x86: clean up apic->apic_id_registered() methods

Impact: cleanup

x86 subarchitectures each defined a "apic_id_registered()" method,
which could be an inline function depending on which subarch we build
for, and which was also the name of a genapic field.

Untangle this namespace spaghetti by giving each of the instances
a separate name.

Also remove wrapper macro obfuscation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/include/asm/bigsmp/apic.h b/arch/x86/include/asm/bigsmp/apic.h
index d8dd9f5..42c56df 100644
--- a/arch/x86/include/asm/bigsmp/apic.h
+++ b/arch/x86/include/asm/bigsmp/apic.h
@@ -4,9 +4,9 @@
 #define xapic_phys_to_log_apicid(cpu) (per_cpu(x86_bios_cpu_apicid, cpu))
 #define esr_disable (1)
 
-static inline int apic_id_registered(void)
+static inline int bigsmp_apic_id_registered(void)
 {
-	return (1);
+	return 1;
 }
 
 static inline const cpumask_t *target_cpus(void)
diff --git a/arch/x86/include/asm/es7000/apic.h b/arch/x86/include/asm/es7000/apic.h
index c58b9cc..a1819b5 100644
--- a/arch/x86/include/asm/es7000/apic.h
+++ b/arch/x86/include/asm/es7000/apic.h
@@ -6,9 +6,9 @@
 #define xapic_phys_to_log_apicid(cpu) per_cpu(x86_bios_cpu_apicid, cpu)
 #define esr_disable (1)
 
-static inline int apic_id_registered(void)
+static inline int es7000_apic_id_registered(void)
 {
-	        return (1);
+	        return 1;
 }
 
 static inline const cpumask_t *target_cpus_cluster(void)
diff --git a/arch/x86/include/asm/mach-default/mach_apic.h b/arch/x86/include/asm/mach-default/mach_apic.h
index 2448b92..6a454fa 100644
--- a/arch/x86/include/asm/mach-default/mach_apic.h
+++ b/arch/x86/include/asm/mach-default/mach_apic.h
@@ -25,7 +25,6 @@
 #define INT_DELIVERY_MODE (apic->int_delivery_mode)
 #define INT_DEST_MODE (apic->int_dest_mode)
 #define TARGET_CPUS	  (apic->target_cpus())
-#define apic_id_registered (apic->apic_id_registered)
 #define init_apic_ldr (apic->init_apic_ldr)
 #define cpu_mask_to_apicid (apic->cpu_mask_to_apicid)
 #define cpu_mask_to_apicid_and (apic->cpu_mask_to_apicid_and)
@@ -57,7 +56,7 @@
 	apic_write(APIC_LDR, val);
 }
 
-static inline int apic_id_registered(void)
+static inline int default_apic_id_registered(void)
 {
 	return physid_isset(read_apic_id(), phys_cpu_present_map);
 }
diff --git a/arch/x86/include/asm/mach-generic/mach_apic.h b/arch/x86/include/asm/mach-generic/mach_apic.h
index 59972d9..cc6e9d7 100644
--- a/arch/x86/include/asm/mach-generic/mach_apic.h
+++ b/arch/x86/include/asm/mach-generic/mach_apic.h
@@ -10,7 +10,6 @@
 #undef APIC_DEST_LOGICAL
 #define APIC_DEST_LOGICAL (apic->apic_destination_logical)
 #define TARGET_CPUS	  (apic->target_cpus())
-#define apic_id_registered (apic->apic_id_registered)
 #define init_apic_ldr (apic->init_apic_ldr)
 #define ioapic_phys_id_map (apic->ioapic_phys_id_map)
 #define setup_apic_routing (apic->setup_apic_routing)
diff --git a/arch/x86/include/asm/numaq/apic.h b/arch/x86/include/asm/numaq/apic.h
index bf37bc4..59b62b1 100644
--- a/arch/x86/include/asm/numaq/apic.h
+++ b/arch/x86/include/asm/numaq/apic.h
@@ -28,7 +28,7 @@
 }
 #define apicid_cluster(apicid) (apicid & 0xF0)
 
-static inline int apic_id_registered(void)
+static inline int numaq_apic_id_registered(void)
 {
 	return 1;
 }
diff --git a/arch/x86/include/asm/summit/apic.h b/arch/x86/include/asm/summit/apic.h
index 93d2c86..a36ef6e 100644
--- a/arch/x86/include/asm/summit/apic.h
+++ b/arch/x86/include/asm/summit/apic.h
@@ -74,7 +74,7 @@
 	return 0;
 }
 
-static inline int apic_id_registered(void)
+static inline int summit_apic_id_registered(void)
 {
 	return 1;
 }