1 files changed, 0 insertions, 293 deletions

diff --git a/net/batman-adv/aggregation.c b/net/batman-adv/aggregation.c
deleted file mode 100644
index 69467fe71ff2..000000000000
--- a/net/batman-adv/aggregation.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#include "main.h"
-#include "translation-table.h"
-#include "aggregation.h"
-#include "send.h"
-#include "routing.h"
-#include "hard-interface.h"
-
-/* return true if new_packet can be aggregated with forw_packet */
-static bool can_aggregate_with(const struct batman_packet *new_batman_packet,
-			       struct bat_priv *bat_priv,
-			       int packet_len,
-			       unsigned long send_time,
-			       bool directlink,
-			       const struct hard_iface *if_incoming,
-			       const struct forw_packet *forw_packet)
-{
-	struct batman_packet *batman_packet =
-		(struct batman_packet *)forw_packet->skb->data;
-	int aggregated_bytes = forw_packet->packet_len + packet_len;
-	struct hard_iface *primary_if = NULL;
-	bool res = false;
-
-	/**
-	 * we can aggregate the current packet to this aggregated packet
-	 * if:
-	 *
-	 * - the send time is within our MAX_AGGREGATION_MS time
-	 * - the resulting packet wont be bigger than
-	 *   MAX_AGGREGATION_BYTES
-	 */
-
-	if (time_before(send_time, forw_packet->send_time) &&
-	    time_after_eq(send_time + msecs_to_jiffies(MAX_AGGREGATION_MS),
-					forw_packet->send_time) &&
-	    (aggregated_bytes <= MAX_AGGREGATION_BYTES)) {
-
-		/**
-		 * check aggregation compatibility
-		 * -> direct link packets are broadcasted on
-		 *    their interface only
-		 * -> aggregate packet if the current packet is
-		 *    a "global" packet as well as the base
-		 *    packet
-		 */
-
-		primary_if = primary_if_get_selected(bat_priv);
-		if (!primary_if)
-			goto out;
-
-		/* packets without direct link flag and high TTL
-		 * are flooded through the net  */
-		if ((!directlink) &&
-		    (!(batman_packet->flags & DIRECTLINK)) &&
-		    (batman_packet->ttl != 1) &&
-
-		    /* own packets originating non-primary
-		     * interfaces leave only that interface */
-		    ((!forw_packet->own) ||
-		     (forw_packet->if_incoming == primary_if))) {
-			res = true;
-			goto out;
-		}
-
-		/* if the incoming packet is sent via this one
-		 * interface only - we still can aggregate */
-		if ((directlink) &&
-		    (new_batman_packet->ttl == 1) &&
-		    (forw_packet->if_incoming == if_incoming) &&
-
-		    /* packets from direct neighbors or
-		     * own secondary interface packets
-		     * (= secondary interface packets in general) */
-		    (batman_packet->flags & DIRECTLINK ||
-		     (forw_packet->own &&
-		      forw_packet->if_incoming != primary_if))) {
-			res = true;
-			goto out;
-		}
-	}
-
-out:
-	if (primary_if)
-		hardif_free_ref(primary_if);
-	return res;
-}
-
-/* create a new aggregated packet and add this packet to it */
-static void new_aggregated_packet(const unsigned char *packet_buff,
-				  int packet_len, unsigned long send_time,
-				  bool direct_link,
-				  struct hard_iface *if_incoming,
-				  int own_packet)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct forw_packet *forw_packet_aggr;
-	unsigned char *skb_buff;
-
-	if (!atomic_inc_not_zero(&if_incoming->refcount))
-		return;
-
-	/* own packet should always be scheduled */
-	if (!own_packet) {
-		if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
-			bat_dbg(DBG_BATMAN, bat_priv,
-				"batman packet queue full\n");
-			goto out;
-		}
-	}
-
-	forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC);
-	if (!forw_packet_aggr) {
-		if (!own_packet)
-			atomic_inc(&bat_priv->batman_queue_left);
-		goto out;
-	}
-
-	if ((atomic_read(&bat_priv->aggregated_ogms)) &&
-	    (packet_len < MAX_AGGREGATION_BYTES))
-		forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
-						      sizeof(struct ethhdr));
-	else
-		forw_packet_aggr->skb = dev_alloc_skb(packet_len +
-						      sizeof(struct ethhdr));
-
-	if (!forw_packet_aggr->skb) {
-		if (!own_packet)
-			atomic_inc(&bat_priv->batman_queue_left);
-		kfree(forw_packet_aggr);
-		goto out;
-	}
-	skb_reserve(forw_packet_aggr->skb, sizeof(struct ethhdr));
-
-	INIT_HLIST_NODE(&forw_packet_aggr->list);
-
-	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
-	forw_packet_aggr->packet_len = packet_len;
-	memcpy(skb_buff, packet_buff, packet_len);
