USB: serial: remove debug parameter from usb_serial_debug_data()

We should use dev_dbg() for usb_serial_debug_data() like all of the rest
of the usb-serial drivers use, so remove the debug parameter as it's not
needed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

24 files changed, 61 insertions, 89 deletions

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index f8ce97d8b0ad..07956e4f494f 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -650,8 +650,7 @@ static void ark3116_read_int_callback(struct urb *urb)
 		/*
 		 * Not sure what this data meant...
 		 */
-		usb_serial_debug_data(debug, &port->dev,
-				      __func__,
+		usb_serial_debug_data(&port->dev, __func__,
 				      urb->actual_length,
 				      urb->transfer_buffer);
 		break;
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 6b7365632951..1eff29eae9e8 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -206,8 +206,7 @@ static void belkin_sa_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	/* Handle known interrupt data */
 	/* ignore data[0] and data[1] */
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 9aae210c378f..b07009b6f4e1 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -463,7 +463,7 @@ static void ch341_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	if (actual_length >= 4) {
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 9c90575cf354..17066daeae46 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -222,8 +222,7 @@ static int cyberjack_write(struct tty_struct *tty,
 	/* Copy data */
 	memcpy(priv->wrbuf + priv->wrfilled, buf, count);
 
-	usb_serial_debug_data(debug, dev, __func__, count,
-		priv->wrbuf + priv->wrfilled);
+	usb_serial_debug_data(dev, __func__, count, priv->wrbuf + priv->wrfilled);
 	priv->wrfilled += count;
 
 	if (priv->wrfilled >= 3) {
@@ -295,7 +294,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 	if (status)
 		return;
 
-	usb_serial_debug_data(debug, dev, __func__, urb->actual_length, data);
+	usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 
 	/* React only to interrupts signaling a bulk_in transfer */
 	if (urb->actual_length == 4 && data[0] == 0x01) {
@@ -348,8 +347,7 @@ static void cyberjack_read_bulk_callback(struct urb *urb)
 	int result;
 	int status = urb->status;
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 	if (status) {
 		dev_dbg(dev, "%s - nonzero read bulk status received: %d\n",
 			__func__, status);
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 872a45dbcfd0..19f22e968d13 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -769,9 +769,8 @@ send:
 		actual_size = count +
 			      (priv->pkt_fmt == packet_format_1 ? 2 : 1);
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-		port->interrupt_out_size,
-		port->interrupt_out_urb->transfer_buffer);
+	usb_serial_debug_data(dev, __func__, port->interrupt_out_size,
+			      port->interrupt_out_urb->transfer_buffer);
 
 	usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
@@ -1187,8 +1186,7 @@ static void cypress_read_int_callback(struct urb *urb)
 		goto continue_read;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	/* check to see if status has changed */
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 499b15fd82f1..9413688613fc 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -85,7 +85,7 @@ static void f81232_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	f81232_update_line_status(port, data, actual_length);
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 11029dfe48ce..0e406102757b 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -258,10 +258,7 @@ static void send_to_tty(struct usb_serial_port *port,
 	struct tty_struct *tty = tty_port_tty_get(&port->port);
 
 	if (tty && actual_length) {
-
-		usb_serial_debug_data(debug, &port->dev,
-					__func__, actual_length, data);
-
+		usb_serial_debug_data(&port->dev, __func__, actual_length, data);
 		tty_insert_flip_string(tty, data, actual_length);
 		tty_flip_buffer_push(tty);
 	}
@@ -410,8 +407,8 @@ static int gsp_rec_packet(struct garmin_data *garmin_data_p, int count)
 	int pktid = recpkt[0];
 	int size = recpkt[1];
 
-	usb_serial_debug_data(debug, &garmin_data_p->port->dev,
-			       __func__, count-GSP_INITIAL_OFFSET, recpkt);
+	usb_serial_debug_data(&garmin_data_p->port->dev, __func__,
+			      count-GSP_INITIAL_OFFSET, recpkt);
 
 	if (size != (count-GSP_INITIAL_OFFSET-3)) {
 		dev_dbg(dev, "%s - invalid size, expected %d bytes, got %d\n",
@@ -642,8 +639,8 @@ static int gsp_send(struct garmin_data *garmin_data_p,
 
 	/* garmin_data_p->outbuffer now contains a complete packet */
 
-	usb_serial_debug_data(debug, &garmin_data_p->port->dev,
-				__func__, k, garmin_data_p->outbuffer);
+	usb_serial_debug_data(&garmin_data_p->port->dev, __func__, k,
+			      garmin_data_p->outbuffer);
 
 	garmin_data_p->outsize = 0;
 
