mwifiex: dump small buffers with help of %*ph

Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/join.c

@@ -919,9 +919,8 @@ mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
 	memcpy(&priv->curr_bss_params.data_rates,
 	       &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
 
-	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
-		adhoc_start->data_rate[0], adhoc_start->data_rate[1],
-		adhoc_start->data_rate[2], adhoc_start->data_rate[3]);
+	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%4ph\n",
+		adhoc_start->data_rate);
 
 	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");