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ACPI: bus: Constify acpi_companion_match() returned value

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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>
This commit is contained in:
Andy Shevchenko 2023-06-26 14:00:23 +03:00 • committed by Rafael J. Wysocki
parent bb6950556d
commit 86fca926c0
3 changed files with 5 additions and 5 deletions
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6
drivers/acpi/bus.c
View file

@ -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,

2
drivers/acpi/device_sysfs.c
View file

@ -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;

2
drivers/acpi/internal.h
View file

@ -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);