asix: fix setting custom MAC address on Asix 88178 devices

commit 71bc5d94061516c4e70303570128797bcf768b10 upstream.

In kernel v3.2 initialization sequence for Asix 88178 devices was changed so
that hardware is reseted on every time interface is brought up (ifconfig up),
instead just at USB probe time. This causes problem with setting custom MAC
address to device as ax88178_reset causes reload of MAC address from EEPROM.

This patch fixes the issue by rewriting MAC address at end of ax88178_reset.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Grant Grundler <grundler@chromium.org>
Cc: Allan Chou <allan@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index dd2625a3371a40cbadb898d9bc63f5f6f7c00cd9..b4958216518f7bd87553f5d9bc81e06f090cda7d 100644 (file)
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -1316,6 +1316,13 @@ static int ax88178_reset(struct usbnet *dev)
        if (ret < 0)
                return ret;
 
+       /* Rewrite MAC address */
+       memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
+       ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
+                                                       data->mac_addr);
+       if (ret < 0)
+               return ret;
+
        ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL);
        if (ret < 0)
                return ret;