Hello, On Wed, May 30, 2012 at 08:51:26AM +0100, Yong Zhang wrote: > diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h > index 7eb18c1..a91b44e 100644 > --- a/arch/arm/include/asm/cmpxchg.h > +++ b/arch/arm/include/asm/cmpxchg.h > @@ -127,6 +127,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size > > #else /* min ARCH >= ARMv6 */ > > +#define __HAVE_ARCH_CMPXCHG 1 > + > extern void __bad_cmpxchg(volatile void *ptr, int size); As long as this only requires 4-byte cmpxchg support then I think this is fine. It looks like that's currently the case, so: Acked-by: Will Deacon <will.deacon@xxxxxxx> Will -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
