asix: fix setting custom MAC address on Asix 88178 devices

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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 8414bdc212354f20c3913c6d94ec1b38a383243c..8e84f5bdd6ca581a3f6d26cfe9a06eb1b27771b2 100644 (file)
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -1328,6 +1328,13 @@ 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;