Christoph Lameter writes:
> On Wed, 28 Nov 2007, Paul Mackerras wrote:
>
> > Did you try both 32-bit (CONFIG_64BIT=n) and 64-bit (CONFIG_64BIT=y)
> > configurations? The paca only exists in 64-bit kernels.
>
> I build both and there is no dependency on 32bit or 64 bit in
> include/asm-powerpc/percpu.h. Both access the paca (whatever that is).
Look at line 3 of include/asm-powerpc/percpu.h:
#ifdef __powerpc64__
As far as I can see, after applying your series of patches, I end up
with an unbalanced #ifdef in include/asm-powerpc/percpu.h. I see 3
#ifdef/#ifndef, but only two #endifs. It needs another #endif after
the #endif /* SMP */ to match the #ifdef __powerpc64__. With that
change it looks OK, since 32-bit uses asm-generic/percpu.h for both
SMP and UP.
Paul.
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