16, compiled even ifdef
>   CONFIG_CPU_V6;
> - implement sync_cmpxchg using __cmpxchg8 and __cmpxchg16.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> CC: arnd@xxxxxxxx
> CC: linux@xxxxxxxxxxxxxxxx
> CC: will.deacon@xxxxxxx
> CC: gang.chen@xxxxxxxxxxx
> CC: catalin.marinas@xxxxxxx
> CC: jaccon.bastiaansen@xxxxxxxxx
> CC: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> CC: linux-kernel@xxxxxxxxxxxxxxx
> 

I'm confused here. It looks like you want to call armv7 code in a v6 kernel.
What am I missing?

Will
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