spapr: do not use CPU_FOREACH_REVERSE
This paves the way for implementing the CPU list with an RCU list, which cannot be traversed in reverse order. Note that this is the only caller of CPU_FOREACH_REVERSE. Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NEmilio G. Cota <cota@braap.org> Message-Id: <20180819091335.22863-11-cota@braap.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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