i8253: Consolidate all kernel definitions of i8253_lock

Move them to drivers/clocksource/i8253.c and remove the
implementations in arch/

[ tglx: Avoid the extra file in lib - folded arch patches in. The
  export will become conditional in a later step ]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Link: http://lkml.kernel.org/r/20110601180610.221426078@duck.linux-mips.net
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 1 insertions, 3 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da349723d411..e6060a1c1b58 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@ config X86
         select IRQ_FORCED_THREADING
         select USE_GENERIC_SMP_HELPERS if SMP
         select HAVE_BPF_JIT if (X86_64 && NET)
+        select I8253_LOCK
 
 config INSTRUCTION_DECODER
         def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index 323555050f89..9c92b6ff571f 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -16,9 +16,6 @@
 #include <asm/hpet.h>
 #include <asm/smp.h>
 
-DEFINE_RAW_SPINLOCK(i8253_lock);
-EXPORT_SYMBOL(i8253_lock);
-
 /*
  * HPET replaces the PIT, when enabled. So we need to know, which of
  * the two timers is used