When set CONFIG_SERIAL_EARLYCON=y and CONFIG_SERIAL_CORE=m, there is
a compile error as below:
ld: vmlinux.o: in function `parse_options.constprop.0':
earlycon.c:(.init.text+0xba5a3): undefined reference to `uart_parse_earlycon'
Since the SERIAL_EARLYCON use 'uart_parse_earlycon' which defined in
SERIAL_CORE, so should select rather than depends on.
Fixes: 9aac5887595b ("tty/serial: add generic serial earlycon")
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@xxxxxxxxxx>
---
drivers/tty/serial/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 434f83168546..803f3dae793c 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -8,7 +8,7 @@ menu "Serial drivers"
config SERIAL_EARLYCON
bool
- depends on SERIAL_CORE
+ select SERIAL_CORE
help
Support for early consoles with the earlycon parameter. This enables
the console before standard serial driver is probed. The console is
--
2.31.1
