Commit cf71f43e authored by David S. Miller's avatar David S. Miller

Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge

Antonio Quartulli says:

====================
pull request: batman-adv 20150603

here you have our second batch of patches intended for net-next.

In this patchset you won't find any new features, but quite some code
cleanup work, a bunch of code style fixes and also comments corrections
by Markus Pargmann.

Moreover you have a patch from Sven Eckelmann removing an unnecessary
NULL check in batadv_iv_ogm_update_seqnos().

Please pull or let me know of any problem!
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 3349b0b7 f372d090
......@@ -28,7 +28,7 @@
/**
* enum batadv_dup_status - duplicate status
* @BATADV_NO_DUP: the packet is a duplicate
* @BATADV_NO_DUP: the packet is no duplicate
* @BATADV_ORIG_DUP: OGM is a duplicate in the originator (but not for the
* neighbor)
* @BATADV_NEIGH_DUP: OGM is a duplicate for the neighbor
......@@ -55,7 +55,7 @@ static void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
}
/**
* batadv_ring_buffer_set - compute the average of all non-zero values stored
* batadv_ring_buffer_avg - compute the average of all non-zero values stored
* in the given ring buffer
* @lq_recv: pointer to the ring buffer
*
......@@ -64,7 +64,9 @@ static void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
{
const uint8_t *ptr;
uint16_t count = 0, i = 0, sum = 0;
uint16_t count = 0;
uint16_t i = 0;
uint16_t sum = 0;
ptr = lq_recv;
......@@ -642,19 +644,16 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
if (!batadv_atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
"batman packet queue full\n");
goto out;
goto out_free_outgoing;
}
}
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 (!forw_packet_aggr)
goto out_nomem;
if ((atomic_read(&bat_priv->aggregated_ogms)) &&
(packet_len < BATADV_MAX_AGGREGATION_BYTES))
if (atomic_read(&bat_priv->aggregated_ogms) &&
packet_len < BATADV_MAX_AGGREGATION_BYTES)
skb_size = BATADV_MAX_AGGREGATION_BYTES;
else
skb_size = packet_len;
......@@ -662,12 +661,8 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
skb_size += ETH_HLEN;
forw_packet_aggr->skb = netdev_alloc_skb_ip_align(NULL, skb_size);
if (!forw_packet_aggr->skb) {
if (!own_packet)
atomic_inc(&bat_priv->batman_queue_left);
kfree(forw_packet_aggr);
goto out;
}
if (!forw_packet_aggr->skb)
goto out_free_forw_packet;
forw_packet_aggr->skb->priority = TC_PRIO_CONTROL;
skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
......@@ -699,7 +694,12 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
send_time - jiffies);
return;
out:
out_free_forw_packet:
kfree(forw_packet_aggr);
out_nomem:
if (!own_packet)
atomic_inc(&bat_priv->batman_queue_left);
out_free_outgoing:
batadv_hardif_free_ref(if_outgoing);
out_free_incoming:
batadv_hardif_free_ref(if_incoming);
......@@ -752,13 +752,13 @@ static void batadv_iv_ogm_queue_add(struct batadv_priv *bat_priv,
unsigned long max_aggregation_jiffies;
batadv_ogm_packet = (struct batadv_ogm_packet *)packet_buff;
direct_link = batadv_ogm_packet->flags & BATADV_DIRECTLINK ? 1 : 0;
direct_link = !!(batadv_ogm_packet->flags & BATADV_DIRECTLINK);
max_aggregation_jiffies = msecs_to_jiffies(BATADV_MAX_AGGREGATION_MS);
/* 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)) {
if (atomic_read(&bat_priv->aggregated_ogms) && !own_packet) {
hlist_for_each_entry(forw_packet_pos,
&bat_priv->forw_bat_list, list) {
if (batadv_iv_ogm_can_aggregate(batadv_ogm_packet,
......@@ -1034,9 +1034,10 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
batadv_orig_node_free_ref(orig_tmp);
if (!neigh_node)
goto unlock;
} else
} else {
batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
"Updating existing last-hop neighbor of originator\n");
}
rcu_read_unlock();
neigh_ifinfo = batadv_neigh_ifinfo_new(neigh_node, if_outgoing);
