[PATCH] ARM SMP: Initialise cpu_present_map

Rather than relying on the fixup code in init/main.c, explicitly
initialise cpu_present_map.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-integrator/platsmp.c b/arch/arm/mach-integrator/platsmp.c
index 88f40a5..2ba0257 100644
--- a/arch/arm/mach-integrator/platsmp.c
+++ b/arch/arm/mach-integrator/platsmp.c
@@ -174,11 +174,13 @@
 		max_cpus = ncores;
 
 	/*
-	 * Initialise the present mask - this tells us which CPUs should
-	 * be present.
+	 * Initialise the possible/present maps.
+	 * cpu_possible_map describes the set of CPUs which may be present
+	 * cpu_present_map describes the set of CPUs populated
 	 */
 	for (i = 0; i < max_cpus; i++) {
 		cpu_set(i, cpu_possible_map);
+		cpu_set(i, cpu_present_map);
 	}
 
 	/*