Somehow we ended up with an #ifdef CONFIG_PPC64 around the export of cur_cpu_spec, but raid6 as a module needs it on ppc32 as well as ppc64. Signed-off-by: Paul Mackerras <paulus@samba.org>
Also simplify arch/ppc64/kernel/Makefile Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>