x86: provide an end_local_APIC_setup function

It splits setup_local_APIC in two, providing a function corresponding
to the ending part of it. As a side effect, smp_callin looks the same
between i386 and x86_64.
Signed-off-by: NGlauber Costa <gcosta@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/apic_32.c

@@ -1064,9 +1064,13 @@ void __cpuinit setup_local_APIC(void)
 	if (!integrated)		/* 82489DX */
 		value |= APIC_LVT_LEVEL_TRIGGER;
 	apic_write_around(APIC_LVT1, value);
+}
 
-	lapic_setup_esr();
+void __cpuinit end_local_APIC_setup(void)
+{
+	unsigned long value;
 
+	lapic_setup_esr();
 	/* Disable the local apic timer */
 	value = apic_read(APIC_LVTT);
 	value |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
@@ -1256,6 +1260,7 @@ int __init APIC_init_uniprocessor(void)
 
 	setup_local_APIC();
 
+	end_local_APIC_setup();
 #ifdef CONFIG_X86_IO_APIC
 	if (smp_found_config)
 		if (!skip_ioapic_setup && nr_ioapics)

arch/x86/kernel/smpboot_32.c

@@ -161,6 +161,7 @@ static void __cpuinit smp_callin(void)
 	Dprintk("CALLIN, before setup_local_APIC().\n");
 	smp_callin_clear_local_apic();
 	setup_local_APIC();
+	end_local_APIC_setup();
 	map_cpu_to_logical_apicid();
 
 	/*
@@ -780,6 +781,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 			printk(KERN_INFO "activating minimal APIC for NMI watchdog use.\n");
 			connect_bsp_APIC();
 			setup_local_APIC();
+			end_local_APIC_setup();
 		}
 		return -1;
 	}
@@ -813,6 +815,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 
 	connect_bsp_APIC();
 	setup_local_APIC();
+	end_local_APIC_setup();
 	map_cpu_to_logical_apicid();