diff options
| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2021-08-16 18:06:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-16 18:48:15 +0200 |
| commit | 9caf92ab573fd83c7455b65d4eefcefc1a9d2188 (patch) | |
| tree | afd4d97892596e1290f983a46fdf7f8af925356e /drivers/staging/r8188eu/core/rtw_br_ext.c | |
| parent | ff63261978ee1f00758f447d63276a6f180a81dc (diff) | |
staging: r8188eu: Remove unused nat25_handle_frame()
Remove nat25_handle_frame() because it is not called by any other
function of the driver.
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20210816160617.11949-2-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/r8188eu/core/rtw_br_ext.c')
| -rw-r--r-- | drivers/staging/r8188eu/core/rtw_br_ext.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_br_ext.c b/drivers/staging/r8188eu/core/rtw_br_ext.c index 8be025992270..e8eea95a52e3 100644 --- a/drivers/staging/r8188eu/core/rtw_br_ext.c +++ b/drivers/staging/r8188eu/core/rtw_br_ext.c @@ -791,67 +791,6 @@ int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method) return -1; } -int nat25_handle_frame(struct adapter *priv, struct sk_buff *skb) -{ - if (!(skb->data[0] & 1)) { - int is_vlan_tag = 0, i, retval = 0; - unsigned short vlan_hdr = 0; - unsigned short protocol; - - protocol = be16_to_cpu(*((__be16 *)(skb->data + 2 * ETH_ALEN))); - if (protocol == ETH_P_8021Q) { - is_vlan_tag = 1; - vlan_hdr = *((unsigned short *)(skb->data+ETH_ALEN*2+2)); - for (i = 0; i < 6; i++) - *((unsigned short *)(skb->data+ETH_ALEN*2+2-i*2)) = *((unsigned short *)(skb->data+ETH_ALEN*2-2-i*2)); - skb_pull(skb, 4); - } - - if (!priv->ethBrExtInfo.nat25_disable) { - spin_lock_bh(&priv->br_ext_lock); - /* - * This function look up the destination network address from - * the NAT2.5 database. Return value = -1 means that the - * corresponding network protocol is NOT support. - */ - if (!priv->ethBrExtInfo.nat25sc_disable && - (be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_IP) && - !memcmp(priv->scdb_ip, skb->data+ETH_HLEN+16, 4)) { - memcpy(skb->data, priv->scdb_mac, ETH_ALEN); - - spin_unlock_bh(&priv->br_ext_lock); - } else { - spin_unlock_bh(&priv->br_ext_lock); - - retval = nat25_db_handle(priv, skb, NAT25_LOOKUP); - } - } else { - if (((be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_IP) && - !memcmp(priv->br_ip, skb->data+ETH_HLEN+16, 4)) || - ((be16_to_cpu(*((__be16 *)(skb->data+ETH_ALEN*2))) == ETH_P_ARP) && - !memcmp(priv->br_ip, skb->data+ETH_HLEN+24, 4))) { - /* for traffic to upper TCP/IP */ - retval = nat25_db_handle(priv, skb, NAT25_LOOKUP); - } - } - - if (is_vlan_tag) { - skb_push(skb, 4); - for (i = 0; i < 6; i++) - *((unsigned short *)(skb->data+i*2)) = *((unsigned short *)(skb->data+4+i*2)); - *((__be16 *)(skb->data+ETH_ALEN*2)) = __constant_htons(ETH_P_8021Q); - *((unsigned short *)(skb->data+ETH_ALEN*2+2)) = vlan_hdr; - } - - if (retval == -1) { - /* DEBUG_ERR("NAT25: Lookup fail!\n"); */ - return -1; - } - } - - return 0; -} - #define SERVER_PORT 67 #define CLIENT_PORT 68 #define DHCP_MAGIC 0x63825363 |