......@@ -1356,7 +1357,6 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
out:
spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
batadv_orig_node_free_ref(orig_node);
if (orig_ifinfo)
batadv_orig_ifinfo_free_ref(orig_ifinfo);
return ret;
}
......
......@@ -209,10 +209,13 @@ void batadv_mesh_free(struct net_device *soft_iface)
* interfaces in the current mesh
* @bat_priv: the bat priv with all the soft interface information
* @addr: the address to check
*
* Returns 'true' if the mac address was found, false otherwise.
*/
int batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr)
bool batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr)
{
const struct batadv_hard_iface *hard_iface;
bool is_my_mac = false;
rcu_read_lock();
list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
......@@ -223,12 +226,12 @@ int batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr)
continue;
if (batadv_compare_eth(hard_iface->net_dev->dev_addr, addr)) {
rcu_read_unlock();
return 1;
is_my_mac = true;
break;
}
}
rcu_read_unlock();
return 0;
return is_my_mac;
}
/**
......@@ -510,14 +513,12 @@ static struct batadv_algo_ops *batadv_algo_get(char *name)
int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
{
struct batadv_algo_ops *bat_algo_ops_tmp;
int ret;
bat_algo_ops_tmp = batadv_algo_get(bat_algo_ops->name);
if (bat_algo_ops_tmp) {
pr_info("Trying to register already registered routing algorithm: %s\n",
bat_algo_ops->name);
ret = -EEXIST;
goto out;
return -EEXIST;
}
/* all algorithms must implement all ops (for now) */
......@@ -531,32 +532,26 @@ int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
!bat_algo_ops->bat_neigh_is_equiv_or_better) {
pr_info("Routing algo '%s' does not implement required ops\n",
bat_algo_ops->name);
ret = -EINVAL;
goto out;
return -EINVAL;
}
INIT_HLIST_NODE(&bat_algo_ops->list);
hlist_add_head(&bat_algo_ops->list, &batadv_algo_list);
ret = 0;
out:
return ret;
return 0;
}
int batadv_algo_select(struct batadv_priv *bat_priv, char *name)
{
struct batadv_algo_ops *bat_algo_ops;
int ret = -EINVAL;
bat_algo_ops = batadv_algo_get(name);
if (!bat_algo_ops)
goto out;
return -EINVAL;
bat_priv->bat_algo_ops = bat_algo_ops;
ret = 0;
out:
return ret;
return 0;
}
int batadv_algo_seq_print_text(struct seq_file *seq, void *offset)
......
......@@ -195,7 +195,7 @@ extern struct workqueue_struct *batadv_event_workqueue;
int batadv_mesh_init(struct net_device *soft_iface);
void batadv_mesh_free(struct net_device *soft_iface);
int batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr);
bool batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr);
struct batadv_hard_iface *
batadv_seq_print_text_primary_if_get(struct seq_file *seq);
int batadv_max_header_len(void);
......@@ -279,7 +279,7 @@ static inline void _batadv_dbg(int type __always_unused,
*
* note: can't use ether_addr_equal() as it requires aligned memory
*/
static inline int batadv_compare_eth(const void *data1, const void *data2)
static inline bool batadv_compare_eth(const void *data1, const void *data2)
{
return ether_addr_equal_unaligned(data1, data2);
}
......
......@@ -183,9 +183,10 @@ struct batadv_orig_node_vlan {
/**
* struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members
* @bcast_own: bitfield containing the number of our OGMs this orig_node
* rebroadcasted "back" to us (relative to last_real_seqno)
* @bcast_own_sum: counted result of bcast_own
* @bcast_own: set of bitfields (one per hard interface) where each one counts
* the number of our OGMs this orig_node rebroadcasted "back" to us (relative
* to last_real_seqno). Every bitfield is BATADV_TQ_LOCAL_WINDOW_SIZE bits long.
* @bcast_own_sum: sum of bcast_own
* @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum,
* neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count
*/
......
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