[PATCH 36/63] powerpc: Book 3S MMU little endian support

[Anton Blanchard]

Hi Paul,

> On Wed, Aug 07, 2013 at 02:01:53AM +1000, Anton Blanchard wrote:
> 
> > +#ifdef __BIG_ENDIAN__
> >  #define HPTE_LOCK_BIT 3
> > +#else
> > +#define HPTE_LOCK_BIT (63-3)
> > +#endif
> 
> Are you deliberately using a different bit here?  AFAICS you are using
> 0x20 in the 7th byte as the lock bit for LE, whereas we use 0x08 in
> that byte on BE.  Both are software-use bits, so it will still work,
> but is there a rationale for the change?  Or did you mean (56+3)
> rather than (63-3)?

Ouch, nice catch! I got lucky there.

Anton