Hi Andy, On Fri, Jul 01, 2022 at 12:28:15AM +0300, Andy Shevchenko wrote: > extern long acpi_is_video_device(acpi_handle handle); > +extern bool acpi_match_video_device_handle(acpi_handle handle); I think we can do slightly better here. The only caller of acpi_is_video_device() is in drivers/acpi/video_detect.c so we can move it there and make it static (is_video_device()). Then we can name this one acpi_is_video_device() instead and in addition make it take struct acpi_device as parameter instead of acpi_handle (I think we should not use acpi_handles in drivers if possible).