driver core: Provide device_match_acpi_handle() helper

We have a couple of users of this helper, make it available for them.

The prototype for the helper is specifically crafted in order to be
easily used with bus_find_device() call. That's why its location is
in the driver core rather than ACPI.

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211014134756.39092-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/core.c b/drivers/base/core.c
index b67ebe6a323cde0e858d13355d010037055a1269..fd034d74244722769239e31a62054ef1fc8d70e2 100644 (file)
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4838,6 +4838,12 @@ int device_match_acpi_dev(struct device *dev, const void *adev)
 }
 EXPORT_SYMBOL(device_match_acpi_dev);
 
+int device_match_acpi_handle(struct device *dev, const void *handle)
+{
+       return ACPI_HANDLE(dev) == handle;
+}
+EXPORT_SYMBOL(device_match_acpi_handle);
+
 int device_match_any(struct device *dev, const void *unused)
 {
        return 1;

diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 062777a45a74d20a300a9c4446971de649b40fb3..a039ab809753fd46c94d61e38c345daa281f620e 100644 (file)
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -143,6 +143,7 @@ int device_match_of_node(struct device *dev, const void *np);
 int device_match_fwnode(struct device *dev, const void *fwnode);
 int device_match_devt(struct device *dev, const void *pdevt);
 int device_match_acpi_dev(struct device *dev, const void *adev);
+int device_match_acpi_handle(struct device *dev, const void *handle);
 int device_match_any(struct device *dev, const void *unused);
 
 /* iterator helpers for buses */