On 2/25/23 10:03, Randy Dunlap wrote: > > > 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? OK, I see. :) Well, I don't see another decent solution ATM. Tom, does your patch fix the build error? What are the listed CONFIG settings after the patch? Thanks. >>> e.g. >>> >>> but I noticed a few others with a similar problem. >>> >>>> select SERIAL_CORE_CONSOLE >>>> select SERIAL_EARLYCON >>>> help >> > -- ~Randy