powerpc/pmac/smp: Remove no-longer needed preempt workaround

The generic code properly re-initializes the preempt count in the
idle thread now

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index ce5b4f5..a830c5e 100644 (file)
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -950,13 +950,6 @@ static void pmac_cpu_die(void)
        generic_set_cpu_dead(cpu);
        smp_wmb();
 
-       /*
-        * during the path that leads here preemption is disabled,
-        * reenable it now so that when coming up preempt count is
-        * zero correctly
-        */
-       preempt_enable();
-
        /*
         * Re-enable interrupts. The NAP code needs to enable them
         * anyways, do it now so we deal with the case where one already