Return-path: Received: from mail-gg0-f174.google.com ([209.85.161.174]:48501 "EHLO mail-gg0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750872Ab2GWEH7 (ORCPT ); Mon, 23 Jul 2012 00:07:59 -0400 Received: by gglu4 with SMTP id u4so5062613ggl.19 for ; Sun, 22 Jul 2012 21:07:59 -0700 (PDT) From: Chun-Yeow Yeoh To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net, devel@lists.open80211s.org, Chun-Yeow Yeoh Subject: [PATCH v2] mac80211: add extra checking for RC init upon receiving mesh beacon Date: Mon, 23 Jul 2012 12:06:09 +0800 Message-Id: <1343016370-31163-1-git-send-email-yeohchunyeow@gmail.com> (sfid-20120723_060803_455883_5F4150DE) Sender: linux-wireless-owner@vger.kernel.org List-ID: Rate control statistic is flushed whenever the mesh beacon is received. This may not optimizes the performance of rate control algorithm. This patch ensures that we return early from mesh_peer_init if the plink_state is ESTAB. Thus, avoid calling the rate_control_rate_init again for established mesh STA. Signed-off-by: Chun-Yeow Yeoh --- v2: simplify the logic checking (Thomas Pedersen) net/mac80211/mesh_plink.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 4256859..a73741c 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -359,6 +359,9 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata, insert = true; } + if (sta->plink_state == NL80211_PLINK_ESTAB) + return sta; + spin_lock_bh(&sta->lock); sta->last_rx = jiffies; sta->sta.supp_rates[band] = rates; -- 1.7.0.4