linux-kernel - [PATCH 1/8] ACPI: processor: export necessary interfaces

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Date:	Wed, 30 Nov 2011 12:20:57 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	ke.yu@...el.com, kevin.tian@...el.com,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	lenb@...nel.org, rjw@...k.pl
Cc:	xen-devel@...ts.xensource.com, jeremy@...p.org, konrad@...nel.org,
	stefan.bader@...onical.com, Ian.Campbell@...rix.com,
	mike.mcclurg@...rix.com, liang.tang@...cle.com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 1/8] ACPI: processor: export necessary interfaces

From: Kevin Tian <kevin.tian@...el.com>

This patch export some necessary functions which parse processor
power management information. The Xen ACPI processor driver uses them.

Signed-off-by: Yu Ke <ke.yu@...el.com>
Signed-off-by: Tian Kevin <kevin.tian@...el.com>
Signed-off-by: Tang Liang <liang.tang@...cle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 drivers/acpi/processor_driver.c  |   11 +++--------
 drivers/acpi/processor_perflib.c |    4 ++--
 include/acpi/processor.h         |   10 +++++++++-
 3 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 9d7bc9f..211c078 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -79,9 +79,6 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI Processor Driver");
 MODULE_LICENSE("GPL");
 
-static int acpi_processor_add(struct acpi_device *device);
-static int acpi_processor_remove(struct acpi_device *device, int type);
-static void acpi_processor_notify(struct acpi_device *device, u32 event);
 static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
 static int acpi_processor_handle_eject(struct acpi_processor *pr);
 
@@ -378,7 +375,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
 
 static DEFINE_PER_CPU(void *, processor_device_array);
 
-static void acpi_processor_notify(struct acpi_device *device, u32 event)
+void acpi_processor_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_processor *pr = acpi_driver_data(device);
 	int saved;
@@ -442,7 +439,7 @@ static struct notifier_block acpi_cpu_notifier =
 	    .notifier_call = acpi_cpu_soft_notify,
 };
 
-static int __cpuinit acpi_processor_add(struct acpi_device *device)
+int __cpuinit acpi_processor_add(struct acpi_device *device)
 {
 	struct acpi_processor *pr = NULL;
 	int result = 0;
@@ -545,7 +542,7 @@ err_free_cpumask:
 	return result;
 }
 
-static int acpi_processor_remove(struct acpi_device *device, int type)
+int acpi_processor_remove(struct acpi_device *device, int type)
 {
 	struct acpi_processor *pr = NULL;
 
@@ -758,7 +755,6 @@ static int acpi_processor_handle_eject(struct acpi_processor *pr)
 }
 #endif
 
-static
 void acpi_processor_install_hotplug_notify(void)
 {
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
@@ -771,7 +767,6 @@ void acpi_processor_install_hotplug_notify(void)
 	register_hotcpu_notifier(&acpi_cpu_notifier);
 }
 
-static
 void acpi_processor_uninstall_hotplug_notify(void)
 {
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 85b3237..22c6195 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -386,7 +386,7 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
 	return result;
 }
 
-static int acpi_processor_get_performance_info(struct acpi_processor *pr)
+int acpi_processor_get_performance_info(struct acpi_processor *pr)
 {
 	int result = 0;
 	acpi_status status = AE_OK;
@@ -492,7 +492,7 @@ int acpi_processor_notify_smm(struct module *calling_module)
 
 EXPORT_SYMBOL(acpi_processor_notify_smm);
 
-static int acpi_processor_get_psd(struct acpi_processor	*pr)
+int acpi_processor_get_psd(struct acpi_processor	*pr)
 {
 	int result = 0;
 	acpi_status status = AE_OK;
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 610f6fb..12657bb 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -239,6 +239,12 @@ extern void acpi_processor_unregister_performance(struct
          if a _PPC object exists, rmmod is disallowed then */
 int acpi_processor_notify_smm(struct module *calling_module);
 
+void acpi_processor_install_hotplug_notify(void);
+void acpi_processor_uninstall_hotplug_notify(void);
+
+int acpi_processor_add(struct acpi_device *device);
+int acpi_processor_remove(struct acpi_device *device, int type);
+void acpi_processor_notify(struct acpi_device *device, u32 event);
 /* for communication between multiple parts of the processor kernel module */
 DECLARE_PER_CPU(struct acpi_processor *, processors);
 extern struct acpi_processor_errata errata;
@@ -278,7 +284,9 @@ static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
 void acpi_processor_ppc_init(void);
 void acpi_processor_ppc_exit(void);
 int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
-extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
+int acpi_processor_get_performance_info(struct acpi_processor *pr);
+int acpi_processor_get_psd(struct acpi_processor *pr);
+int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
 #else
 static inline void acpi_processor_ppc_init(void)
 {
-- 
1.7.7.3

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