[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/drivers/ide/legacy/hd.c b/drivers/ide/legacy/hd.c
index e884cd4..242029c 100644
--- a/drivers/ide/legacy/hd.c
+++ b/drivers/ide/legacy/hd.c
@@ -156,11 +156,13 @@
 
 
 #if (HD_DELAY > 0)
+
+#include <asm/i8253.h>
+
 unsigned long last_req;
 
 unsigned long read_timer(void)
 {
-        extern spinlock_t i8253_lock;
 	unsigned long t, flags;
 	int i;