* Ingo Molnar <mingo@elte.hu> wrote:

quoted text
> could you rename it to trace_type() - that way the initialization could 
> be written in a more compact way as:
> 
> > +	struct trace_mmiotrace_map *field = trace_type(field, entry);

ah, it cannot be done that way, as 'field' has to be known to the 
compiler.

so your patch is fine as-is, the extra line is an acceptable cost, as we 
get:

- the type filter (trying to cast an object outside of the narrow list 
  of trace entry types will cause a failed build - i.e. most of the 
  practical dangers of C type casting are avoided!)

- the runtime entry type checker

	Ingo
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