[PATCH 6/7] drivers: usb: Mark function as static in metro-usb.c

[Rashika Kheria]

Mark function metrousb_is_unidirectional_mode() in serial/metro-usb.c
because it is not used outside this file.

This eliminates the following warning in serial/metro-usb.c:
drivers/usb/serial/metro-usb.c:57:12: warning: no previous prototype for âmetrousb_is_unidirectional_modeâ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@xxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
 drivers/usb/serial/metro-usb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 40ccf6e..2b648c4 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -54,7 +54,7 @@ MODULE_DEVICE_TABLE(usb, id_table);
 #define UNI_CMD_OPEN	0x80
 #define UNI_CMD_CLOSE	0xFF
 
-inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port)
+static inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port)
 {
 	__u16 product_id = le16_to_cpu(
 		port->serial->dev->descriptor.idProduct);
-- 
1.7.9.5

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