Uninlining do_trap() saves 544 bytes in traps.o.  get_cr2() seems to be
unused, remove it.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>