[PATCH v1] net: dwc-xlgmac: Get rid of custom hex_dump_to_buffer()

[Andy Shevchenko]

Get rid of yet another custom hex_dump_to_buffer().

The output is slightly changed, i.e. each byte followed by white space.

Note, we don't use print_hex_dump() here since the original code uses
nedev_dbg().

Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 drivers/net/ethernet/synopsys/dwc-xlgmac-common.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c 
b/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c
index d655a4261e98..6fbab6c30fd4 100644
--- a/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c
+++ b/drivers/net/ethernet/synopsys/dwc-xlgmac-common.c
@@ -333,9 +333,8 @@ void xlgmac_print_pkt(struct net_device *netdev,
                      struct sk_buff *skb, bool tx_rx)
 {
        struct ethhdr *eth = (struct ethhdr *)skb->data;
-       unsigned char *buf = skb->data;
        unsigned char buffer[128];
-       unsigned int i, j;
+       unsigned int i;
 
        netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 
@@ -346,22 +345,12 @@ void xlgmac_print_pkt(struct net_device *netdev,
        netdev_dbg(netdev, "Src MAC addr: %pM\n", eth->h_source);
        netdev_dbg(netdev, "Protocol: %#06hx\n", ntohs(eth->h_proto));
 
-       for (i = 0, j = 0; i < skb->len;) {
-               j += snprintf(buffer + j, sizeof(buffer) - j, "%02hhx",
-                             buf[i++]);
-
-               if ((i % 32) == 0) {
-                       netdev_dbg(netdev, "  %#06x: %s\n", i - 32, buffer);
-                       j = 0;
-               } else if ((i % 16) == 0) {
-                       buffer[j++] = ' ';
-                       buffer[j++] = ' ';
-               } else if ((i % 4) == 0) {
-                       buffer[j++] = ' ';
-               }
+       for (i = 0; i < skb->len; i += 32) {
+               unsigned int len = min(skb->len - i, 32U);
+
+               hex_dump_to_buffer(&skb->data[i], len, 32, 1, buffer, 128, 
false);
+               netdev_dbg(netdev, "  %#06x: %s\n", i, buffer);
        }
-       if (i % 32)
-               netdev_dbg(netdev, "  %#06x: %s\n", i - (i % 32), buffer);
 
        netdev_dbg(netdev, "\n************** SKB dump ****************\n");
 }
-- 
2.15.1