mwifiex: keep user configured mac address during changing virtual interface

During changing virtual interface, keep using previous net device
mac address.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/main.c

@@ -1333,7 +1333,10 @@ void mwifiex_init_priv_params(struct mwifiex_private *priv,
 	priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK;
 	priv->gen_idx = MWIFIEX_AUTO_IDX_MASK;
 	priv->num_tx_timeout = 0;
-	ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr);
+	if (is_valid_ether_addr(dev->dev_addr))
+		ether_addr_copy(priv->curr_addr, dev->dev_addr);
+	else
+		ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr);
 
 	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
 	    GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {