diff options
Diffstat (limited to 'drivers/staging/batman-adv/send.c')
| -rw-r--r-- | drivers/staging/batman-adv/send.c | 59 |
1 files changed, 45 insertions, 14 deletions
diff --git a/drivers/staging/batman-adv/send.c b/drivers/staging/batman-adv/send.c index de2344a071c4..31d86ae9b147 100644 --- a/drivers/staging/batman-adv/send.c +++ b/drivers/staging/batman-adv/send.c @@ -57,7 +57,7 @@ int send_skb_packet(struct sk_buff *skb, { struct ethhdr *ethhdr; - if (batman_if->if_active != IF_ACTIVE) + if (batman_if->if_status != IF_ACTIVE) goto send_skb_err; if (unlikely(!batman_if->net_dev)) @@ -123,7 +123,7 @@ static void send_packet_to_if(struct forw_packet *forw_packet, int16_t buff_pos; struct batman_packet *batman_packet; - if (batman_if->if_active != IF_ACTIVE) + if (batman_if->if_status != IF_ACTIVE) return; packet_num = 0; @@ -182,7 +182,7 @@ static void send_packet(struct forw_packet *forw_packet) return; } - if (forw_packet->if_incoming->if_active != IF_ACTIVE) + if (forw_packet->if_incoming->if_status != IF_ACTIVE) return; /* multihomed peer assumed */ @@ -243,7 +243,13 @@ void schedule_own_packet(struct batman_if *batman_if) struct bat_priv *bat_priv = netdev_priv(soft_device); unsigned long send_time; struct batman_packet *batman_packet; - int vis_server = atomic_read(&bat_priv->vis_mode); + int vis_server; + + if ((batman_if->if_status == IF_NOT_IN_USE) || + (batman_if->if_status == IF_TO_BE_REMOVED)) + return; + + vis_server = atomic_read(&bat_priv->vis_mode); /** * the interface gets activated here to avoid race conditions between @@ -252,11 +258,12 @@ void schedule_own_packet(struct batman_if *batman_if) * outdated packets (especially uninitialized mac addresses) in the * packet queue */ - if (batman_if->if_active == IF_TO_BE_ACTIVATED) - batman_if->if_active = IF_ACTIVE; + if (batman_if->if_status == IF_TO_BE_ACTIVATED) + batman_if->if_status = IF_ACTIVE; /* if local hna has changed and interface is a primary interface */ - if ((atomic_read(&hna_local_changed)) && (batman_if->if_num == 0)) + if ((atomic_read(&hna_local_changed)) && + (batman_if == bat_priv->primary_if)) rebuild_batman_packet(batman_if); /** @@ -374,13 +381,11 @@ void add_bcast_packet_to_list(struct sk_buff *skb) forw_packet = kmalloc(sizeof(struct forw_packet), GFP_ATOMIC); if (!forw_packet) - return; + goto out; skb = skb_copy(skb, GFP_ATOMIC); - if (!skb) { - kfree(forw_packet); - return; - } + if (!skb) + goto packet_free; skb_reset_mac_header(skb); @@ -391,6 +396,12 @@ void add_bcast_packet_to_list(struct sk_buff *skb) forw_packet->num_packets = 0; _add_bcast_packet_to_list(forw_packet, 1); + return; + +packet_free: + kfree(forw_packet); +out: + return; } void send_outstanding_bcast_packet(struct work_struct *work) @@ -455,19 +466,31 @@ void send_outstanding_bat_packet(struct work_struct *work) forw_packet_free(forw_packet); } -void purge_outstanding_packets(void) +void purge_outstanding_packets(struct batman_if *batman_if) { struct forw_packet *forw_packet; struct hlist_node *tmp_node, *safe_tmp_node; unsigned long flags; - bat_dbg(DBG_BATMAN, "purge_outstanding_packets()\n"); + if (batman_if) + bat_dbg(DBG_BATMAN, "purge_outstanding_packets(): %s\n", + batman_if->dev); + else + bat_dbg(DBG_BATMAN, "purge_outstanding_packets()\n"); /* free bcast list */ spin_lock_irqsave(&forw_bcast_list_lock, flags); hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node, &forw_bcast_list, list) { + /** + * if purge_outstanding_packets() was called with an argmument + * we delete only packets belonging to the given interface + */ + if ((batman_if) && + (forw_packet->if_incoming != batman_if)) + continue; + spin_unlock_irqrestore(&forw_bcast_list_lock, flags); /** @@ -484,6 +507,14 @@ void purge_outstanding_packets(void) hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node, &forw_bat_list, list) { + /** + * if purge_outstanding_packets() was called with an argmument + * we delete only packets belonging to the given interface + */ + if ((batman_if) && + (forw_packet->if_incoming != batman_if)) + continue; + spin_unlock_irqrestore(&forw_bat_list_lock, flags); /** |