>We want the better optimizations that "new C" enables more than we
>want the semantics of "traditional C". Thus, anything that depends on
>"traditional C" should be fixed.

Huh? Thats a damn-fool thing to say. Doing, say
	find /sys -name '*.[ch]' -print |xargs grep mtod

might be instructive.  Changing all those usages to copy to an
appropriately-typed intermediate struct? Just Say No.