staging: rtl8188eu: Remove unused function nat25_handle_frame()
Signed-off-by: navin patidar <navin.patidar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1042,67 +1042,6 @@ int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method)
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return -1;
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}
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int nat25_handle_frame(struct adapter *priv, struct sk_buff *skb)
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{
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if (!(skb->data[0] & 1)) {
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int is_vlan_tag = 0, i, retval = 0;
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unsigned short vlan_hdr = 0;
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unsigned short protocol;
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protocol = be16_to_cpu(*((__be16 *)(skb->data + 2 * ETH_ALEN)));
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if (protocol == ETH_P_8021Q) {
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is_vlan_tag = 1;
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vlan_hdr = *((unsigned short *)(skb->data+ETH_ALEN*2+2));
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for (i = 0; i < 6; i++)
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*((unsigned short *)(skb->data+ETH_ALEN*2+2-i*2)) = *((unsigned short *)(skb->data+ETH_ALEN*2-2-i*2));
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skb_pull(skb, 4);
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}
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if (!priv->ethBrExtInfo.nat25_disable) {
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spin_lock_bh(&priv->br_ext_lock);
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/*
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* This function look up the destination network address from
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* the NAT2.5 database. Return value = -1 means that the
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* corresponding network protocol is NOT support.
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*/
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if (!priv->ethBrExtInfo.nat25sc_disable &&
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(be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_IP) &&
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!memcmp(priv->scdb_ip, skb->data+ETH_HLEN+16, 4)) {
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memcpy(skb->data, priv->scdb_mac, ETH_ALEN);
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spin_unlock_bh(&priv->br_ext_lock);
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} else {
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spin_unlock_bh(&priv->br_ext_lock);
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retval = nat25_db_handle(priv, skb, NAT25_LOOKUP);
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}
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} else {
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if (((be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_IP) &&
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!memcmp(priv->br_ip, skb->data+ETH_HLEN+16, 4)) ||
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((be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_ARP) &&
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!memcmp(priv->br_ip, skb->data+ETH_HLEN+24, 4))) {
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/* for traffic to upper TCP/IP */
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retval = nat25_db_handle(priv, skb, NAT25_LOOKUP);
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}
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}
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if (is_vlan_tag) {
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skb_push(skb, 4);
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for (i = 0; i < 6; i++)
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*((unsigned short *)(skb->data+i*2)) = *((unsigned short *)(skb->data+4+i*2));
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*((__be16 *)(skb->data+ETH_ALEN*2)) = __constant_htons(ETH_P_8021Q);
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*((unsigned short *)(skb->data+ETH_ALEN*2+2)) = vlan_hdr;
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}
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if (retval == -1) {
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/* DEBUG_ERR("NAT25: Lookup fail!\n"); */
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return -1;
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}
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}
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return 0;
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}
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#define SERVER_PORT 67
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#define CLIENT_PORT 68
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#define DHCP_MAGIC 0x63825363
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@ -46,7 +46,6 @@ int rtw_os_recvbuf_resource_alloc(struct adapter *adapt, struct recv_buf *buf);
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void rtw_os_read_port(struct adapter *padapter, struct recv_buf *precvbuf);
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void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl);
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int nat25_handle_frame(struct adapter *priv, struct sk_buff *skb);
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int _netdev_open(struct net_device *pnetdev);
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int netdev_open(struct net_device *pnetdev);
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int netdev_close(struct net_device *pnetdev);
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