[PATCH v3 11/13] of: add property iteration helpers

[jamie@jamieiles.com (Jamie Iles)]

On Fri, Aug 26, 2011 at 08:59:44AM -0700, Stephen Warren wrote:
> Jamie Iles wrote at Friday, August 26, 2011 3:27 AM:
> > For the !CONFIG_OF case, I *think* that
> > of_iter_u32_prop and of_iter_string_prop can be empty struct's, but I
> > wouldn't want to bet money on that!
> 
> Empty structs themselves certainly did compile OK, but the code that
> uses these macros references iter.value directly, and isn't under #ifdef
> CONFIG_OF, so that field has to exist.
> 
> I suppose an alternative would be to add an accessor function:
> 
> struct of_iter_string_prop iter;
> for_each_string_property_value(iter, np, "pins")
>         printk("Got value %s\n", of_iter_string_value(iter));
> 
> which would return NULL/"" when !CONFIG_OF, and hence allow iter.value
> to be removed too. Do you think that's a good approach? It'd be easy to
> implement.

I think I prefer what you have now rather than a separate accessor, but 
I'm happy either way!

Jamie