x86: remove first_free_entry/pin_map_size

no user now
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/io_apic.c

@@ -72,13 +72,6 @@ int sis_apic_bug = -1;
 static DEFINE_SPINLOCK(ioapic_lock);
 static DEFINE_SPINLOCK(vector_lock);
 
-int first_free_entry;
-/*
- * Rough estimation of how many shared IRQs there are, can
- * be changed anytime.
- */
-int pin_map_size;
-
 /*
  * # of IRQ routing registers
  */

arch/x86/kernel/setup.c

@@ -1074,10 +1074,6 @@ void __init setup_arch(char **cmdline_p)
 		nr_irqs = 32 * nr_cpu_ids + 224;
 	init_cpu_to_node();
 #endif
-#ifdef CONFIG_X86_IO_APIC
-	pin_map_size = nr_irqs * 2;
-	first_free_entry = nr_irqs;
-#endif
 
 	init_apic_mappings();
 	ioapic_init_mappings();

include/asm-x86/irq.h

@@ -10,9 +10,6 @@
 #include <asm/apicdef.h>
 #include <asm/irq_vectors.h>
 
-extern int pin_map_size;
-extern int first_free_entry;
-
 static inline int irq_canonicalize(int irq)
 {
 	return ((irq == 2) ? 9 : irq);