From c140e97f803f66c0d20a891aba848c1b77880830 Mon Sep 17 00:00:00 2001 From: Mao Wenan Date: Tue, 20 Aug 2019 20:40:15 +0800 Subject: [PATCH] tty: serial: add dependence for CONFIG_SERIAL_FSL_LINFLEXUART When CONFIG_SERIAL_FSL_LINFLEXUART=y and CONFIG_PRINTK is not set, one compilation error is found as below: drivers/tty/serial/fsl_linflexuart.c: In function linflex_earlycon_putchar: drivers/tty/serial/fsl_linflexuart.c:608:31: error: CONFIG_LOG_BUF_SHIFT undeclared (first use in this function); did you mean CONFIG_ISA_BUS_API? if (earlycon_buf.len >= 1 << CONFIG_LOG_BUF_SHIFT) ^~~~~~~~~~~~~~~~~~~~ CONFIG_ISA_BUS_API This because CONFIG_LOG_BUF_SHIFT is depended on CONFIG_PRINTK, fix this by adding dependence for CONFIG_SERIAL_FSL_LINFLEXUART. Fixes: b953815b819b ("tty: serial: Add linflexuart driver for S32V234") Signed-off-by: Mao Wenan Link: https://lore.kernel.org/r/20190820124015.28409-1-maowenan@huawei.com Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index db524e2c6db3..f1e9a43e46e7 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1418,6 +1418,7 @@ config SERIAL_FSL_LPUART_CONSOLE config SERIAL_FSL_LINFLEXUART tristate "Freescale linflexuart serial port support" + depends on PRINTK select SERIAL_CORE help Support for the on-chip linflexuart on some Freescale SOCs.