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| author | Arnd Bergmann <arnd@arndb.de> | 2016-02-17 18:02:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-08 03:11:14 +0300 |
| commit | 3f5921a60f74e3f3ac975884759208cb9497b461 (patch) | |
| tree | 3c15c996fa069c4a7562786d9ac6c33ea64a6396 /drivers/tty | |
| parent | 7d774fb8ca8c8686413ce847dc74473cc6196e7d (diff) | |
| download | linux-3f5921a60f74e3f3ac975884759208cb9497b461.tar.xz | |
serial: 8250/mediatek: fix building with SERIAL_8250=m
The Mediatek 8250 driver has a 'bool' Kconfig symbol, but that
breaks when SERIAL_8250 is a loadable module:
drivers/tty/built-in.o: In function `mtk8250_set_termios':
:(.text+0x1bee8): undefined reference to `serial8250_do_set_termios'
:(.text+0x1bf10): undefined reference to `uart_get_baud_rate'
:(.text+0x1c09c): undefined reference to `uart_get_divisor'
drivers/tty/built-in.o: In function `mtk8250_do_pm':
:(.text+0x1c0d0): undefined reference to `serial8250_do_pm'
drivers/tty/built-in.o: In function `mtk8250_probe':
:(.text+0x1c2e4): undefined reference to `serial8250_register_8250_port'
serial/8250/8250_mtk.c:287:242: error: data definition has no type or storage class [-Werror]
serial/8250/8250_mtk.c:287:122: error: 'mtk8250_platform_driver_init' defined but not used [-Werror=unused-function]
This changes the symbol to a 'tristate', so the dependency on
SERIAL_8250 also works when that is set to 'm'.
To actually build the driver, we also need to include <linux/module.h>.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_mtk.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c index 6ecc6e3e82dc..a0294f3de4f8 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -303,7 +303,7 @@ static struct platform_driver mtk8250_platform_driver = { }; module_platform_driver(mtk8250_platform_driver); -#ifdef CONFIG_SERIAL_8250_CONSOLE +#if defined(CONFIG_SERIAL_8250_CONSOLE) && !defined(MODULE) static int __init early_mtk8250_setup(struct earlycon_device *device, const char *options) { diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index a9d258715406..bb1b95a1f8b0 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -371,7 +371,7 @@ config SERIAL_8250_LPC18XX serial port, say Y to this option. If unsure, say Y. config SERIAL_8250_MT6577 - bool "Mediatek serial port support" + tristate "Mediatek serial port support" depends on SERIAL_8250 && ARCH_MEDIATEK help If you have a Mediatek based board and want to use the |