From: Tong Zhang ztong0001@gmail.com
[ Upstream commit 0fb9342d06b0f667b915ba58bfefc030e534a218 ]
parse_options() in drivers/tty/serial/earlycon.c calls uart_parse_earlycon in drivers/tty/serial/serial_core.c therefore selecting SERIAL_EARLYCON should automatically select SERIAL_CORE, otherwise will result in symbol not found error during linking if SERIAL_CORE is not configured as builtin
Fixes: 9aac5887595b ("tty/serial: add generic serial earlycon") Signed-off-by: Tong Zhang ztong0001@gmail.com Link: https://lore.kernel.org/r/20200828123949.2642-1-ztong0001@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index f38beb28e7ae6..5c3c86d4fe716 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -9,6 +9,7 @@ menu "Serial drivers"
config SERIAL_EARLYCON bool + depends on SERIAL_CORE help Support for early consoles with the earlycon parameter. This enables the console before standard serial driver is probed. The console is