Re: [PATCH v4] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 builddependencies for XEN

[Stefano Stabellini]

On Tue, 21 Jan 2014, Will Deacon wrote:
> On Tue, Jan 21, 2014 at 01:44:24PM +0000, Stefano Stabellini wrote:
> > Remove !GENERIC_ATOMIC64 build dependency:
> > - introduce xen_atomic64_xchg
> > - use it to implement xchg_xen_ulong
> > 
> > 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: catalin.marinas@xxxxxxx
> > CC: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > CC: linux-kernel@xxxxxxxxxxxxxxx
> > CC: xen-devel@xxxxxxxxxxxxxxxxxxxx
> 
>   Reviewed-by: Will Deacon <will.deacon@xxxxxxx>
> 
> Cheers Stefano,

Thanks!!
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