USB: serial: remove unnecessary bulk-urb re-fills

Remove unnecessary re-fills of bulk urbs whose fields have not changed
since port probe.

Compile-only tested.

Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 3 insertions, 40 deletions

diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 2b220e811bf..98bf8334983 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -207,7 +207,6 @@ static void cyberjack_close(struct usb_serial_port *port)
 static int cyberjack_write(struct tty_struct *tty,
         struct usb_serial_port *port, const unsigned char *buf, int count)
 {
-        struct usb_serial *serial = port->serial;
         struct cyberjack_private *priv = usb_get_serial_port_data(port);
         unsigned long flags;
         int result;
@@ -260,13 +259,7 @@ static int cyberjack_write(struct tty_struct *tty,
                 priv->wrsent = length;
 
                 /* set up our urb */
-                usb_fill_bulk_urb(port->write_urb, serial->dev,
-                              usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
-                              port->write_urb->transfer_buffer, length,
-                              ((serial->type->write_bulk_callback) ?
-                               serial->type->write_bulk_callback :
-                               cyberjack_write_bulk_callback),
-                              port);
+                port->write_urb->transfer_buffer_length = length;
 
                 /* send the data out the bulk port */
                 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
@@ -447,13 +440,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
                 priv->wrsent += length;
 
                 /* set up our urb */
-                usb_fill_bulk_urb(port->write_urb, port->serial->dev,
-                              usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
-                              port->write_urb->transfer_buffer, length,
-                              ((port->serial->type->write_bulk_callback) ?
-                               port->serial->type->write_bulk_callback :
-                               cyberjack_write_bulk_callback),
-                              port);
+                port->write_urb->transfer_buffer_length = length;
 
                 /* send the data out the bulk port */
                 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index d39da13d3db..bf12565f8e8 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1276,7 +1276,6 @@ static void garmin_read_int_callback(struct urb *urb)
         unsigned long flags;
         int retval;
         struct usb_serial_port *port = urb->context;
-        struct usb_serial *serial = port->serial;
         struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
         unsigned char *data = urb->transfer_buffer;
         int status = urb->status;
@@ -1310,12 +1309,6 @@ static void garmin_read_int_callback(struct urb *urb)
                 if (0 == (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) {
 
                         /* bulk data available */
-                        usb_fill_bulk_urb(port->read_urb, serial->dev,
-                                        usb_rcvbulkpipe(serial->dev,
-                                                port->bulk_in_endpointAddress),
-                                        port->read_urb->transfer_buffer,
-                                        port->read_urb->transfer_buffer_length,
-                                        garmin_read_bulk_callback, port);
                         retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
                         if (retval) {
                                 dev_err(&port->dev,
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 589f11a0f7e..e44d375edaa 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2106,12 +2106,7 @@ static void edge_send(struct tty_struct *tty)
                                 port->write_urb->transfer_buffer);
 
         /* set up our urb */
-        usb_fill_bulk_urb(port->write_urb, port->serial->dev,
-                           usb_sndbulkpipe(port->serial->dev,
-                                            port->bulk_out_endpointAddress),
-                           port->write_urb->transfer_buffer, count,
-                           edge_bulk_out_callback,
-                           port);
+        port->write_urb->transfer_buffer_length = count;
 
         /* send the data out the bulk port */
         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index f3824641099..45a8c55881d 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -148,13 +148,6 @@ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port)
         tty_port_tty_set(&wport->port, tty);
 
         /* Start reading from the device */
-        usb_fill_bulk_urb(port->read_urb, serial->dev,
-                        usb_rcvbulkpipe(serial->dev,
-                                port->bulk_in_endpointAddress),
-                        port->read_urb->transfer_buffer,
-                        port->read_urb->transfer_buffer_length,
-                        omninet_read_bulk_callback, port);
-
         result = usb_submit_urb(port->read_urb, GFP_KERNEL);
         if (result)
                 dev_err(&port->dev,
@@ -211,11 +204,6 @@ static void omninet_read_bulk_callback(struct urb *urb)
         }
 
         /* Continue trying to always read  */
-        usb_fill_bulk_urb(urb, port->serial->dev,
-                        usb_rcvbulkpipe(port->serial->dev,
-                                        port->bulk_in_endpointAddress),
-                        urb->transfer_buffer, urb->transfer_buffer_length,
-                        omninet_read_bulk_callback, port);
         result = usb_submit_urb(urb, GFP_ATOMIC);
         if (result)
                 dev_err(&port->dev,