When SERIAL_IMX_EARLYCON is enabled, and SERIAL_CORE is disabled, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for SERIAL_EARLYCON Depends on [n]: TTY [=y] && HAS_IOMEM [=y] && SERIAL_CORE [=n] Selected by [y]: - SERIAL_IMX_EARLYCON [=y] && TTY [=y] && HAS_IOMEM [=y] && (ARCH_MXC [=y] || COMPILE_TEST [=n]) && OF [=y] This is because SERIAL_IMX_EARLYCON selects SERIAL_EARLYCON, without selecting SERIAL_CORE, despite that config option depending on SERIAL_CORE. Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx> --- drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 0c4cd4a348f4..5105fdfb71b8 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -498,6 +498,7 @@ config SERIAL_IMX_EARLYCON bool "Earlycon on IMX serial port" depends on ARCH_MXC || COMPILE_TEST depends on OF + select SERIAL_CORE select SERIAL_EARLYCON select SERIAL_CORE_CONSOLE default y if SERIAL_IMX_CONSOLE -- 2.27.0
