Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 912472f..7e855c8 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -132,38 +132,32 @@
}
EXPORT_SYMBOL(usb_wwan_tiocmset);
-static int get_serial_info(struct usb_serial_port *port,
- struct serial_struct __user *retinfo)
+int usb_wwan_get_serial_info(struct tty_struct *tty,
+ struct serial_struct *ss)
{
- struct serial_struct tmp;
+ struct usb_serial_port *port = tty->driver_data;
- memset(&tmp, 0, sizeof(tmp));
- tmp.line = port->minor;
- tmp.port = port->port_number;
- tmp.baud_base = tty_get_baud_rate(port->port.tty);
- tmp.close_delay = port->port.close_delay / 10;
- tmp.closing_wait = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+ ss->line = port->minor;
+ ss->port = port->port_number;
+ ss->baud_base = tty_get_baud_rate(port->port.tty);
+ ss->close_delay = port->port.close_delay / 10;
+ ss->closing_wait = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE :
port->port.closing_wait / 10;
-
- if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
- return -EFAULT;
return 0;
}
+EXPORT_SYMBOL(usb_wwan_get_serial_info);
-static int set_serial_info(struct usb_serial_port *port,
- struct serial_struct __user *newinfo)
+int usb_wwan_set_serial_info(struct tty_struct *tty,
+ struct serial_struct *ss)
{
- struct serial_struct new_serial;
+ struct usb_serial_port *port = tty->driver_data;
unsigned int closing_wait, close_delay;
int retval = 0;
- if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
- return -EFAULT;
-
- close_delay = new_serial.close_delay * 10;
- closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
- ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10;
+ close_delay = ss->close_delay * 10;
+ closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+ ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10;
mutex_lock(&port->port.mutex);
@@ -181,30 +175,7 @@
mutex_unlock(&port->port.mutex);
return retval;
}
-
-int usb_wwan_ioctl(struct tty_struct *tty,
- unsigned int cmd, unsigned long arg)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
-
- switch (cmd) {
- case TIOCGSERIAL:
- return get_serial_info(port,
- (struct serial_struct __user *) arg);
- case TIOCSSERIAL:
- return set_serial_info(port,
- (struct serial_struct __user *) arg);
- default:
- break;
- }
-
- dev_dbg(&port->dev, "%s arg not supported\n", __func__);
-
- return -ENOIOCTLCMD;
-}
-EXPORT_SYMBOL(usb_wwan_ioctl);
+EXPORT_SYMBOL(usb_wwan_set_serial_info);
int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)