stmmac: remove custom implementation of print_hex_dump()

There is a kernel helper to dump buffers in a hexdecimal format. This patch
substitutes the open coded function by calling that helper.

The output is slightly changed:
 - no lead space
 - ASCII part will be printed along with the dump
 - offset is longer than 3 characters (now 8)

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 8 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index fa598b97d710..53db11b29e61 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -191,14 +191,8 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
 
 static void print_pkt(unsigned char *buf, int len)
 {
-        int j;
-        pr_debug("len = %d byte, buf addr: 0x%p", len, buf);
-        for (j = 0; j < len; j++) {
-                if ((j % 16) == 0)
-                        pr_debug("\n %03x:", j);
-                pr_debug(" %02x", buf[j]);
-        }
-        pr_debug("\n");
+        pr_debug("len = %d byte, buf addr: 0x%p\n", len, buf);
+        print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len);
 }
 
 /* minimum number of free TX descriptors required to wake up TX process */