We introduced exports for register_cpu and unregister_cpu right after
2.6.10.  As far as I can tell these are not called from any code which can
be built as a module, and I can't think of a good reason why any out of
tree code would use them.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>