@@ -1038,7 +1035,7 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 
 	memcpy(buffer, buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,
 				usb_sndbulkpipe(serial->dev,
@@ -1084,7 +1081,7 @@ static int garmin_write(struct tty_struct *tty, struct usb_serial_port *port,
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 	__le32 *privpkt = (__le32 *)garmin_data_p->privpkt;
 
-	usb_serial_debug_data(debug, dev, __func__, count, buf);
+	usb_serial_debug_data(dev, __func__, count, buf);
 
 	if (garmin_data_p->state == STATE_RESET)
 		return -EIO;
@@ -1225,8 +1222,7 @@ static void garmin_read_bulk_callback(struct urb *urb)
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev,
-				__func__, urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	garmin_read_process(garmin_data_p, data, urb->actual_length, 1);
 
@@ -1284,8 +1280,8 @@ static void garmin_read_int_callback(struct urb *urb)
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-				urb->actual_length, urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
+			      urb->transfer_buffer);
 
 	if (urb->actual_length == sizeof(GARMIN_BULK_IN_AVAIL_REPLY) &&
 	    0 == memcmp(data, GARMIN_BULK_IN_AVAIL_REPLY,
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 9b026bf7afef..47e228030922 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -171,8 +171,7 @@ retry:
 						urb->transfer_buffer,
 						port->bulk_out_size);
 	urb->transfer_buffer_length = count;
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-						urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, urb->transfer_buffer);
 	spin_lock_irqsave(&port->lock, flags);
 	port->tx_bytes += count;
 	spin_unlock_irqrestore(&port->lock, flags);
@@ -365,8 +364,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 	port->serial->type->process_read_urb(urb);
 
 	/* Throttle the device if requested by tty */
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 1a826973017b..06159fd03777 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -599,7 +599,7 @@ static void edge_interrupt_callback(struct urb *urb)
 
 	/* process this interrupt-read even if there are no ports open */
 	if (length) {
-		usb_serial_debug_data(debug, dev, __func__, length, data);
+		usb_serial_debug_data(dev, __func__, length, data);
 
 		if (length > 1) {
 			bytes_avail = data[0] | (data[1] << 8);
@@ -705,7 +705,7 @@ static void edge_bulk_in_callback(struct urb *urb)
 	dev = &edge_serial->serial->dev->dev;
 	raw_data_length = urb->actual_length;
 
-	usb_serial_debug_data(debug, dev, __func__, raw_data_length, data);
+	usb_serial_debug_data(dev, __func__, raw_data_length, data);
 
 	spin_lock(&edge_serial->es_lock);
 
@@ -1178,8 +1178,7 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	/* now copy our data */
 	memcpy(&fifo->fifo[fifo->head], data, firsthalf);
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					firsthalf, &fifo->fifo[fifo->head]);
+	usb_serial_debug_data(&port->dev, __func__, firsthalf, &fifo->fifo[fifo->head]);
 
 	/* update the index and size */
 	fifo->head  += firsthalf;
@@ -1194,8 +1193,7 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	if (secondhalf) {
 		dev_dbg(&port->dev, "%s - copy rest of data %d\n", __func__, secondhalf);
 		memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf);
-		usb_serial_debug_data(debug, &port->dev, __func__,
-					secondhalf, &fifo->fifo[fifo->head]);
+		usb_serial_debug_data(&port->dev, __func__, secondhalf, &fifo->fifo[fifo->head]);
 		/* update the index and size */
 		fifo->count += secondhalf;
 		fifo->head  += secondhalf;
@@ -1312,8 +1310,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	}
 
 	if (count)
-		usb_serial_debug_data(debug, &edge_port->port->dev,
-						__func__, count, &buffer[2]);
+		usb_serial_debug_data(&edge_port->port->dev, __func__, count, &buffer[2]);
 
 	/* fill up the urb with all of our data and submit it */
 	usb_fill_bulk_urb(urb, edge_serial->serial->dev,
@@ -2305,7 +2302,7 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
 	int status = 0;
 	struct urb *urb;
 
-	usb_serial_debug_data(debug, dev, __func__, length, buffer);
+	usb_serial_debug_data(dev, __func__, length, buffer);
 
