[PATCH] of: Provide default of_node_to_nid() when CONFIG_NUMA is not set

Grant Likely grant.likely at secretlab.ca
Mon Jul 26 06:37:38 EST 2010

On Sat, Jul 24, 2010 at 9:07 PM, Stephen Rothwell <sfr at canb.auug.org.au> wrote:
> Hi Grant,
> On Sat, 24 Jul 2010 09:43:31 -0600 Grant Likely <grant.likely at secretlab.ca> wrote:
>> of_node_to_nid() is only relevant for NUMA.  Don't force architectures to
>> implement it if CONFIG_NUMA is not set.
> Why not just do:
> #ifndef of_node_to_nid
> static inline int of_node_to_nid(struct device_node *device) { return 0; }
> #define of_node_to_nid  of_node_to_nid
> #endif
> in include/linux/of.h
> and then add:
> #define of_node_to_nid  of_node_to_nid
> Where it is declared/defined for each arch ...
> (it would be nice if all the archs were consistent in where it was
> declared).

Two reasons; I had started doing that in topology.h, but it caused a
bunch of collateral damage with files missing the include, so I punted
and took the easy way out.  Also, I didn't know if that was an
acceptable or safe pattern for override symbols.

I'll spin it again with this pattern and see what it looks.


> --
> Cheers,
> Stephen Rothwell                    sfr at canb.auug.org.au
> http://www.canb.auug.org.au/~sfr/

Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

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