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SubjectRe: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
Date
Lennert Buytenhek <buytenh@wantstofly.org> wrote:

> > Pre-v6 ARM doesn't support SMP according to ARM's atomic.h,
>
> That's not quite true, there exist ARMv5 processors that in theory
> can support SMP.

I meant that the Linux ARM arch doesn't support it:

#else /* ARM_ARCH_6 */

#include <asm/system.h>

#ifdef CONFIG_SMP
#error SMP not supported on pre-ARMv6 CPUs
#endif

David
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