x86: merge cpu_exit_clear

this is the last remaining function in smpboot_32.c
Since it is i386 specific, move it around an ifdef to
smpboot.c

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 45119d39f31e..6a7fb1300073 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1207,6 +1207,24 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
+
+#  ifdef CONFIG_X86_32
+void cpu_exit_clear(void)
+{
+        int cpu = raw_smp_processor_id();
+
+        idle_task_exit();
+
+        cpu_uninit();
+        irq_ctx_exit(cpu);
+
+        cpu_clear(cpu, cpu_callout_map);
+        cpu_clear(cpu, cpu_callin_map);
+
+        unmap_cpu_to_logical_apicid(cpu);
+}
+#  endif /* CONFIG_X86_32 */
+
 void remove_siblinginfo(int cpu)
 {
         int sibling;