net: cdc_ncm: demote "unexpected notification" to debug level

Receiving unhandled notifications is most certainly not an error
and should not be logged as one.  Knowing that the device sends
notifications we don't handle is useful for developers, but there
is very little a user can do about this.  The message is therefore
just annoying noise to most users with devices sending unhandled
notifications like e.g. USB_CDC_NOTIFY_RESPONSE_AVAILABLE

Cc: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 44a989cd9fb2d718ab6822f75b4054c0ff2f4fd5..67012cbd55827fd4fd134ceb40b8497fdceca24a 100644 (file)
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1124,8 +1124,9 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
                break;
 
        default:
-               dev_err(&dev->udev->dev, "NCM: unexpected "
-                       "notification 0x%02x!\n", event->bNotificationType);
+               dev_dbg(&dev->udev->dev,
+                       "NCM: unexpected notification 0x%02x!\n",
+                       event->bNotificationType);
                break;
        }
 }