This function will be needed by the Thunderbolt driver when it parses ACPI description for linking tunneled ports to the Thunderbolt controller device. Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> --- drivers/acpi/bus.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 54002670cb7a..53cc1e0cef21 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -551,6 +551,7 @@ struct device *acpi_get_first_physical_node(struct acpi_device *adev) mutex_unlock(physical_node_lock); return phys_dev; } +EXPORT_SYMBOL_GPL(acpi_get_first_physical_node); static struct acpi_device *acpi_primary_dev_companion(struct acpi_device *adev, const struct device *dev) -- 2.28.0