[PATCH] x86: i8253/i8259A lock cleanup

Introduce proper declarations for i8253_lock and i8259A_lock.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h
index 3257374..a8babd2 100644
--- a/include/asm-x86_64/io_apic.h
+++ b/include/asm-x86_64/io_apic.h
@@ -217,4 +217,6 @@
 
 void enable_NMI_through_LVT0 (void * dummy);
 
+extern spinlock_t i8259A_lock;
+
 #endif