export usbnet_get_ethernet_addr from usbnet and fixed cdc_ether.c

because of using the same function get_ethernet_addr as cdc_ether.c
i export usbnet_get_ethernet_addr from usbnet and fixed cdc_ether
(suggested by Oliver Neukum).

Signed-off-by: Peter Holik <peter@holik.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 2b8b9036aff..c94de624314 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -37,6 +37,7 @@
 #include <linux/init.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
+#include <linux/ctype.h>
 #include <linux/ethtool.h>
 #include <linux/workqueue.h>
 #include <linux/mii.h>
@@ -156,6 +157,36 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
 }
 EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
 
+static u8 nibble(unsigned char c)
+{
+	if (likely(isdigit(c)))
+		return c - '0';
+	c = toupper(c);
+	if (likely(isxdigit(c)))
+		return 10 + c - 'A';
+	return 0;
+}
+
+int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress)
+{
+	int 		tmp, i;
+	unsigned char	buf [13];
+
+	tmp = usb_string(dev->udev, iMACAddress, buf, sizeof buf);
+	if (tmp != 12) {
+		dev_dbg(&dev->udev->dev,
+			"bad MAC string %d fetch, %d\n", iMACAddress, tmp);
+		if (tmp >= 0)
+			tmp = -EINVAL;
+		return tmp;
+	}
+	for (i = tmp = 0; i < 6; i++, tmp += 2)
+		dev->net->dev_addr [i] =
+			(nibble(buf [tmp]) << 4) + nibble(buf [tmp + 1]);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
+
 static void intr_complete (struct urb *urb);
 
 static int init_status (struct usbnet *dev, struct usb_interface *intf)