usb: isp1760: don't be noisy about short packets.

According to Alan Stern, short packets are quite normal under
certain circumstances. This printk was triggered by usb to
serial converters on every packet and some usb sticks triggered
a few of those while plugging the stick.
This printks are now hidden unless USB debug mode is activated.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 6 insertions, 3 deletions

diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index e209b3b709d6..d22a84f86a33 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1128,11 +1128,11 @@ static void do_atl_int(struct usb_hcd *usb_hcd)
                 } else if (usb_pipebulk(urb->pipe) && (length < qtd->length)) {
                         /* short BULK received */
 
-                        printk(KERN_ERR "short bulk, %d instead %zu\n", length,
-                                        qtd->length);
                         if (urb->transfer_flags & URB_SHORT_NOT_OK) {
                                 urb->status = -EREMOTEIO;
-                                printk(KERN_ERR "not okey\n");
+                                isp1760_dbg(priv, "short bulk, %d instead %zu "
+                                        "with URB_SHORT_NOT_OK flag.\n",
+                                        length, qtd->length);
                         }
 
                         if (urb->status == -EINPROGRESS)
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
index 3c61cd51cbb8..4377277667d9 100644
--- a/drivers/usb/host/isp1760-hcd.h
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -121,6 +121,9 @@ struct inter_packet_info {
 typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh,
                 struct isp1760_qtd *qtd);
 
+#define isp1760_dbg(priv, fmt, args...) \
+        dev_dbg(priv_to_hcd(priv)->self.controller, fmt, ##args)
+
 #define isp1760_info(priv, fmt, args...) \
         dev_info(priv_to_hcd(priv)->self.controller, fmt, ##args)