net: cdc_ncm: log signatures in hex

These signatures are well known bit patterns, mostly made up
of ascii characters.  Mentally parsing works best if they
are printed in hex.

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

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 73faf05209b3..d49e4c5b292a 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -883,8 +883,9 @@ int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
         nth16 = (struct usb_cdc_ncm_nth16 *)skb_in->data;
 
         if (le32_to_cpu(nth16->dwSignature) != USB_CDC_NCM_NTH16_SIGN) {
-                pr_debug("invalid NTH16 signature <%u>\n",
-                                        le32_to_cpu(nth16->dwSignature));
+                netif_dbg(dev, rx_err, dev->net,
+                          "invalid NTH16 signature <%#010x>\n",
+                          le32_to_cpu(nth16->dwSignature));
                 goto error;
         }
 
@@ -972,8 +973,9 @@ next_ndp:
         ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
 
         if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) {
-                pr_debug("invalid DPT16 signature <%u>\n",
-                         le32_to_cpu(ndp16->dwSignature));
+                netif_dbg(dev, rx_err, dev->net,
+                          "invalid DPT16 signature <%#010x>\n",
+                          le32_to_cpu(ndp16->dwSignature));
                 goto err_ndp;
         }
         dpe16 = ndp16->dpe16;