powerpc: Use set_cpus_allowed_ptr

Use set_cpus_allowed_ptr rather than set_cpus_allowed.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E1,E2;
@@

- set_cpus_allowed(E1, cpumask_of_cpu(E2))
+ set_cpus_allowed_ptr(E1, cpumask_of(E2))

@@
expression E;
identifier I;
@@

- set_cpus_allowed(E, I)
+ set_cpus_allowed_ptr(E, &I)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/kernel/smp.c

@@ -561,12 +561,12 @@ void __init smp_cpus_done(unsigned int max_cpus)
 	 * se we pin us down to CPU 0 for a short while
 	 */
 	old_mask = current->cpus_allowed;
-	set_cpus_allowed(current, cpumask_of_cpu(boot_cpuid));
+	set_cpus_allowed_ptr(current, cpumask_of(boot_cpuid));
 
 	if (smp_ops && smp_ops->setup_cpu)
 		smp_ops->setup_cpu(boot_cpuid);
 
-	set_cpus_allowed(current, old_mask);
+	set_cpus_allowed_ptr(current, &old_mask);
 
 	snapshot_timebases();