5 files changed, 93 insertions, 17 deletions

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 93044cf1417a..950711448f39 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -31,6 +31,7 @@
 #define AX_ACCESS_PHY				0x02
 #define AX_ACCESS_EEPROM			0x04
 #define AX_ACCESS_EFUS				0x05
+#define AX_RELOAD_EEPROM_EFUSE			0x06
 #define AX_PAUSE_WATERLVL_HIGH			0x54
 #define AX_PAUSE_WATERLVL_LOW			0x55
 
@@ -611,6 +612,81 @@ ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
 	return 0;
 }
 
+static int
+ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
+		   u8 *data)
+{
+	struct usbnet *dev = netdev_priv(net);
+	u16 *eeprom_buff;
+	int first_word;
+	int last_word;
+	int ret;
+	int i;
+
+	netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
+		   eeprom->len, eeprom->offset, eeprom->magic);
+
+	if (eeprom->len == 0)
+		return -EINVAL;
+
+	if (eeprom->magic != AX88179_EEPROM_MAGIC)
+		return -EINVAL;
+
+	first_word = eeprom->offset >> 1;
+	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
+				    GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	/* align data to 16 bit boundaries, read the missing data from
+	   the EEPROM */
+	if (eeprom->offset & 1) {
+		ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
+				       &eeprom_buff[0]);
+		if (ret < 0) {
+			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
+			goto free;
+		}
+	}
+
+	if ((eeprom->offset + eeprom->len) & 1) {
+		ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
+				       &eeprom_buff[last_word - first_word]);
+		if (ret < 0) {
+			netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
+			goto free;
+		}
+	}
+
+	memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
+
+	for (i = first_word; i <= last_word; i++) {
+		netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
+			   i, eeprom_buff[i - first_word]);
+		ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
+					&eeprom_buff[i - first_word]);
+		if (ret < 0) {
+			netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
+			goto free;
+		}
+		msleep(20);
+	}
+
+	/* reload EEPROM data */
+	ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
+	if (ret < 0) {
+		netdev_err(net, "Failed to reload EEPROM data\n");
+		goto free;
+	}
+
+	ret = 0;
+free:
+	kfree(eeprom_buff);
+	return ret;
+}
+
 static int ax88179_get_link_ksettings(struct net_device *net,
 				      struct ethtool_link_ksettings *cmd)
 {
@@ -784,7 +860,7 @@ static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
 {
 	struct usbnet *dev = netdev_priv(net);
 	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
-	int ret = -EOPNOTSUPP;
+	int ret;
 
 	priv->eee_enabled = edata->eee_enabled;
 	if (!priv->eee_enabled) {
@@ -822,6 +898,7 @@ static const struct ethtool_ops ax88179_ethtool_ops = {
 	.set_wol		= ax88179_set_wol,
 	.get_eeprom_len		= ax88179_get_eeprom_len,
 	.get_eeprom		= ax88179_get_eeprom,
+	.set_eeprom		= ax88179_set_eeprom,
 	.get_eee		= ax88179_get_eee,
 	.set_eee		= ax88179_set_eee,
 	.nway_reset		= usbnet_nway_reset,
diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c
index 099d84827004..a87f0dabcdb7 100644
--- a/drivers/net/usb/huawei_cdc_ncm.c
+++ b/drivers/net/usb/huawei_cdc_ncm.c
@@ -67,7 +67,7 @@ static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev,
 {
 	struct cdc_ncm_ctx *ctx;
 	struct usb_driver *subdriver = ERR_PTR(-ENODEV);
-	int ret = -ENODEV;
+	int ret;
 	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
 	int drvflags = 0;
 
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 4a2c7355be63..31b1d4b959f6 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -719,7 +719,7 @@ static int qmi_wwan_change_dtr(struct usbnet *dev, bool on)
 
 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 {
-	int status = -1;
+	int status;
 	u8 *buf = intf->cur_altsetting->extra;
 	int len = intf->cur_altsetting->extralen;
 	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index c8c873a613b6..7d39f998535d 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1504,15 +1504,19 @@ static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa)
 
 	sa->sa_family = dev->type;
 
-	if (tp->version == RTL_VER_01) {
-		ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data);
-	} else {
-		/* if device doesn't support MAC pass through this will
-		 * be expected to be non-zero
-		 */
-		ret = vendor_mac_passthru_addr_read(tp, sa);
-		if (ret < 0)
-			ret = pla_ocp_read(tp, PLA_BACKUP, 8, sa->sa_data);
+	ret = eth_platform_get_mac_address(&dev->dev, sa->sa_data);
+	if (ret < 0) {
+		if (tp->version == RTL_VER_01) {
+			ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data);
+		} else {
+			/* if device doesn't support MAC pass through this will
+			 * be expected to be non-zero
+			 */
+			ret = vendor_mac_passthru_addr_read(tp, sa);
+			if (ret < 0)
+				ret = pla_ocp_read(tp, PLA_BACKUP, 8,
+						   sa->sa_data);
+		}
 	}
 
 	if (ret < 0) {
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index 389d19dd7909..0abd257b634c 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -354,11 +354,6 @@ static void sierra_net_set_ctx_index(struct sierra_net_data *priv, u8 ctx_ix)
 		cpu_to_be16(SIERRA_NET_HIP_EXT_IP_OUT_ID);
 }
 
-static inline int sierra_net_is_valid_addrlen(u8 len)
-{
-	return len == sizeof(struct in_addr);
-}
-
 static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
 {
 	struct lsi_umts *lsi = (struct lsi_umts *)data;