Re: [cpuops cmpxchg double V3 3/5] Generic support forthis_cpu_cmpxchg_double

[Christoph Lameter]

On Fri, 25 Feb 2011, Steven Rostedt wrote:

> > +	VM_BUG_ON((unsigned long)(&pcp1) % (2 * sizeof(pcp1)));		\
> > +	VM_BUG_ON((unsigned long)(&pcp2) != (unsigned long)(&pcp1) + sizeof(pcp1));\
> > +	VM_BUG_ON(sizeof(pcp1) != sizeof(pcp2));			\
>
> Since this is a macro, and it looks like all these are constants (sizeof
> and addresses), couldn't you just do a BUILD_BUG_ON() instead?

The addresses are not constant.
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