kernel test robot reports over 200 build errors and warnings that are due to this Kconfig problem when CARL9170=m, MAC80211=y, and LEDS_CLASS=m. WARNING: unmet direct dependencies detected for MAC80211_LEDS Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y]) Selected by [m]: - CARL9170_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && CARL9170 [=m] CARL9170_LEDS selects MAC80211_LEDS even though its kconfig dependencies are not met. This happens because 'select' does not follow any Kconfig dependency chains. Fix this by making CARL9170_LEDS depend on MAC80211_LEDS, where the latter supplies any needed dependencies on LEDS_CLASS. Fixes: 1d7e1e6b1b8ed ("carl9170: Makefile, Kconfig files and MAINTAINERS") Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Cc: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> Cc: linux-wireless@xxxxxxxxxxxxxxx Cc: Arnd Bergmann <arnd@xxxxxxxx> Suggested-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> --- v2: modify as suggesed by Arnd v3: modify as suggested by Christian drivers/net/wireless/ath/carl9170/Kconfig | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- linux-next-20210528.orig/drivers/net/wireless/ath/carl9170/Kconfig +++ linux-next-20210528/drivers/net/wireless/ath/carl9170/Kconfig @@ -16,13 +16,11 @@ config CARL9170 config CARL9170_LEDS bool "SoftLED Support" - depends on CARL9170 - select MAC80211_LEDS - select LEDS_CLASS - select NEW_LEDS default y + depends on CARL9170 + depends on MAC80211_LEDS help - This option is necessary, if you want your device' LEDs to blink + This option is necessary, if you want your device's LEDs to blink. Say Y, unless you need the LEDs for firmware debugging.