On an powerpc allmodconfig build, the following is seen: paul@builder:~/git/linux-head$ make O=../ppc-build -j30 > /dev/null drivers/built-in.o: In function `.setup_earlycon': (.init.text+0x5b00): undefined reference to `.uart_parse_earlycon' make[1]: *** [vmlinux] Error 1 Since uart_parse_earlycon lives in serial_core.c we need to ensure it is built in if early console is to be used. Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Jiri Slaby <jslaby@xxxxxxxx> Cc: linux-serial@xxxxxxxxxxxxxxx Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx> --- [A google shows this cropped up in April of this year; I guess it wasn't completely fixed? http://lists.infradead.org/pipermail/linux-arm-kernel/2015-April/336954.html FWIW, I was testing on tty/tty-testing pulled today, from Greg ] drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 1aec4404062d..a646047e4051 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=y help Support for early consoles with the earlycon parameter. This enables the console before standard serial driver is probed. The console is -- 2.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
