If you want to change all of the bcopy/bzero instances to mem*
   equivalents, that's one thing, but don't add new functions to the
   kernel because somebody screwed up some new code that they wrote.

It's a *far* stretch to say that someone `screwed up' in this case,
unless you're referring to the fact that macros in the *kernel* include
files use functions that aren't present in the kernel.