linux-kernel - [PATCH 3.2 058/140] usbip: vhci: stop printing kernel pointer addresses in messages

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Date:   Wed, 28 Feb 2018 15:20:21 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Shuah Khan" <shuahkh@....samsung.com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: [PATCH 3.2 058/140] usbip: vhci: stop printing kernel pointer
 addresses in messages

3.2.100-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Shuah Khan <shuahkh@....samsung.com>

commit 8272d099d05f7ab2776cf56a2ab9f9443be18907 upstream.

Remove and/or change debug, info. and error messages to not print
kernel pointer addresses.

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[bwh: Backported to 3.2: adjust filenames, context, indentation]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/staging/usbip/vhci_hcd.c | 10 ----------
 drivers/staging/usbip/vhci_rx.c  | 23 +++++++++++------------
 drivers/staging/usbip/vhci_tx.c  |  3 ++-
 3 files changed, 13 insertions(+), 23 deletions(-)

--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -516,9 +516,6 @@ static int vhci_urb_enqueue(struct usb_h
 	unsigned long flags;
 	struct vhci_device *vdev;
 
-	usbip_dbg_vhci_hc("enter, usb_hcd %p urb %p mem_flags %d\n",
-			  hcd, urb, mem_flags);
-
 	/* patch to usb_sg_init() is in 2.5.60 */
 	BUG_ON(!urb->transfer_buffer && urb->transfer_buffer_length);
 
@@ -677,8 +674,6 @@ static int vhci_urb_dequeue(struct usb_h
 	struct vhci_priv *priv;
 	struct vhci_device *vdev;
 
-	pr_info("dequeue a urb %p\n", urb);
-
 	spin_lock_irqsave(&the_controller->lock, flags);
 
 	priv = urb->hcpriv;
@@ -707,7 +702,6 @@ static int vhci_urb_dequeue(struct usb_h
 
 		spin_lock_irqsave(&vdev->priv_lock, flags2);
 
-		pr_info("device %p seems to be disconnected\n", vdev);
 		list_del(&priv->list);
 		kfree(priv);
 		urb->hcpriv = NULL;
@@ -719,8 +713,6 @@ static int vhci_urb_dequeue(struct usb_h
 		 * vhci_rx will receive RET_UNLINK and give back the URB.
 		 * Otherwise, we give back it here.
 		 */
-		pr_info("gives back urb %p\n", urb);
-
 		usb_hcd_unlink_urb_from_ep(hcd, urb);
 
 		spin_unlock_irqrestore(&the_controller->lock, flags);
@@ -751,8 +743,6 @@ static int vhci_urb_dequeue(struct usb_h
 
 		unlink->unlink_seqnum = priv->seqnum;
 
-		pr_info("device %p seems to be still connected\n", vdev);
-
 		/* send cmd_unlink and try to cancel the pending URB in the
 		 * peer */
 		list_add_tail(&unlink->list, &vdev->unlink_tx);
--- a/drivers/staging/usbip/vhci_rx.c
+++ b/drivers/staging/usbip/vhci_rx.c
@@ -35,21 +35,19 @@ struct urb *pickup_urb_and_free_priv(str
 			urb = priv->urb;
 			status = urb->status;
 
-			usbip_dbg_vhci_rx("find urb %p vurb %p seqnum %u\n",
-					  urb, priv, seqnum);
+			usbip_dbg_vhci_rx("find urb seqnum %u\n", seqnum);
 
 			/* TODO: fix logic here to improve indent situtation */
 			if (status != -EINPROGRESS) {
 				if (status == -ENOENT ||
 				    status == -ECONNRESET)
-					dev_info(&urb->dev->dev,
-						 "urb %p was unlinked "
-						 "%ssynchronuously.\n", urb,
-						 status == -ENOENT ? "" : "a");
+					dev_dbg(&urb->dev->dev,
+						"urb seq# %u was unlinked %ssynchronuously\n",
+						seqnum, status == -ENOENT ? "" : "a");
 				else
-					dev_info(&urb->dev->dev,
-						 "urb %p may be in a error, "
-						 "status %d\n", urb, status);
+					dev_dbg(&urb->dev->dev,
+						"urb seq# %u may be in a error, status %d\n",
+						seqnum, status);
 			}
 
 			list_del(&priv->list);
@@ -75,8 +73,8 @@ static void vhci_recv_ret_submit(struct
 	spin_unlock(&vdev->priv_lock);
 
 	if (!urb) {
-		pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
-		pr_info("max seqnum %d\n",
+		pr_err("cannot find a urb of seqnum %u max seqnum %d\n",
+			pdu->base.seqnum,
 			atomic_read(&the_controller->seqnum));
 		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
 		return;
@@ -99,7 +97,7 @@ static void vhci_recv_ret_submit(struct
 	if (usbip_dbg_flag_vhci_rx)
 		usbip_dump_urb(urb);
 
-	usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+	usbip_dbg_vhci_rx("now giveback urb %u\n", pdu->base.seqnum);
 
 	spin_lock_irqsave(&the_controller->lock, flags);
 	usb_hcd_unlink_urb_from_ep(vhci_to_hcd(the_controller), urb);
@@ -165,7 +163,7 @@ static void vhci_recv_ret_unlink(struct
 		pr_info("the urb (seqnum %d) was already given backed\n",
 			pdu->base.seqnum);
 	} else {
-		usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+		usbip_dbg_vhci_rx("now giveback urb %d\n", pdu->base.seqnum);
 
 		/* If unlink is succeed, status is -ECONNRESET */
 		urb->status = pdu->u.ret_unlink.status;
--- a/drivers/staging/usbip/vhci_tx.c
+++ b/drivers/staging/usbip/vhci_tx.c
@@ -83,7 +83,8 @@ static int vhci_send_cmd_submit(struct v
 		memset(&msg, 0, sizeof(msg));
 		memset(&iov, 0, sizeof(iov));
 
-		usbip_dbg_vhci_tx("setup txdata urb %p\n", urb);
+		usbip_dbg_vhci_tx("setup txdata urb seqnum %lu\n",
+				  priv->seqnum);
 
 		/* 1. setup usbip_header */
 		setup_cmd_submit_pdu(&pdu_header, urb);