x86, apic: clean up ->apicid_to_cpu_present()

- separate the namespace

 - remove macros

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
index 1eaf18c..61396523 100644
--- a/arch/x86/mach-generic/bigsmp.c
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -83,7 +83,7 @@
 	.apicid_to_node			= bigsmp_apicid_to_node,
 	.cpu_to_logical_apicid		= bigsmp_cpu_to_logical_apicid,
 	.cpu_present_to_apicid		= bigsmp_cpu_present_to_apicid,
-	.apicid_to_cpu_present		= apicid_to_cpu_present,
+	.apicid_to_cpu_present		= bigsmp_apicid_to_cpu_present,
 	.setup_portio_remap		= setup_portio_remap,
 	.check_phys_apicid_present	= check_phys_apicid_present,
 	.enable_apic_mode		= enable_apic_mode,