[PATCH v4] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 build dependencies 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 at eu.citrix.com>
> > CC: arnd at arndb.de
> > CC: linux at arm.linux.org.uk
> > CC: will.deacon at arm.com
> > CC: catalin.marinas at arm.com
> > CC: linux-arm-kernel at lists.infradead.org
> > CC: linux-kernel at vger.kernel.org
> > CC: xen-devel at lists.xenproject.org
> 
>   Reviewed-by: Will Deacon <will.deacon at arm.com>
> 
> Cheers Stefano,

Thanks!!