On 2/25/23 09:51, Tom Rix wrote: > > On 2/25/23 9:46 AM, Randy Dunlap wrote: >> Hi-- >> >> On 2/25/23 09:39, Tom Rix wrote: >>> A rand config causes this link error >>> ld: drivers/tty/serial/earlycon.o: in function `parse_options': >>> drivers/tty/serial/earlycon.c:99: undefined reference to `uart_parse_earlycon' >>> >>> The rand config has >>> CONFIG_SERIAL_CORE=m >>> CONFIG_SERIAL_EARLYCON=y >>> CONFIG_SERIAL_FSL_LPUART=m >>> CONFIG_SERIAL_FSL_LPUART_CONSOLE=y >>> >>> SERIAL_FSL_LPUART should have been selected instead of depends on-ed. >>> >>> Signed-off-by: Tom Rix <trix@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 625358f44419..b24d74d389fc 100644 >>> --- a/drivers/tty/serial/Kconfig >>> +++ b/drivers/tty/serial/Kconfig >>> @@ -1313,7 +1313,7 @@ config SERIAL_FSL_LPUART >>> config SERIAL_FSL_LPUART_CONSOLE >>> bool "Console on Freescale lpuart serial port" >>> - depends on SERIAL_FSL_LPUART >>> + select SERIAL_FSL_LPUART >> Most other _CONSOLE Kconfig have: >> >> depends on SERIAL_FSL_LPUART=y > > commit 5779a072c248db7a40cfd0f5ea958097fd1d9a30 removed the =y. so it could be built as a module. > uh. But it's still a bool, not a tristate. How does that work? > >> >> e.g. >> >> but I noticed a few others with a similar problem. >> >>> select SERIAL_CORE_CONSOLE >>> select SERIAL_EARLYCON >>> help > -- ~Randy