-
-	forw_packet_aggr->own = own_packet;
-	forw_packet_aggr->if_incoming = if_incoming;
-	forw_packet_aggr->num_packets = 0;
-	forw_packet_aggr->direct_link_flags = NO_FLAGS;
-	forw_packet_aggr->send_time = send_time;
-
-	/* save packet direct link flag status */
-	if (direct_link)
-		forw_packet_aggr->direct_link_flags |= 1;
-
-	/* add new packet to packet list */
-	spin_lock_bh(&bat_priv->forw_bat_list_lock);
-	hlist_add_head(&forw_packet_aggr->list, &bat_priv->forw_bat_list);
-	spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-
-	/* start timer for this packet */
-	INIT_DELAYED_WORK(&forw_packet_aggr->delayed_work,
-			  send_outstanding_bat_packet);
-	queue_delayed_work(bat_event_workqueue,
-			   &forw_packet_aggr->delayed_work,
-			   send_time - jiffies);
-
-	return;
-out:
-	hardif_free_ref(if_incoming);
-}
-
-/* aggregate a new packet into the existing aggregation */
-static void aggregate(struct forw_packet *forw_packet_aggr,
-		      const unsigned char *packet_buff, int packet_len,
-		      bool direct_link)
-{
-	unsigned char *skb_buff;
-
-	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
-	memcpy(skb_buff, packet_buff, packet_len);
-	forw_packet_aggr->packet_len += packet_len;
-	forw_packet_aggr->num_packets++;
-
-	/* save packet direct link flag status */
-	if (direct_link)
-		forw_packet_aggr->direct_link_flags |=
-			(1 << forw_packet_aggr->num_packets);
-}
-
-void add_bat_packet_to_list(struct bat_priv *bat_priv,
-			    unsigned char *packet_buff, int packet_len,
-			    struct hard_iface *if_incoming, int own_packet,
-			    unsigned long send_time)
-{
-	/**
-	 * _aggr -> pointer to the packet we want to aggregate with
-	 * _pos -> pointer to the position in the queue
-	 */
-	struct forw_packet *forw_packet_aggr = NULL, *forw_packet_pos = NULL;
-	struct hlist_node *tmp_node;
-	struct batman_packet *batman_packet =
-		(struct batman_packet *)packet_buff;
-	bool direct_link = batman_packet->flags & DIRECTLINK ? 1 : 0;
-
-	/* find position for the packet in the forward queue */
-	spin_lock_bh(&bat_priv->forw_bat_list_lock);
-	/* own packets are not to be aggregated */
-	if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
-		hlist_for_each_entry(forw_packet_pos, tmp_node,
-				     &bat_priv->forw_bat_list, list) {
-			if (can_aggregate_with(batman_packet,
-					       bat_priv,
-					       packet_len,
-					       send_time,
-					       direct_link,
-					       if_incoming,
-					       forw_packet_pos)) {
-				forw_packet_aggr = forw_packet_pos;
-				break;
-			}
-		}
-	}
-
-	/* nothing to aggregate with - either aggregation disabled or no
-	 * suitable aggregation packet found */
-	if (!forw_packet_aggr) {
-		/* the following section can run without the lock */
-		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-
-		/**
-		 * if we could not aggregate this packet with one of the others
-		 * we hold it back for a while, so that it might be aggregated
-		 * later on
-		 */
-		if ((!own_packet) &&
-		    (atomic_read(&bat_priv->aggregated_ogms)))
-			send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
-
-		new_aggregated_packet(packet_buff, packet_len,
-				      send_time, direct_link,
-				      if_incoming, own_packet);
-	} else {
-		aggregate(forw_packet_aggr,
-			  packet_buff, packet_len,
-			  direct_link);
-		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-	}
-}
-
-/* unpack the aggregated packets and process them one by one */
-void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
-			     unsigned char *packet_buff, int packet_len,
-			     struct hard_iface *if_incoming)
-{
-	struct batman_packet *batman_packet;
-	int buff_pos = 0;
-	unsigned char *tt_buff;
-
-	batman_packet = (struct batman_packet *)packet_buff;
-
-	do {
-		/* network to host order for our 32bit seqno and the
-		   orig_interval */
-		batman_packet->seqno = ntohl(batman_packet->seqno);
-		batman_packet->tt_crc = ntohs(batman_packet->tt_crc);
-
-		tt_buff = packet_buff + buff_pos + BAT_PACKET_LEN;
-
-		receive_bat_packet(ethhdr, batman_packet, tt_buff, if_incoming);
-
-		buff_pos += BAT_PACKET_LEN +
-			tt_len(batman_packet->tt_num_changes);
-
-		batman_packet = (struct batman_packet *)
-			(packet_buff + buff_pos);
-	} while (aggregated_packet(buff_pos, packet_len,
-				   batman_packet->tt_num_changes));
-}