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Date: Wed, 10 Aug 2022 18:14:22 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Linux PM <linux-pm@...r.kernel.org>,
linux-hwmon@...r.kernel.org, Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v1 1/5] ACPI: Rename acpi_bus_get/put_acpi_device()
From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Because acpi_bus_get_acpi_device() is completely analogous to
acpi_fetch_acpi_dev(), rename it to acpi_get_acpi_dev() and
add a kerneldoc comment to it.
Accordingly, rename acpi_bus_put_acpi_device() to acpi_put_acpi_dev()
and update all of the users of these two functions.
While at it, move the acpi_fetch_acpi_dev() header next to the
acpi_get_acpi_dev() header in the header file holding them.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
drivers/acpi/bus.c | 6 +++---
drivers/acpi/device_pm.c | 4 ++--
drivers/acpi/irq.c | 4 ++--
drivers/acpi/scan.c | 21 ++++++++++++++++-----
drivers/hwmon/acpi_power_meter.c | 2 +-
include/acpi/acpi_bus.h | 6 +++---
6 files changed, 27 insertions(+), 16 deletions(-)
Index: linux-pm/include/acpi/acpi_bus.h
===================================================================
--- linux-pm.orig/include/acpi/acpi_bus.h
+++ linux-pm/include/acpi/acpi_bus.h
@@ -511,7 +511,6 @@ extern int unregister_acpi_notifier(stru
* External Functions
*/
-struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle);
acpi_status acpi_bus_get_status_handle(acpi_handle handle,
unsigned long long *sta);
int acpi_bus_get_status(struct acpi_device *device);
@@ -766,9 +765,10 @@ static inline void acpi_dev_put(struct a
put_device(&adev->dev);
}
-struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
+struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle);
+struct acpi_device *acpi_get_acpi_dev(acpi_handle handle);
-static inline void acpi_bus_put_acpi_device(struct acpi_device *adev)
+static inline void acpi_put_acpi_dev(struct acpi_device *adev)
{
acpi_dev_put(adev);
}
Index: linux-pm/drivers/acpi/scan.c
===================================================================
--- linux-pm.orig/drivers/acpi/scan.c
+++ linux-pm/drivers/acpi/scan.c
@@ -429,7 +429,7 @@ void acpi_device_hotplug(struct acpi_dev
acpi_evaluate_ost(adev->handle, src, ost_code, NULL);
out:
- acpi_bus_put_acpi_device(adev);
+ acpi_put_acpi_dev(adev);
mutex_unlock(&acpi_scan_lock);
unlock_device_hotplug();
}
@@ -599,11 +599,22 @@ static void get_acpi_device(void *dev)
acpi_dev_get(dev);
}
-struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle)
+/**
+ * acpi_get_acpi_dev - Retrieve ACPI device object and reference count it.
+ * @handle: ACPI handle associated with the requested ACPI device object.
+ *
+ * Return a pointer to the ACPI device object associated with @handle and bump
+ * up that object's reference counter (under the ACPI Namespace lock), if
+ * present, or return NULL otherwise.
+ *
+ * The ACPI device object reference acquired by this function needs to be
+ * dropped via acpi_dev_put().
+ */
+struct acpi_device *acpi_get_acpi_dev(acpi_handle handle)
{
return handle_to_device(handle, get_acpi_device);
}
-EXPORT_SYMBOL_GPL(acpi_bus_get_acpi_device);
+EXPORT_SYMBOL_GPL(acpi_get_acpi_dev);
static struct acpi_device_bus_id *acpi_device_bus_id_match(const char *dev_id)
{
@@ -2238,7 +2249,7 @@ static int acpi_dev_get_first_consumer_d
{
struct acpi_device *adev;
- adev = acpi_bus_get_acpi_device(dep->consumer);
+ adev = acpi_get_acpi_dev(dep->consumer);
if (adev) {
*(struct acpi_device **)data = adev;
return 1;
@@ -2291,7 +2302,7 @@ static bool acpi_scan_clear_dep_queue(st
static int acpi_scan_clear_dep(struct acpi_dep_data *dep, void *data)
{
- struct acpi_device *adev = acpi_bus_get_acpi_device(dep->consumer);
+ struct acpi_device *adev = acpi_get_acpi_dev(dep->consumer);
if (adev) {
adev->dep_unmet--;
Index: linux-pm/drivers/acpi/bus.c
===================================================================
--- linux-pm.orig/drivers/acpi/bus.c
+++ linux-pm/drivers/acpi/bus.c
@@ -511,7 +511,7 @@ static void acpi_bus_notify(acpi_handle
break;
}
- adev = acpi_bus_get_acpi_device(handle);
+ adev = acpi_get_acpi_dev(handle);
if (!adev)
goto err;
@@ -524,14 +524,14 @@ static void acpi_bus_notify(acpi_handle
}
if (!hotplug_event) {
- acpi_bus_put_acpi_device(adev);
+ acpi_put_acpi_dev(adev);
return;
}
if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))
return;
- acpi_bus_put_acpi_device(adev);
+ acpi_put_acpi_dev(adev);
err:
acpi_evaluate_ost(handle, type, ost_code, NULL);
Index: linux-pm/drivers/acpi/device_pm.c
===================================================================
--- linux-pm.orig/drivers/acpi/device_pm.c
+++ linux-pm/drivers/acpi/device_pm.c
@@ -497,7 +497,7 @@ static void acpi_pm_notify_handler(acpi_
acpi_handle_debug(handle, "Wake notify\n");
- adev = acpi_bus_get_acpi_device(handle);
+ adev = acpi_get_acpi_dev(handle);
if (!adev)
return;
@@ -515,7 +515,7 @@ static void acpi_pm_notify_handler(acpi_
mutex_unlock(&acpi_pm_notifier_lock);
- acpi_bus_put_acpi_device(adev);
+ acpi_put_acpi_dev(adev);
}
/**
Index: linux-pm/drivers/acpi/irq.c
===================================================================
--- linux-pm.orig/drivers/acpi/irq.c
+++ linux-pm/drivers/acpi/irq.c
@@ -111,12 +111,12 @@ acpi_get_irq_source_fwhandle(const struc
if (WARN_ON(ACPI_FAILURE(status)))
return NULL;
- device = acpi_bus_get_acpi_device(handle);
+ device = acpi_get_acpi_dev(handle);
if (WARN_ON(!device))
return NULL;
result = &device->fwnode;
- acpi_bus_put_acpi_device(device);
+ acpi_put_acpi_dev(device);
return result;
}
Index: linux-pm/drivers/hwmon/acpi_power_meter.c
===================================================================
--- linux-pm.orig/drivers/hwmon/acpi_power_meter.c
+++ linux-pm/drivers/hwmon/acpi_power_meter.c
@@ -598,7 +598,7 @@ static int read_domain_devices(struct ac
continue;
/* Create a symlink to domain objects */
- obj = acpi_bus_get_acpi_device(element->reference.handle);
+ obj = acpi_get_acpi_dev(element->reference.handle);
resource->domain_devices[i] = obj;
if (!obj)
continue;
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