[PATCH] irq_affinity: fix build when CONFIG_PROC_FS=n

Need 'irq_affinity' array when CONFIG_PROC_FS=n.

With CONFIG_PROC_FS=n, the irq_affinity[NR_IRQS] array
is not available in arch/i386/kernel code:

arch/i386/kernel/built-in.o(.text+0x10037): In function `do_irq_balance':
: undefined reference to `irq_affinity'
arch/i386/kernel/built-in.o(.text+0x101a9): In function `do_irq_balance':
: undefined reference to `irq_affinity'
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/irq/manage.c

@@ -15,6 +15,8 @@
 
 #ifdef CONFIG_SMP
 
+cpumask_t irq_affinity[NR_IRQS] = { [0 ... NR_IRQS-1] = CPU_MASK_ALL };
+
 /**
  *	synchronize_irq - wait for pending IRQ handlers (on other CPUs)
  *

kernel/irq/proc.c

@@ -19,8 +19,6 @@ static struct proc_dir_entry *root_irq_dir, *irq_dir[NR_IRQS];
  */
 static struct proc_dir_entry *smp_affinity_entry[NR_IRQS];
 
-cpumask_t irq_affinity[NR_IRQS] = { [0 ... NR_IRQS-1] = CPU_MASK_ALL };
-
 static int irq_affinity_read_proc(char *page, char **start, off_t off,
 				  int count, int *eof, void *data)
 {