Re: [PATCH] arm: Fix linux-next compile error in arch/arm/common/gic.c

Joerg Roedel
2012-01-03T09:31:28Z

On Tue, Jan 03, 2012 at 08:44:01AM +0800, Yang Bai wrote:
> On Tue, Jan 3, 2012 at 12:33 AM, Joerg Roedel <joerg.roedel@amd.com> wrote:

> >                for_each_possible_cpu(cpu) {
> > -                       unsigned long offset = percpu_offset * cpu_logical_map(cpu);
> > +                       unsigned long offset = percpu_offset;
> > +#ifdef CONFIG_SMP
> > +                       offset *= cpu_logical_map(cpu);
> > +#endif
> >                        *per_cpu_ptr(gic->dist_base.percpu_base, cpu) = dist_base + offset;
> >                        *per_cpu_ptr(gic->cpu_base.percpu_base, cpu) = cpu_base + offset;
> >                }
> > --
> > 1.7.5.4
> >
> >
>
> Is this the right way to fix it? Or shall we do like this:
>
> #ifdef CONFIG_SMP
> ...
> #else
> #define cpu_logical_map() 1
> #endif
>
> and leave the gic.c code unchanged.

Well, I don't care ;) But everywhere else in this file the use of
cpu_logical_map() is #ifdef'ed with CONFIG_SMP. So for consistency my
proposed variant is better, no?

Joerg