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mac80211: don't re-init rate control when receiving mesh beacon 

Rate control is re-initialized whenever a beacon from a mesh
peer received, breaking the algorithms and resulting in low
performance. Return early from mesh_peer_init if we already
established a link with this peer to avoid this.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
[clarify commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Chun-Yeow Yeoh 2012-07-24 11:52:35 +08:00 committed by Johannes Berg
parent 173f865474
commit bae35d92b6
1 changed files with 5 additions and 0 deletions
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5
net/mac80211/mesh_plink.c
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@ -362,6 +362,11 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
spin_lock_bh(&sta->lock);
sta->last_rx = jiffies;
if (sta->plink_state == NL80211_PLINK_ESTAB) {
spin_unlock_bh(&sta->lock);
return sta;
}
sta->sta.supp_rates[band] = rates;
if (elems->ht_cap_elem &&
sdata->local->_oper_channel_type != NL80211_CHAN_NO_HT)