bonding: 3ad: remove bond_3ad_rx_indication's length argument

Since the received lacpdu is accessed via skb_header_pointer() in
bond_3ad_lacpdu_recv() we no longer need to check for skb->len's length.
If the returned lacpdu pointer is not null that should be enough.
Signed-off-by: NNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bonding/bond_3ad.c

@@ -2348,22 +2348,17 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
  * bond_3ad_rx_indication - handle a received frame
  * @lacpdu: received lacpdu
  * @slave: slave struct to work on
- * @length: length of the data received
  *
  * It is assumed that frames that were sent on this NIC don't returned as new
  * received frames (loopback). Since only the payload is given to this
  * function, it check for loopback.
  */
-static int bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave,
-				  u16 length)
+static int bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave)
 {
 	int ret = RX_HANDLER_ANOTHER;
 	struct bond_marker *marker;
 	struct port *port;
 
-	if (length < sizeof(struct lacpdu))
-		return ret;
-
 	port = &(SLAVE_AD_INFO(slave)->port);
 	if (!port->slave) {
 		net_warn_ratelimited("%s: Warning: port of slave %s is uninitialized\n",
@@ -2643,7 +2638,7 @@ int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
 	if (!lacpdu)
 		return RX_HANDLER_ANOTHER;
 
-	return bond_3ad_rx_indication(lacpdu, slave, skb->len);
+	return bond_3ad_rx_indication(lacpdu, slave);
 }
 
 /**