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SubjectRe: [PATCH v4] arm: remove !CPU_V6 and !GENERIC_ATOMIC64 build dependencies for XEN
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@eu.citrix.com>
> CC: arnd@arndb.de
> CC: linux@arm.linux.org.uk
> CC: will.deacon@arm.com
> CC: catalin.marinas@arm.com
> CC: linux-arm-kernel@lists.infradead.org
> CC: linux-kernel@vger.kernel.org
> CC: xen-devel@lists.xenproject.org

Reviewed-by: Will Deacon <will.deacon@arm.com>

Cheers Stefano,

Will


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