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authorMatthias Schiffer <mschiffer@universe-factory.net>2013-03-09 23:14:23 +0100
committerAntonio Quartulli <ordex@autistici.org>2013-05-29 02:44:53 +0200
commitcaf65bfcc5dbabd7222fa45fdcd42ce0783d7a42 (patch)
treebb338fcf3987a38680336278c43bb6c1ccdb7b39 /net/batman-adv/send.c
parentde68d1003d9eb0a5f7d4714315614e4bc956f68e (diff)
downloadop-kernel-dev-caf65bfcc5dbabd7222fa45fdcd42ce0783d7a42.zip
op-kernel-dev-caf65bfcc5dbabd7222fa45fdcd42ce0783d7a42.tar.gz
batman-adv: send each broadcast only once on non-wireless interfaces
While it makes sense to send each broadcast thrice on 802.11 (WLAN) interfaces as broadcasts are often unreliable on these, there is no reason to do so on other interface types. The increased the overhead can be harmful on low-bandwidth links like VPN connections over slow internet lines, therefore it is better to reduce the number of broadcast packets sent on non-wireless links to one. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv/send.c')
-rw-r--r--net/batman-adv/send.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 263cfd1..eb16b04d 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -260,6 +260,9 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
if (hard_iface->soft_iface != soft_iface)
continue;
+ if (forw_packet->num_packets >= hard_iface->num_bcasts)
+ continue;
+
/* send a copy of the saved skb */
skb1 = skb_clone(forw_packet->skb, GFP_ATOMIC);
if (skb1)
@@ -271,7 +274,7 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
forw_packet->num_packets++;
/* if we still have some more bcasts to send */
- if (forw_packet->num_packets < 3) {
+ if (forw_packet->num_packets < BATADV_NUM_BCASTS_MAX) {
_batadv_add_bcast_packet_to_list(bat_priv, forw_packet,
msecs_to_jiffies(5));
return;
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