[PATCH 5.9 333/757] tty: serial: imx: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n

Greg Kroah-Hartman
2020-10-27T15:44:02Z

From: Yang Yingliang <yangyingliang@huawei.com>

[ Upstream commit 24c796926e2f88b383a76ddc871a7cdd62484f3a ]

aarch64-linux-gnu-ld: drivers/tty/serial/imx_earlycon.o: in function `imx_uart_console_early_write':
imx_earlycon.c:(.text+0x84): undefined reference to `uart_console_write'

The driver uses the uart_console_write(), but SERIAL_CORE_CONSOLE is not
selected, so uart_console_write is not defined, then we get the error.
Fix this by selecting SERIAL_CORE_CONSOLE.

Fixes: 699cc4dfd140 ("tty: serial: imx: add imx earlycon driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20200919063240.2754965-1-yangyingliang@huawei.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 54586c1aba60b..20b98a3ba0466 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -521,6 +521,7 @@ config SERIAL_IMX_EARLYCON
depends on ARCH_MXC || COMPILE_TEST
depends on OF
select SERIAL_EARLYCON
+ select SERIAL_CORE_CONSOLE
help
If you have enabled the earlycon on the Freescale IMX
CPU you can make it the earlycon by answering Y to this option.
--
2.25.1