powerpc: Fix idle.c compile warning
This fixes a compile warning when using arch/ppc/kernel/idle.c
in a merged (ARCH=powerpc) kernel.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
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This fixes a compile warning when using arch/ppc/kernel/idle.c
in a merged (ARCH=powerpc) kernel.
Signed-off-by: NPaul Mackerras <paulus@samba.org>