serial: stm32: Make stm32_get_databits static

Fix sparse warning:

drivers/tty/serial/stm32-usart.c:603:14: warning:
 symbol 'stm32_get_databits' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 04eda75..4c217fb 100644 (file)
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -600,7 +600,7 @@ static void stm32_shutdown(struct uart_port *port)
        free_irq(port->irq, port);
 }
 
-unsigned int stm32_get_databits(struct ktermios *termios)
+static unsigned int stm32_get_databits(struct ktermios *termios)
 {
        unsigned int bits;