diff options
| author | Antonio Quartulli <ordex@autistici.org> | 2011-10-16 20:32:02 +0200 |
|---|---|---|
| committer | Sven Eckelmann <sven@narfation.org> | 2011-11-20 13:08:34 +0100 |
| commit | dc58fe32e6a4fbd270e8f045225ce475073d0772 (patch) | |
| tree | 00b2fb40bff5f673c2dd0e9ef798d25e17c22e67 | |
| parent | batman-adv: directly write tt entries without buffering (diff) | |
| download | linux-dc58fe32e6a4fbd270e8f045225ce475073d0772.tar.xz linux-dc58fe32e6a4fbd270e8f045225ce475073d0772.zip | |
batman-adv: linearise the tt_response skb only if needed
The TT_RESPONSE skb has to be linearised only if the node plans to access the
packet payload (so only if the message is directed to that node). In all the
other cases the node can avoid this memory operation
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
| -rw-r--r-- | net/batman-adv/routing.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 60ce4077348b..e0e7b7b79ca9 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -616,13 +616,14 @@ int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) } break; case TT_RESPONSE: - /* packet needs to be linearized to access the TT changes */ - if (skb_linearize(skb) < 0) - goto out; + if (is_my_mac(tt_query->dst)) { + /* packet needs to be linearized to access the TT + * changes */ + if (skb_linearize(skb) < 0) + goto out; - if (is_my_mac(tt_query->dst)) handle_tt_response(bat_priv, tt_query); - else { + } else { bat_dbg(DBG_TT, bat_priv, "Routing TT_RESPONSE to %pM [%c]\n", tt_query->dst, |