gas warning fixes 8

[Andrew Cagney]

>> Did you know that GCC can selectively enable unused warnings and hence 
>> not enable the useless --Wunused-param option?  No need for all the 
>> attribute unused sillyness.
> 
> 
> How would gcc tell the difference between an intentionally unused
> parameter, and an accidentally unused parameter?

It doesn't.  But then, GCC doesn't report an intentionally unused 
parameter that is being used either.

Andrew