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>
diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index 3c7367b..71fd96d 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -19,8 +19,6 @@
#include "common.h"
-DEFINE_RAW_SPINLOCK(i8253_lock);
-
static void pit_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index 82b5a9f..3d2ff57 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -16,9 +16,6 @@
#include <asm/io.h>
#include <asm/time.h>
-DEFINE_RAW_SPINLOCK(i8253_lock);
-EXPORT_SYMBOL(i8253_lock);
-
/*
* Initialize the PIT timer.
*
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da34972..e6060a1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@
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 3235550..9c92b6f 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