 	/* Allocate our next urb */
 	urb = usb_alloc_urb(0, GFP_ATOMIC);
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 54916d724145..c6b82833a157 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -321,8 +321,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
 		}
 
 		if (read_length > 1)
-			usb_serial_debug_data(debug, &dev->dev, __func__,
-					      read_length, buffer);
+			usb_serial_debug_data(&dev->dev, __func__, read_length, buffer);
 
 		/* Update pointers/length */
 		start_address += read_length;
@@ -359,8 +358,7 @@ static int read_boot_mem(struct edgeport_serial *serial,
 
 	dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n",
 		__func__, start_address, length);
-	usb_serial_debug_data(debug, &serial->serial->dev->dev,
-					__func__, length, buffer);
+	usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
 
 	serial->TiReadI2C = 1;
 
@@ -398,8 +396,7 @@ static int write_boot_mem(struct edgeport_serial *serial,
 	}
 
 	dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length);
-	usb_serial_debug_data(debug, &serial->serial->dev->dev,
-					__func__, length, buffer);
+	usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
 
 	return status;
 }
@@ -425,7 +422,7 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 
 	dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n",
 		__func__, start_address, write_length);
-	usb_serial_debug_data(debug, dev, __func__, write_length, buffer);
+	usb_serial_debug_data(dev, __func__, write_length, buffer);
 
 	/* Write first page */
 	be_start_address = cpu_to_be16(start_address);
@@ -452,7 +449,7 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 
 		dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n",
 			__func__, start_address, write_length);
-		usb_serial_debug_data(debug, dev, __func__, write_length, buffer);
+		usb_serial_debug_data(dev, __func__, write_length, buffer);
 
 		/* Write next page */
 		be_start_address = cpu_to_be16(start_address);
@@ -1622,7 +1619,7 @@ static void edge_interrupt_callback(struct urb *urb)
 	}
 
 	dev = &edge_serial->serial->dev->dev;
-	usb_serial_debug_data(debug, dev, __func__, length, data);
+	usb_serial_debug_data(dev, __func__, length, data);
 
 	if (length != 2) {
 		dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length);
@@ -1726,7 +1723,7 @@ static void edge_bulk_in_callback(struct urb *urb)
 
 	tty = tty_port_tty_get(&edge_port->port->port);
 	if (tty && urb->actual_length) {
-		usb_serial_debug_data(debug, dev, __func__, urb->actual_length, data);
+		usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 		if (edge_port->close_pending)
 			dev_dbg(dev, "%s - close pending, dropping data on the floor\n",
 								__func__);
@@ -2059,8 +2056,7 @@ static void edge_send(struct tty_struct *tty)
 
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-				port->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer);
 
 	/* set up our urb */
 	port->write_urb->transfer_buffer_length = count;
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index a2f72308050b..33d7e18fb012 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -392,8 +392,7 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	/* Copy data to buffer */
 	memcpy(priv->buf + priv->filled, buf, count);
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-						priv->buf + priv->filled);
+	usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
 	priv->filled = priv->filled + count;
 
 	/* only send complete block. TWIN, KAAN SIM and adapter K
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index ab8f9ff75abd..ef773babc37c 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -553,8 +553,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	/*
 	 * Work-a-round: handle the 'usual' bulk-in pipe here
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 192191ca1d37..049bf6fa283c 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1266,7 +1266,7 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
 	transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
 
 	memcpy(urb->transfer_buffer, current_position, transfer_size);
-	usb_serial_debug_data(debug, &port->dev, __func__, transfer_size,
+	usb_serial_debug_data(&port->dev, __func__, transfer_size,
 			      urb->transfer_buffer);
 
 	/* fill urb with data and submit  */
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index ffbe4eed2057..a4880d6198cc 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -796,7 +796,7 @@ static void mos7840_bulk_in_callback(struct urb *urb)
 	}
 
 	data = urb->transfer_buffer;
-	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length) {
 		tty = tty_port_tty_get(&mos7840_port->port->port);
diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index d95452cc076d..e0b4d4f4a781 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -55,8 +55,7 @@ static void navman_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-			      urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	tty = tty_port_tty_get(&port->port);
 	if (tty && urb->actual_length) {
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index f524cd910e2c..7e81ed0c79ca 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -228,8 +228,8 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
 	memcpy(wport->write_urb->transfer_buffer + OMNINET_DATAOFFSET,
 								buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-					wport->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count,
+			      wport->write_urb->transfer_buffer);
 
