[PATCH] tty: serial/8250: remove console dependency for mediatek
From: arnd@arndb.de (Arnd Bergmann)
Date: 2015-05-19 20:11:25
Also in:
linux-mediatek, linux-serial, lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Linus Torvalds, Jiri Slaby
If the mediatek serial port driver is built-in, but serial console is disabled in Kconfig (e.g. when the serial driver itself is a loadable module), we get this build error: drivers/built-in.o: In function `early_mtk8250_setup': undefined reference to `early_serial8250_setup' To avoid that problem, this patch encloses the early_mtk8250_setup function in #ifdef CONFIG_SERIAL_8250_CONSOLE, the same symbol that guards the early_serial8250_setup function. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index 4488c2bdb7ba..78883ca64ddd 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c@@ -305,6 +305,7 @@ static struct platform_driver mtk8250_platform_driver = { }; module_platform_driver(mtk8250_platform_driver); +#ifdef CONFIG_SERIAL_8250_CONSOLE static int __init early_mtk8250_setup(struct earlycon_device *device, const char *options) {
@@ -317,6 +318,7 @@ static int __init early_mtk8250_setup(struct earlycon_device *device, } OF_EARLYCON_DECLARE(mtk8250, "mediatek,mt6577-uart", early_mtk8250_setup); +#endif MODULE_AUTHOR("Matthias Brugger"); MODULE_LICENSE("GPL");