* Ingo Molnar <[email protected]> wrote:
> but ... i think gcc ought to be able to figure out that the parameter
> is totally unused on !LOCKDEP - all functions involved are static, and
> we are using -funit-at-a-time already. That should make the parameter
> passing totally zero-cost.
hm, gcc (as of 4.1.1) doesnt seem to be able to figure that out,
probably due to the 'nesting + 1' changing the variable.
Anyway, Arjan's nesting-type idea should solve the problem - in that
case 'nesting + 1' becomes an identity mapping of a zero-sized variable,
which will generate zero code.
Ingo
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