--- zzzz-none-000/linux-3.10.107/drivers/usb/serial/metro-usb.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/usb/serial/metro-usb.c	2021-02-04 17:41:59.000000000 +0000
@@ -7,7 +7,6 @@
 */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
 #include <linux/tty.h>
 #include <linux/module.h>
 #include <linux/usb.h>
@@ -43,7 +42,7 @@
 };
 
 /* Device table list. */
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) },
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
 	{ }, /* Terminating entry. */
@@ -54,7 +53,7 @@
 #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);
@@ -224,8 +223,8 @@
 	result = metrousb_send_unidirectional_cmd(UNI_CMD_OPEN, port);
 	if (result) {
 		dev_err(&port->dev,
-			"%s - failed to configure device for port number=%d, error code=%d\n",
-			__func__, port->number, result);
+			"%s - failed to configure device, error code=%d\n",
+			__func__, result);
 		goto exit;
 	}