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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2023-06-26 14:00:23 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-06-29 11:40:55 +0200
commit86fca926c042138c7defc94e1b55b5f29ca4fa13 (patch)
tree922eaa5e684ea8a8988e81d2ca3700f7dc3b8eda
parentbb6950556d4b1dd1226c1f09e84b53cb37e5340f (diff)
ACPI: bus: Constify acpi_companion_match() returned value
acpi_companion_match() doesn't alter the contents of the passed parameter, so we don't expect that returned value can be altered either. So constify it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/bus.c6
-rw-r--r--drivers/acpi/device_sysfs.c2
-rw-r--r--drivers/acpi/internal.h2
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e3e0bd0c5a50..20cdfb37da79 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -682,7 +682,7 @@ bool acpi_device_is_first_physical_node(struct acpi_device *adev,
* resources available from it but they will be matched normally using functions
* provided by their bus types (and analogously for their modalias).
*/
-struct acpi_device *acpi_companion_match(const struct device *dev)
+const struct acpi_device *acpi_companion_match(const struct device *dev)
{
struct acpi_device *adev;
@@ -706,7 +706,7 @@ struct acpi_device *acpi_companion_match(const struct device *dev)
* identifiers and a _DSD object with the "compatible" property, use that
* property to match against the given list of identifiers.
*/
-static bool acpi_of_match_device(struct acpi_device *adev,
+static bool acpi_of_match_device(const struct acpi_device *adev,
const struct of_device_id *of_match_table,
const struct of_device_id **of_id)
{
@@ -808,7 +808,7 @@ static bool __acpi_match_device_cls(const struct acpi_device_id *id,
return true;
}
-static bool __acpi_match_device(struct acpi_device *device,
+static bool __acpi_match_device(const struct acpi_device *device,
const struct acpi_device_id *acpi_ids,
const struct of_device_id *of_ids,
const struct acpi_device_id **acpi_id,
diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index 0fbfbaa8d8e3..b9bbf0746199 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -283,7 +283,7 @@ int acpi_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env
}
EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias);
-static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
+static int __acpi_device_modalias(const struct acpi_device *adev, char *buf, int size)
{
int len, count;
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 06ad497067ac..95501a148591 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -119,7 +119,7 @@ int acpi_bus_register_early_device(int type);
/* --------------------------------------------------------------------------
Device Matching and Notification
-------------------------------------------------------------------------- */
-struct acpi_device *acpi_companion_match(const struct device *dev);
+const struct acpi_device *acpi_companion_match(const struct device *dev);
int __acpi_device_uevent_modalias(const struct acpi_device *adev,
struct kobj_uevent_env *env);