i386: timer_irq_works() static again

timer_irq_works() needlessly became global.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/i386/kernel/io_apic.c

diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 21db8f5..1bc4f7e 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -1902,7 +1902,7 @@
  *	- if this function detects that timer IRQs are defunct, then we fall
  *	  back to ISA timer IRQs
  */
-int __init timer_irq_works(void)
+static int __init timer_irq_works(void)
 {
 	unsigned long t1 = jiffies;