When DELL_WMI=y, DELL_WMI_PRIVACY=y, and LEDS_TRIGGER_AUDIO=m, there is a linker error since the LEDS trigger code is built as a loadable module. This happens because DELL_WMI_PRIVACY is a bool that depends on a tristate (LEDS_TRIGGER_AUDIO=m), which can be dangerous. ld: drivers/platform/x86/dell/dell-wmi-privacy.o: in function `dell_privacy_wmi_probe': dell-wmi-privacy.c:(.text+0x3df): undefined reference to `ledtrig_audio_get' Fixes: 8af9fa37b8a3 ("platform/x86: dell-privacy: Add support for Dell hardware privacy") Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Perry Yuan <Perry.Yuan@xxxxxxxx> Cc: Dell.Client.Kernel@xxxxxxxx Cc: platform-driver-x86@xxxxxxxxxxxxxxx Cc: Hans de Goede <hdegoede@xxxxxxxxxx> Cc: Mark Gross <mgross@xxxxxxxxxxxxxxx> --- drivers/platform/x86/dell/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- linux-next-20210917.orig/drivers/platform/x86/dell/Kconfig +++ linux-next-20210917/drivers/platform/x86/dell/Kconfig @@ -166,8 +166,7 @@ config DELL_WMI config DELL_WMI_PRIVACY bool "Dell WMI Hardware Privacy Support" - depends on DELL_WMI - depends on LEDS_TRIGGER_AUDIO + depends on LEDS_TRIGGER_AUDIO = y || DELL_WMI = LEDS_TRIGGER_AUDIO help This option adds integration with the "Dell Hardware Privacy" feature of Dell laptops to the dell-wmi driver.