In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. As ACPI always uses I/O port access we simply depend on HAS_IOPORT. Co-developed-by: Arnd Bergmann <arnd@xxxxxxxxxx> Signed-off-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx> --- drivers/acpi/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 1e34f846508f..c90c983db94c 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -9,6 +9,7 @@ config ARCH_SUPPORTS_ACPI menuconfig ACPI bool "ACPI (Advanced Configuration and Power Interface) Support" depends on ARCH_SUPPORTS_ACPI + depends on HAS_IOPORT select PNP select NLS select CRC32 -- 2.32.0