 	header->oh_seq 	= od->od_outseq++;
 	header->oh_len 	= count;
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 6f05d642362f..d7507726744d 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -87,8 +87,7 @@ static void opticon_read_bulk_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length,
-			      data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length > 2) {
 		data_length = urb->actual_length - 2;
@@ -276,7 +275,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	memcpy(buffer, buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	/* The conncected devices do not have a bulk write endpoint,
 	 * to transmit data to de barcode device the control endpoint is used */
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 13b8dd6481f5..5eccbe5b81b5 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -741,7 +741,7 @@ static void pl2303_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	pl2303_update_line_status(port, data, actual_length);
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 0274710cced5..400bb131fb97 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -518,7 +518,7 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	memcpy(buffer, buf, writesize);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
+	usb_serial_debug_data(&port->dev, __func__, writesize, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,
 			  usb_sndbulkpipe(serial->dev,
@@ -595,8 +595,8 @@ static void sierra_indat_callback(struct urb *urb)
 				tty_flip_buffer_push(tty);
 
 				tty_kref_put(tty);
-				usb_serial_debug_data(debug, &port->dev,
-					__func__, urb->actual_length, data);
+				usb_serial_debug_data(&port->dev, __func__,
+						      urb->actual_length, data);
 			}
 		} else {
 			dev_dbg(&port->dev, "%s: empty read urb"
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index e53d2aac35c5..d0f1c21dd91c 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -71,8 +71,7 @@ static void symbol_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length,
-			      data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length > 1) {
 		data_length = urb->actual_length - 1;
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 0b113fa48eed..5dbb74107671 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1161,8 +1161,8 @@ static void ti_bulk_in_callback(struct urb *urb)
 	tty = tty_port_tty_get(&port->port);
 	if (tty) {
 		if (urb->actual_length) {
-			usb_serial_debug_data(debug, dev, __func__,
-				urb->actual_length, urb->transfer_buffer);
+			usb_serial_debug_data(dev, __func__, urb->actual_length,
+					      urb->transfer_buffer);
 
 			if (!tport->tp_is_open)
 				dev_dbg(dev, "%s - port closed, dropping data\n",
@@ -1267,8 +1267,8 @@ static void ti_send(struct ti_port *tport)
 
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-					port->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count,
+			      port->write_urb->transfer_buffer);
 
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 			   usb_sndbulkpipe(port->serial->dev,
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index f253c91383da..97fe0059ed8b 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -310,8 +310,8 @@ static void visor_read_int_callback(struct urb *urb)
 	 * Rumor has it this endpoint is used to notify when data
 	 * is ready to be read from the bulk ones.
 	 */
-	usb_serial_debug_data(debug, &port->dev, __func__,
-			      urb->actual_length, urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
+			      urb->transfer_buffer);
 
 exit:
 	result = usb_submit_urb(urb, GFP_ATOMIC);
@@ -443,8 +443,7 @@ static int palm_os_4_probe(struct usb_serial *serial,
 		dev_err(dev, "%s - error %d getting connection info\n",
 			__func__, retval);
 	else
-		usb_serial_debug_data(debug, &serial->dev->dev, __func__,
-				      retval, transfer_buffer);
+		usb_serial_debug_data(dev, __func__, retval, transfer_buffer);
 
 	kfree(transfer_buffer);
 	return 0;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index d9456b4e5d6e..64d3840673aa 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -607,8 +607,7 @@ static void command_port_read_callback(struct urb *urb)
 		return;
 	}
 
-	usb_serial_debug_data(debug, &command_port->dev,
-				__func__, urb->actual_length, data);
+	usb_serial_debug_data(&command_port->dev, __func__, urb->actual_length, data);
 
 	if (data[0] == WHITEHEAT_CMD_COMPLETE) {
 		command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index e71bc5ef234a..b2b6d159b26b 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -355,14 +355,12 @@ extern struct usb_serial_driver usb_serial_generic_device;
 extern struct bus_type usb_serial_bus_type;
 extern struct tty_driver *usb_serial_tty_driver;
 
-static inline void usb_serial_debug_data(int debug,
-					 struct device *dev,
+static inline void usb_serial_debug_data(struct device *dev,
 					 const char *function, int size,
 					 const unsigned char *data)
 {
-	if (debug)
-		dev_printk(KERN_DEBUG, dev, "%s - length = %d, data = %*ph\n",
-			   function, size, size, data);
+	dev_dbg(dev, "%s - length = %d, data = %*ph\n",
+		function, size, size, data);
 }
 
 /*