serial: make serial_stub_* to static functions
Add missing static to serial_stub_puts().
Unexport serial_stub_{getc,tstc} because they are used locally.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index f2bd0e4..87542f9 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -273,14 +273,14 @@
dev->puts(str);
}
-int serial_stub_getc(struct stdio_dev *sdev)
+static int serial_stub_getc(struct stdio_dev *sdev)
{
struct serial_device *dev = sdev->priv;
return dev->getc();
}
-int serial_stub_tstc(struct stdio_dev *sdev)
+static int serial_stub_tstc(struct stdio_dev *sdev)
{
struct serial_device *dev = sdev->priv;