The function acpi_blacklisted() is defined only when CONFIG_X86 is enabled. So to keep it consistent, protect its declaration with CONFIG_X86. Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> --- include/linux/acpi.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 34829f2c517a..3ad6bed9eb4f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -421,7 +421,9 @@ extern char *wmi_get_acpi_device_uid(const char *guid); extern char acpi_video_backlight_string[]; extern long acpi_is_video_device(acpi_handle handle); +#ifdef CONFIG_X86 extern int acpi_blacklisted(void); +#endif extern void acpi_osi_setup(char *str); extern bool acpi_osi_is_win8(void); -- 2.34.1